diff --git a/Backend-libXML/.gitignore b/Backend-libXML/.gitignore
new file mode 100644
index 0000000..9ca9383
--- /dev/null
+++ b/Backend-libXML/.gitignore
@@ -0,0 +1,3 @@
+.idea
+__pycache**
+venv
diff --git a/Backend-libXML/Dockerfile b/Backend-libXML/Dockerfile
new file mode 100644
index 0000000..f3524b4
--- /dev/null
+++ b/Backend-libXML/Dockerfile
@@ -0,0 +1,8 @@
+FROM tiangolo/meinheld-gunicorn-flask:python3.9
+
+COPY ./requirements.txt /app/requirements.txt
+
+RUN pip install --no-cache-dir --upgrade -r /app/requirements.txt
+
+COPY ./main.py /app/
+COPY ./Parser.py /app/
\ No newline at end of file
diff --git a/Backend-libXML/Parser.py b/Backend-libXML/Parser.py
new file mode 100644
index 0000000..c652212
--- /dev/null
+++ b/Backend-libXML/Parser.py
@@ -0,0 +1,69 @@
+from lxml import etree
+
+
+def xpath(source: str, xpath: str) -> str:
+    """
+    Method used to get nodes from XML string using XPath
+
+    :param source: XML string used for selection
+    :type source: str
+    :param xpath: XPath query used for selection
+    :type xpath: str
+    :return: Nodes selected using XPath
+    :rtype: str
+    """
+
+    
+    root = etree.XML(source)
+    nsmap = root.nsmap
+
+    # LXML doesn't accept empty (None) namespace prefix,
+    # so it need to be deleted if exists
+    if None in nsmap:
+        nsmap.pop(None)
+    
+    result = root.xpath(xpath, namespaces=nsmap)
+    result_string = ""
+    for e in result:
+        result_string += etree.tostring(e, pretty_print=True).decode() + "\n"
+    return result_string
+
+
+
+def xsd(source: str, xsd: str) -> bool:
+    """
+    Method used to validate XML string against XSD schema
+    :param source: XML string used for validation
+    :type source: str
+    :param xsd: XSD schema to validate XML against
+    :type xsd: str
+    :return: Message saying, if the validation was successful or not
+    :rtype: str
+    """
+    xml_schema = etree.XMLSchema(etree.XML(xsd))
+
+    xml = etree.XML(source)
+    if xml_schema.validate(xml):
+        return "XML is valid."
+    else:
+        return "XML is NOT valid."
+    
+    
+def xslt(source: str, xslt: str) -> str:
+    """
+    Method used to transformate XML string using XSLT
+
+    :param source: XML string to transform
+    :type source: str
+    :param xslt: XSLT string used to transformate XML
+    :type xslt: str
+    :return: Result of transformation
+    :rtype: str
+    """
+    xslt_transform = etree.XSLT(etree.XML(xslt))
+
+    xml = etree.XML(source)
+
+    transformated = xslt_transform(xml)
+    print(transformated)
+    return str(transformated)
\ No newline at end of file
diff --git a/Backend-libXML/main.py b/Backend-libXML/main.py
new file mode 100644
index 0000000..0869a00
--- /dev/null
+++ b/Backend-libXML/main.py
@@ -0,0 +1,74 @@
+from flask import Flask
+from flask_cors import CORS
+from flask import request
+from lxml import etree
+import json
+import time
+import Parser
+
+
+app = Flask(__name__)
+CORS(app)
+cors = CORS(app, resource={
+    r"/*":{
+        "origins":"*"
+    }
+})
+
+def process_xml(request: request, type: str) -> str:
+    """Function to process 
+
+    :param request: Received request
+    :type request: request
+    :param type: Type of needed processing: xsd, xslt or xpath
+    :type type: str
+    :raises ValueError: is raised when type is different than those provided above
+    :return: response JSON converted to string and response code
+    :rtype: str, int
+    """
+    start = time.time_ns()
+    code = 200
+    response_json = dict()
+    try:
+        request_data = json.loads(request.get_data(as_text=True))
+        data = request_data['data']
+        process = request_data['process']
+        if (type == "xsd"):
+            response_json['result'] = Parser.xsd(data, process)
+        elif (type == "xslt"):
+            response_json['result'] = Parser.xslt(data, process)
+        elif (type == "xpath"):
+            response_json['result'] = Parser.xpath(data, process)
+        else:
+            raise ValueError("Valid operation types are: xsd, xslt, xpath")
+
+        response_json['status'] = "OK"
+    except KeyError as e:
+        response_json['result'] = "Missing key: " + str(e)
+        response_json['status'] = "ERR"
+        code = 400
+    except Exception as e:
+        response_json['result'] = str(e)
+        response_json['status'] = "ERR"
+        code = 400
+    finally:
+        exec_time = (time.time_ns() - start) / 10**6
+        response_json['time'] = f"{exec_time:.03f}"
+        response_json['processor'] = "libxml2 over lxml"
+        return json.dumps(response_json), code
+
+
+@app.route("/xpathpost", methods=["POST"])
+def xpath():
+    return process_xml(request, "xpath")
+
+@app.route("/xsdpost", methods=["POST"])
+def xsd():
+    return process_xml(request, "xsd")
+
+@app.route("/xsltpost", methods=["POST"])
+def xslt():
+    return process_xml(request, "xslt")
+
+if __name__ == "__main__":
+    app.run()
\ No newline at end of file
diff --git a/Backend-libXML/requirements.txt b/Backend-libXML/requirements.txt
new file mode 100644
index 0000000..7c41ff0
--- /dev/null
+++ b/Backend-libXML/requirements.txt
@@ -0,0 +1,3 @@
+lxml
+flask
+flask_cors
\ No newline at end of file
diff --git a/Backend-libXML/sample/xpath/data.json b/Backend-libXML/sample/xpath/data.json
new file mode 100644
index 0000000..2de1632
--- /dev/null
+++ b/Backend-libXML/sample/xpath/data.json
@@ -0,0 +1,6 @@
+{
+  "data": "<books><book id='1'><name>Hamlet</name><date>2001-05-04</date><authorId>1</authorId><availability>false</availability></book><book id='2'><name>Macbeth</name><date>2000-12-13</date><authorId>1</authorId><availability>false</availability></book><book id='3'><name>Harry Potter and the Sorcerer's Stone</name><date>2005-04-29</date><authorId>2</authorId><availability>true</availability></book><book id='4'><name>The Long Walk</name><date>2018-07-01</date><authorId>4</authorId><availability>true</availability></book><book id='5'><name>Misery</name><date>2018-01-31</date><authorId>4</authorId><availability>true</availability></book><book id='6'><name>Think and Grow Rich</name><date>2004-09-10</date><authorId>6</authorId><availability>true</availability></book><book id='7'><name>The Law of Success</name><date>1982-05-09</date><authorId>6</authorId><availability>false</availability></book><book id='8'><name>Patriot Games</name><date>1995-10-21</date><authorId>5</authorId><availability>false</availability></book><book id='9'><name>The Sum of All Fears</name><date>1992-09-19</date><authorId>5</authorId><availability>false</availability></book><book id='10'><name>The Alchemist</name><date>2017-02-20</date><authorId>3</authorId><availability>false</availability></book><book id='11'><name>Hamlet</name><date>1994-06-01</date><authorId>1</authorId><availability>false</availability></book><book id='12'><name>Measure for Measure</name><date>1990-03-23</date><authorId>1</authorId><availability>false</availability></book><book id='13'><name>Hamlet</name><date>1989-05-05</date><authorId>1</authorId><availability>true</availability></book><book id='14'><name>Hamlet</name><date>1999-05-30</date><authorId>1</authorId><availability>true</availability></book><book id='15'><name>The Law of Success</name><date>2004-11-26</date><authorId>6</authorId><availability>true</availability></book><book id='16'><name>Romeo and Juliet</name><date>1997-02-08</date><authorId>1</authorId><availability>true</availability></book><book id='17'><name>The Alchemist</name><date>2009-08-21</date><authorId>3</authorId><availability>true</availability></book></books>",
+  "process": "/books/book[name = 'The Law of Success']",
+  "processor": "saxon",
+  "version": "2.0"
+}
diff --git a/Backend-libXML/sample/xpath/dataNS.json b/Backend-libXML/sample/xpath/dataNS.json
new file mode 100644
index 0000000..ec5eb94
--- /dev/null
+++ b/Backend-libXML/sample/xpath/dataNS.json
@@ -0,0 +1,6 @@
+{
+  "data": "<b:books xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns='http://www.demo.com' xmlns:b='http://www.book.com' xmlns:a='http://www.author.com'><b:book id='1'><b:name>Hamlet</b:name><b:date>2001-05-04</b:date><a:authorId>1</a:authorId><b:availability>false</b:availability></b:book><b:book id='2'><b:name>Macbeth</b:name><b:date>2000-12-13</b:date><a:authorId>1</a:authorId><b:availability>false</b:availability></b:book><b:book id='3'><b:name>Harry Potter and the Sorcerer's Stone</b:name><b:date>2005-04-29</b:date><a:authorId>2</a:authorId><b:availability>true</b:availability></b:book><b:book id='4'><b:name>The Long Walk</b:name><b:date>2018-07-01</b:date><a:authorId>4</a:authorId><b:availability>true</b:availability></b:book><b:book id='5'><b:name>Misery</b:name><b:date>2018-01-31</b:date><a:authorId>4</a:authorId><b:availability>true</b:availability></b:book><b:book id='6'><b:name>Think and Grow Rich</b:name><b:date>2004-09-10</b:date><a:authorId>6</a:authorId><b:availability>true</b:availability></b:book><b:book id='7'><b:name>The Law of Success</b:name><b:date>1982-05-09</b:date><a:authorId>6</a:authorId><b:availability>false</b:availability></b:book><b:book id='8'><b:name>Patriot Games</b:name><b:date>1995-10-21</b:date><a:authorId>5</a:authorId><b:availability>false</b:availability></b:book><b:book id='9'><b:name>The Sum of All Fears</b:name><b:date>1992-09-19</b:date><a:authorId>5</a:authorId><b:availability>false</b:availability></b:book><b:book id='10'><b:name>The Alchemist</b:name><b:date>2017-02-20</b:date><a:authorId>3</a:authorId><b:availability>false</b:availability></b:book><b:book id='11'><b:name>Hamlet</b:name><b:date>1994-06-01</b:date><a:authorId>1</a:authorId><b:availability>false</b:availability></b:book><b:book id='12'><b:name>Measure for Measure</b:name><b:date>1990-03-23</b:date><a:authorId>1</a:authorId><b:availability>false</b:availability></b:book><b:book id='13'><b:name>Hamlet</b:name><b:date>1989-05-05</b:date><a:authorId>1</a:authorId><b:availability>true</b:availability></b:book><b:book id='14'><b:name>Hamlet</b:name><b:date>1999-05-30</b:date><a:authorId>1</a:authorId><b:availability>true</b:availability></b:book><b:book id='15'><b:name>The Law of Success</b:name><b:date>2004-11-26</b:date><a:authorId>6</a:authorId><b:availability>true</b:availability></b:book><b:book id='16'><b:name>Romeo and Juliet</b:name><b:date>1997-02-08</b:date><a:authorId>1</a:authorId><b:availability>true</b:availability></b:book><b:book id='17'><b:name>The Alchemist</b:name><b:date>2009-08-21</b:date><a:authorId>3</a:authorId><b:availability>true</b:availability></b:book></b:books>",
+  "process": "/b:books/b:book[b:name = 'The Law of Success']",
+  "processor": "saxon",
+  "version": "2.0"
+}
diff --git a/Backend-libXML/sample/xpath/non-ns.curl b/Backend-libXML/sample/xpath/non-ns.curl
new file mode 100644
index 0000000..7d4219f
--- /dev/null
+++ b/Backend-libXML/sample/xpath/non-ns.curl
@@ -0,0 +1,4 @@
+#url = "localhost:8081/xpathpost"
+url = "localhost:5000/xpath"
+request = "POST"
+data = "@data.json"
diff --git a/Backend-libXML/sample/xpath/ns.curl b/Backend-libXML/sample/xpath/ns.curl
new file mode 100644
index 0000000..f439c0e
--- /dev/null
+++ b/Backend-libXML/sample/xpath/ns.curl
@@ -0,0 +1,4 @@
+#url = "localhost:8081/xpathpost"
+url = "localhost:5000/xpath"
+request = "POST"
+data = "@dataNS.json"
diff --git a/Backend-libXML/sample/xsd/xsd.curl b/Backend-libXML/sample/xsd/xsd.curl
new file mode 100644
index 0000000..2481c02
--- /dev/null
+++ b/Backend-libXML/sample/xsd/xsd.curl
@@ -0,0 +1,4 @@
+#url = "http://localhost:8082/xsd"
+url = "http://localhost:5000/xsd"
+data = "@xsd.json"
+request = POST
diff --git a/Backend-libXML/sample/xsd/xsd.json b/Backend-libXML/sample/xsd/xsd.json
new file mode 100644
index 0000000..91dd2f2
--- /dev/null
+++ b/Backend-libXML/sample/xsd/xsd.json
@@ -0,0 +1,6 @@
+{
+    "data": "<ns0:values xmlns:ns0 = \"http://www.tibco.com/schemas/test/Test/Resources/Schema.xsd\"><ns0:value>Test</ns0:value><ns0:value>Test3</ns0:value></ns0:values>",
+    "process": "<xs:schema xmlns:xs=\"http://www.w3.org/2001/XMLSchema\" xmlns=\"http://www.tibco.com/schemas/test/Test/Resources/Schema.xsd\" targetNamespace=\"http://www.tibco.com/schemas/test/Test/Resources/Schema.xsd\" elementFormDefault=\"qualified\" attributeFormDefault=\"unqualified\"> <xs:element name=\"values\"><xs:complexType><xs:sequence><xs:element name=\"value\" type=\"xs:string\" minOccurs=\"0\" maxOccurs=\"unbounded\"/></xs:sequence></xs:complexType></xs:element></xs:schema>",
+    "processor": "saxon",
+    "version": "1.0"
+}
diff --git a/Backend-libXML/sample/xslt/xslt.curl b/Backend-libXML/sample/xslt/xslt.curl
new file mode 100644
index 0000000..d50edd1
--- /dev/null
+++ b/Backend-libXML/sample/xslt/xslt.curl
@@ -0,0 +1,3 @@
+url = "http://localhost:5000/xslt"
+data = "@xslt.json"
+request = POST
diff --git a/Backend-libXML/sample/xslt/xslt.json b/Backend-libXML/sample/xslt/xslt.json
new file mode 100644
index 0000000..f833a40
--- /dev/null
+++ b/Backend-libXML/sample/xslt/xslt.json
@@ -0,0 +1,6 @@
+{
+    "data": "<b:books xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns='http://www.demo.com' xmlns:b='http://www.book.com' xmlns:a='http://www.author.com'><b:book id='1'><b:name>Hamlet</b:name><b:date>2001-05-04</b:date><a:authorId>1</a:authorId><b:availability>false</b:availability></b:book><b:book id='2'><b:name>Macbeth</b:name><b:date>2000-12-13</b:date><a:authorId>1</a:authorId><b:availability>false</b:availability></b:book><b:book id='3'><b:name>Harry Potter and the Sorcerer's Stone</b:name><b:date>2005-04-29</b:date><a:authorId>2</a:authorId><b:availability>true</b:availability></b:book><b:book id='4'><b:name>The Long Walk</b:name><b:date>2018-07-01</b:date><a:authorId>4</a:authorId><b:availability>true</b:availability></b:book><b:book id='5'><b:name>Misery</b:name><b:date>2018-01-31</b:date><a:authorId>4</a:authorId><b:availability>true</b:availability></b:book><b:book id='6'><b:name>Think and Grow Rich</b:name><b:date>2004-09-10</b:date><a:authorId>6</a:authorId><b:availability>true</b:availability></b:book><b:book id='7'><b:name>The Law of Success</b:name><b:date>1982-05-09</b:date><a:authorId>6</a:authorId><b:availability>false</b:availability></b:book><b:book id='8'><b:name>Patriot Games</b:name><b:date>1995-10-21</b:date><a:authorId>5</a:authorId><b:availability>false</b:availability></b:book><b:book id='9'><b:name>The Sum of All Fears</b:name><b:date>1992-09-19</b:date><a:authorId>5</a:authorId><b:availability>false</b:availability></b:book><b:book id='10'><b:name>The Alchemist</b:name><b:date>2017-02-20</b:date><a:authorId>3</a:authorId><b:availability>false</b:availability></b:book><b:book id='11'><b:name>Hamlet</b:name><b:date>1994-06-01</b:date><a:authorId>1</a:authorId><b:availability>false</b:availability></b:book><b:book id='12'><b:name>Measure for Measure</b:name><b:date>1990-03-23</b:date><a:authorId>1</a:authorId><b:availability>false</b:availability></b:book><b:book id='13'><b:name>Hamlet</b:name><b:date>1989-05-05</b:date><a:authorId>1</a:authorId><b:availability>true</b:availability></b:book><b:book id='14'><b:name>Hamlet</b:name><b:date>1999-05-30</b:date><a:authorId>1</a:authorId><b:availability>true</b:availability></b:book><b:book id='15'><b:name>The Law of Success</b:name><b:date>2004-11-26</b:date><a:authorId>6</a:authorId><b:availability>true</b:availability></b:book><b:book id='16'><b:name>Romeo and Juliet</b:name><b:date>1997-02-08</b:date><a:authorId>1</a:authorId><b:availability>true</b:availability></b:book><b:book id='17'><b:name>The Alchemist</b:name><b:date>2009-08-21</b:date><a:authorId>3</a:authorId><b:availability>true</b:availability></b:book></b:books>",
+    "process": "<xsl:stylesheet version='1.0' xmlns:xsl='http://www.w3.org/1999/XSL/Transform' xmlns:b='http://www.demo.com'><xsl:template match='b:books'><Library><BookCount><xsl:value-of select='count(b:book)' /></BookCount></Library></xsl:template></xsl:stylesheet>",
+    "processor": "saxon",
+    "version": "1.0"
+}
diff --git a/Backend/mocked-services/src/main/resources/static/html/mock.html b/Backend/mocked-services/src/main/resources/static/html/mock.html
index f597720..8bedcb9 100644
--- a/Backend/mocked-services/src/main/resources/static/html/mock.html
+++ b/Backend/mocked-services/src/main/resources/static/html/mock.html
@@ -3,12 +3,12 @@
 <head>
     <title>R11 MockedServices</title>
     <meta charset="utf-8">
-    <link rel="stylesheet" href="http://localhost:8086/assets/css/common/fontello.css" type="text/css">
-    <link rel="stylesheet" href="http://localhost:8086/assets/css/mock-service/main.css" type="text/css">
+    <link rel="stylesheet" href="../css/fontello.css" type="text/css">
+    <link rel="stylesheet" href="../css/main.css" type="text/css">
     <!-- <link rel="stylesheet" href="css/common.css" type="text/css"> -->
-    <link rel="stylesheet" href="http://localhost:8086/assets/css/mock-service/common.css" type="text/css">
+    <link rel="stylesheet" href="../css/common.css" type="text/css">
     <script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
-    <script src="../js/dyn_host.js"></script>
+    <!-- <script src="../js/dyn_host.js"></script> -->
 </head>
 <body>
     <div class="container">
@@ -37,15 +37,15 @@
                             <!-- status -->
                             <div class="max-width  small-vertical-margin">
                                 <label for="httpStatus">Http Status</label>
-                                <input id="httpStatus" class="bordered-field max-width data-field" type="text" value="200" list="httpStatusSuggestion">
-                                <datalist id="httpStatusSuggestion">
-                                    <option value="200">
-                                    <option value="300">
-                                    <option value="400">
-                                    <option value="403">
-                                    <option value="404">
-                                    <option value="500">
-                                </datalist>
+                                <!-- <input id="httpStatus" class="bordered-field max-width data-field" type="text" value="200" list="httpStatusSuggestion"> -->
+                                <select id="httpStatus" class="bordered-field max-width data-field" value="200">
+                                    <option value="200">200</option>
+                                    <option value="300">300</option>
+                                    <option value="400">400</option>
+                                    <option value="403">403</option>
+                                    <option value="404">404</option>
+                                    <option value="500">500</option>
+                                </select>
                             </div>
                             <!-- content type -->
                             <div class="max-width  small-vertical-margin">
diff --git a/Backend/mocked-services/src/main/resources/static/js/dyn_host.js b/Backend/mocked-services/src/main/resources/static/js/dyn_host.js
deleted file mode 100644
index b13a6e1..0000000
--- a/Backend/mocked-services/src/main/resources/static/js/dyn_host.js
+++ /dev/null
@@ -1,11 +0,0 @@
-$(document).ready( function() {
-    console.log("Here")
-    let links = document.getElementsByTagName("link")
-    for (let i = 0; i < links.length; i++) {
-        let oldStr = links[i].href.split("/")
-        let endpoint = oldStr.slice(3).join("/")
-        links[i].href = window.location.protocol + "//" + window.location.hostname + ":8086/" + endpoint
-    }
-    
-});
-      
diff --git a/Backend/xslt-rest/src/main/java/com/r11/tools/xslt/SparkInitializer.java b/Backend/xslt-rest/src/main/java/com/r11/tools/xslt/SparkInitializer.java
index e17ad41..99a6133 100644
--- a/Backend/xslt-rest/src/main/java/com/r11/tools/xslt/SparkInitializer.java
+++ b/Backend/xslt-rest/src/main/java/com/r11/tools/xslt/SparkInitializer.java
@@ -1,5 +1,6 @@
 package com.r11.tools.xslt;
 
+import com.fasterxml.jackson.core.JsonParseException;
 import com.fasterxml.jackson.databind.JsonMappingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import com.r11.tools.xslt.processors.Saxon;
@@ -65,8 +66,15 @@ public class SparkInitializer {
         Map<String, String> responseMap = new HashMap<>();
         try {
             requestMap = mapper.readValue(body, Map.class);
-        } catch (JsonMappingException ex) {
-            ex.printStackTrace();
+        } catch (JsonMappingException | JsonParseException ex) {
+            LOG.error("Request JSON error. " + ex);
+            responseMap.put("result", ex.getMessage());
+            responseMap.put("processor", "N/A");
+            responseMap.put("status", "ERR");
+            responseMap.put("time", "N/A");
+            resp.status(400);
+            resp.body(mapper.writeValueAsString(responseMap));
+            return resp;
         }
 
         String data = requestMap.get("data");
@@ -103,8 +111,15 @@ public class SparkInitializer {
         Map<String, String> responseMap = new HashMap<>();
         try {
             requestMap = mapper.readValue(body, Map.class);
-        } catch (JsonMappingException ex) {
-            LOG.error("JSON mapping error. " + ex);
+        } catch (JsonMappingException | JsonParseException ex) {
+            LOG.error("Request JSON error. " + ex);
+            responseMap.put("result", ex.getMessage());
+            responseMap.put("processor", "N/A");
+            responseMap.put("status", "ERR");
+            responseMap.put("time", "N/A");
+            resp.status(400);
+            resp.body(mapper.writeValueAsString(responseMap));
+            return resp;
         }
 
         String data = requestMap.get("data");
@@ -158,7 +173,6 @@ public class SparkInitializer {
                 duration = System.currentTimeMillis() - timeStart;
                 LOG.info("Request: " + body + " processed in " + duration + " ms.");
                 responseMap.put("processor", Xalan.getVersion());
-                responseMap.put("result", tmp);
                 responseMap.put("time", Long.toString(duration));
                 resp.body(mapper.writeValueAsString(responseMap));
                 return resp;
@@ -174,17 +188,24 @@ public class SparkInitializer {
     private static final Route xsltHandler = (Request req, Response resp) -> {
         String body = req.body();
         ObjectMapper mapper = new ObjectMapper();
-        Map<String, String> jsonMap = new HashMap<>();
+        Map<String, String> requestMap = new HashMap<>();
         Map<String, String> responseMap = new HashMap<>();
         try {
-            jsonMap = mapper.readValue(body, Map.class);
-        } catch (JsonMappingException ex) {
-            LOG.error("JSON mapping error. " + ex);
+            requestMap = mapper.readValue(body, Map.class);
+        } catch (JsonMappingException | JsonParseException ex) {
+            LOG.error("Request JSON error. " + ex);
+            responseMap.put("result", ex.getMessage());
+            responseMap.put("processor", "N/A");
+            responseMap.put("status", "ERR");
+            responseMap.put("time", "N/A");
+            resp.status(400);
+            resp.body(mapper.writeValueAsString(responseMap));
+            return resp;
         }
-        String data = jsonMap.get("data");
-        String query = jsonMap.get("process");
-        String processor = jsonMap.get("processor");
-        String version = jsonMap.get("version");
+        String data = requestMap.get("data");
+        String query = requestMap.get("process");
+        String processor = requestMap.get("processor");
+        String version = requestMap.get("version");
 
         if (processor == null) {
             return "saxon, xalan";
diff --git a/Backend/xslt-rest/src/main/java/com/r11/tools/xslt/processors/Xalan.java b/Backend/xslt-rest/src/main/java/com/r11/tools/xslt/processors/Xalan.java
index 42db619..85fb7e7 100644
--- a/Backend/xslt-rest/src/main/java/com/r11/tools/xslt/processors/Xalan.java
+++ b/Backend/xslt-rest/src/main/java/com/r11/tools/xslt/processors/Xalan.java
@@ -1,8 +1,12 @@
 package com.r11.tools.xslt.processors;
 
+import net.sf.saxon.lib.RawResult;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
+import org.apache.xpath.XPathAPI;
 import org.w3c.dom.Document;
+import org.w3c.dom.Node;
+import org.w3c.dom.traversal.NodeIterator;
 import org.xml.sax.InputSource;
 
 import javax.xml.XMLConstants;
@@ -19,8 +23,7 @@ import javax.xml.xpath.XPath;
 import javax.xml.xpath.XPathConstants;
 import javax.xml.xpath.XPathExpression;
 import javax.xml.xpath.XPathFactory;
-import java.io.StringReader;
-import java.io.StringWriter;
+import java.io.*;
 
 /**
  * Handler for Xalan engine
@@ -53,25 +56,55 @@ public class Xalan {
         return sw.toString();
     }
 
+    private static boolean isTextNode(Node n) {
+        if (n == null)
+            return false;
+        short nodeType = n.getNodeType();
+        return nodeType == Node.CDATA_SECTION_NODE || nodeType == Node.TEXT_NODE;
+    }
+
     /**
      * Process xpath and return either node or wrapped atomic value
-     * @deprecated
-     * Xalan needs assumption of the outcome, which is not implemented. Therefore method is deprecated
      * @param data xml
      * @param transform xpath
      * @return xml processed using given xpath
      * @throws Exception thrown on node building errors or invalid xpath
      */
-    public static String processXPath(String data, String transform) throws Exception{
-        DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
-        DocumentBuilder builder = factory.newDocumentBuilder();
+    public static String processXPath(String data, String transform) throws Exception {
 
-        XPath xpath = XPathFactory.newInstance().newXPath();
+        // Set up a DOM tree to query.
+        InputSource in = new InputSource(new StringReader(data));
+        DocumentBuilderFactory dfactory = DocumentBuilderFactory.newInstance();
+        dfactory.setNamespaceAware(true);
+        Document doc = dfactory.newDocumentBuilder().parse(in);
 
-        xpath.setNamespaceContext(new XalanNamespaceResolver(builder.parse(new InputSource(new StringReader(data))), true));
-        XPathExpression exp = xpath.compile(transform);
-        exp.evaluate(new InputSource(new StringReader(data)), XPathConstants.NODESET);
-        return exp.evaluate(new InputSource(new StringReader(data)));
+        // Set up an identity transformer to use as serializer.
+        Transformer serializer = TransformerFactory.newInstance().newTransformer();
+        serializer.setOutputProperty(OutputKeys.OMIT_XML_DECLARATION, "yes");
+
+        // Use the simple XPath API to select a nodeIterator.
+        NodeIterator nl = XPathAPI.selectNodeIterator(doc, transform);
+
+        // Serialize the found nodes to result object.
+        StringBuilder result = new StringBuilder();
+        Node n;
+        while ((n = nl.nextNode())!= null) {
+            StringBuilder sb;
+            if (isTextNode(n)) {
+                // DOM may have more than one node corresponding to a
+                // single XPath text node.  Coalesce all contiguous text nodes
+                // at this level
+                for (Node nn = n.getNextSibling(); isTextNode(nn); nn = nn.getNextSibling()) {
+                    result.append(nn.getNodeValue());
+                }
+            } else {
+                ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
+                serializer.transform(new DOMSource(n), new StreamResult(new OutputStreamWriter(outputStream)));
+                result.append(outputStream);
+            }
+            result.append("\n");
+        }
+        return result.toString();
     }
 
     /**
diff --git a/Frontend/assets/css/mock-service/common.css b/Frontend/assets/css/mock-service/common.css
deleted file mode 100644
index 0c7e754..0000000
--- a/Frontend/assets/css/mock-service/common.css
+++ /dev/null
@@ -1,6 +0,0 @@
-@import url('https://necolas.github.io/normalize.css/8.0.1/normalize.css');
-@import url('r11addons.css');
-@import url('r11tables.css');
-@import url('r11tool.css');
-@import url('r11tooltip.css');
-@import url('r11modal.css');
diff --git a/Frontend/assets/css/mock-service/main.css b/Frontend/assets/css/mock-service/main.css
deleted file mode 100644
index 2f8c9ff..0000000
--- a/Frontend/assets/css/mock-service/main.css
+++ /dev/null
@@ -1,4 +0,0 @@
-.overflowedTableContent {
-    max-height: 750px;
-    overflow: scroll;
-}
\ No newline at end of file
diff --git a/Frontend/assets/css/mock-service/r11addons.css b/Frontend/assets/css/mock-service/r11addons.css
deleted file mode 100644
index afb4425..0000000
--- a/Frontend/assets/css/mock-service/r11addons.css
+++ /dev/null
@@ -1,59 +0,0 @@
-.modification-button.btn-tile:hover {
-    color: #ca1111;
-}
-
-.modification-button.btn-tile {
-    width: 10%;
-    margin: 20% 0 0 0;
-    font-size: 14px;
-    color: #00000020
-}
-
-.modification-button.btn-addtile {
-    font-size: 38px;
-    color: #00000030;
-}
-
-.modification-button.btn-addtile:hover {
-    color: #58ac43;
-}
-
-.tile {
-    width: 100%;
-    padding-top: 40%;
-    border: 1px solid gray;
-    border-radius: 3px;
-    position: relative;
-    background: #f0f0f095;
-    margin-bottom: 10px;
-    cursor: default;
-}
-
-.tile:hover {
-    filter: brightness(110%);
-}
-
-.tile.active {
-    background: #00000070;
-    color: white;
-    filter: none;
-}
-
-.tile.active .btn-tile {
-    opacity: 0;
-}
-
-.tile .content {
-    position: absolute;
-    left: 0;
-    top: 0;
-    bottom: 0;
-    right: 0;
-    padding: 0 2% 0 7%;
-    display: flex;
-}
-
-.content p {
-    margin: 0;
-    padding: 0;
-}
diff --git a/Frontend/assets/css/mock-service/r11modal.css b/Frontend/assets/css/mock-service/r11modal.css
deleted file mode 100644
index 7848a43..0000000
--- a/Frontend/assets/css/mock-service/r11modal.css
+++ /dev/null
@@ -1,104 +0,0 @@
-#overlay {
-  position: fixed;
-  left: 0;
-  right: 0;
-  top: 0;
-  bottom: 0;
-  opacity: 0;
-  background: rgba(0, 0 , 0, 0.5);
-  pointer-events: none;
-}
-
-#overlay.active {
-	pointer-events: all;
-	opacity: 1;
-}
-
-.modal {
-	display: none;
-	width: 390px;
-	min-height: 71px;
-	max-height: 700px;
-	position: fixed;
-	top: 50%;
-	left: 50%;
-	transform: translate(-50%, -50%);
-	background: white;
-	padding: 5px;
-	border: 1px solid #f0f0f0;
-}
-
-.modal.active {
-	display: block;
-}
-
-.modal div.header {
-	width: 384px;
-	height: 24px;
-	background: #2e3133;
-	color: white;
-	font-size: 24px;
-	font-weight: 700;
-	padding: 3px;
-	margin-bottom: 5px;
-	display: flex;
-	justify-content: space-between;
-	align-items: center;
-}
-
-.modal div.header button {
-	font-size: 100%;
-	font-family: inherit;
-	border: 0;
-	padding: 0;
-	background: 0;
-	color: inherit;
-	cursor: pointer;
-}
-
-.modal div.header button:hover {
-	color: white;
-	font-weight: 700;
-}
-
-.modal div.body {
-	width: 370px;
-	padding: 10px;
-	background: #f0f0f0;
-	color: #2e3133;
-	min-height: 16px;
-	text-align: justify;
-	font-size: 16px;
-}
-
-.modal div.function {
-	width: 385px;
-	min-height: 30px;
-	padding-top: 5px;
-	display: flex;
-	justify-content: space-evenly;
-	background: inherit;
-}
-
-.modal div.function button {
-	min-height: 22px;
-	min-width: 34px;
-	max-width: 74px;
-	padding: 3px 20px;
-	outline: none;
-	border: 1px solid #f0f0f0;
-	background: rgba(205,205,205,1);
-	font-size: 16px;
-	text-align: center;
-	cursor: pointer;
-}
-
-.modal div.function button:hover {
-	filter: brightness(110%);
-}
-
-.r-exclamation:before {
-	content: '!';
-	color: #3bc4f1;
-	font-style: normal;
-}
diff --git a/Frontend/assets/css/mock-service/r11tables.css b/Frontend/assets/css/mock-service/r11tables.css
deleted file mode 100644
index 0a680ab..0000000
--- a/Frontend/assets/css/mock-service/r11tables.css
+++ /dev/null
@@ -1,71 +0,0 @@
-.table-map {
-    width: 60%;
-}
-
-.table-map input{
-    font-size: 16px;
-    padding: 7px;
-    border: 1px solid rgba(145, 146, 146, 0.849);
-    border-radius: 5px;
-}
-
-.table-map input.key {
-    background: #f0f0f0;
-}
-
-.modification-button.btn-add {
-    font-size: 16px;
-    color: #00000030;
-    margin: auto 0 auto 0;
-}
-
-.modification-button.btn-add:hover {
-    color:#58ac43;
-}
-
-.modification-button.btn-hashmap {
-    font-size: 16px;
-    color: #00000030;
-    margin: auto 0 auto 0;
-}
-
-.modification-button.btn-hashmap:hover {
-    color: #ca1111;
-}
-
-.table-default {
-    width: 80%;
-    border-collapse: collapse;
-    border-spacing: 0;
-}
-
-.table-default tr {
-    background: #f0f0f02d;
-}
-
-.table-default tr.bottom-border {
-    border-bottom: 1px solid black;
-}
-
-.table-default th {
-    background: #ffffff;
-}
-
-.table-default tr.even {
-    background: #f0f0f0;
-}
-
-.table-doc td, .table-doc th{
-    border-spacing: 0px;
-    padding: 0px 10px;
-}
-
-.table-doc td {
-    background-color: rgba(155, 165, 160, 0.342);
-}
-
-.table-doc th {
-    background-color: #3bc4f1;
-    text-align: left;
-    color: white;
-}
\ No newline at end of file
diff --git a/Frontend/assets/css/mock-service/r11tool.css b/Frontend/assets/css/mock-service/r11tool.css
deleted file mode 100644
index 2243166..0000000
--- a/Frontend/assets/css/mock-service/r11tool.css
+++ /dev/null
@@ -1,300 +0,0 @@
-@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@300;400;700&display=swap');
-.hyperlink, .hyperlink:visited, .hyperlink:active {
-    color: rgb(47, 125, 146);
-    cursor: pointer;
-}
-
-.hyperlink:hover {
-    filter: brightness(120%);
-}
-
-.bordered-field {
-    border: 2px solid rgba(93, 99, 96, 0.705);
-    border-radius: 5px;
-    padding: 8px;
-    
-}
-
-.bordered-field:focus {
-    outline: none;
-    box-shadow: 0 0 5px rgba(81, 203, 238);
-    border: 2px solid #00000070;
-}
-
-.bordered-field:disabled {
-    background: #eeeeeed2;
-}
-
-.vertically-resizeable {
-    resize: vertical;
-}
-
-body {
-    font-family: 'Nunito', sans-serif;
-}
-
-.container {
-    display: flex;
-    justify-content: left;
-    width: 100%;
-}
-
-.tool {
-    width: 55%;
-    display: flex;
-    justify-content: space-evenly;
-}
-
-.tool.extended {
-    width: 65%;
-}
-
-.tool .tool-context {
-    width: 90%;
-}
-
-.tool.extended .tool-context {
-    width: 75%;
-}
-
-.tool.extended .tool-extention {
-    width: 20%;
-    padding-top: 2%;
-    display: block;
-}
-
-.tool .tool-extention {
-    display: none;
-}
-
-.tool-extention {
-    opacity: 0;
-    pointer-events: none;
-}
-
-.tool-extention.active {
-    opacity: 100%;
-    pointer-events: all;
-}
-
-.clickable-text {
-    padding: 0;
-    outline: none;
-    background: none;
-    border: none;
-    font-weight: 300;
-    cursor: pointer;
-}
-
-.clickable-text.highlight:hover {
-    color: #3bc4f1;
-}
-
-.clickable-text.switch {
-    font-size: 18px;
-    font-weight: 700;
-}
-
-.clickable-text.switch span.toggleIndicator:before {
-    content: '>';
-}
-
-.clickable-text.switch span.toggleIndicator.active:before {
-    content: 'v';
-}
-
-.modification-button {
-    padding: 0;
-    outline: none;
-    background: none;
-    border: none;
-    font-weight: 300;
-}
-
-.text-aligned-to-right {
-    text-align: right;
-}
-
-.centered-vertically {
-    margin-top: auto;
-    margin-bottom: auto;
-}
-
-.display-space-between {
-    width: 100%;
-    display: flex;
-    justify-content: space-between;
-}
-
-.display-space-evenly {
-    display: flex;
-    justify-content: space-evenly;
-}
-
-.float-left {
-    display: flex;
-    justify-content: left;
-    width: 100%;
-}
-
-.version-span {
-    font-size: 13px;
-    font-weight: 400;
-    color: rgba(85,85,85,0.555);
-}
-
-.block-display {
-    display: block;
-}
-
-.block-label {
-    display: block;
-    margin: 0 0 0 5px;
-}
-
-.tabmenu {
-    display: flex;
-    flex-direction: row;
-    text-align: center;
-    border-bottom: 1px solid rgba(185, 185, 185, 0.5);
-}
-
-.tabitem {
-    flex-grow: 1;
-    cursor: pointer;
-    padding: 5px 0;
-}
-
-.tabitem:hover {
-    font-weight: 700;
-}
-
-.tabitem.active {
-    background: rgba(33, 34, 34, 0.705);
-    color: white;
-    font-weight: 700;
-    cursor:default;
-    flex-grow: 1;
-}
-
-.big-font {
-    font-size: 20px;
-}
-
-.action-button.active {
-    background: #3bc4f1;
-    border: 1px solid #7ed0eb;
-    cursor: pointer;
-}
-
-.action-button.active:hover {
-    filter: brightness(110%);
-}
-
-.action-button {
-    background: rgba(155, 165, 160, 0.507);
-    border:1px solid rgba(186, 197, 191, 0.507);
-    color: white;
-    padding: 10px 20px;
-    font-weight: 700;
-    margin: 3px 0;
-}
-
-.quater-width {
-    width: 25%;
-}
-
-.half-width {
-    width: 50%;
-}
-
-.tree-fourth-width {
-    width: 75%;
-}
-
-.half-width.with-padding {
-    width: 45%;
-}
-
-.max-width {
-    width: 100%;
-}
-
-.max-width.with-padding {
-    width: 94%;
-}
-
-.max-height {
-    height: 100%;
-}
-
-.height-300 {
-    height: 300px;
-}
-
-.max-height.with-padding {
-    height: 90%;
-}
-
-.small-margins {
-    margin: 3%;
-}
-
-.small-vertical-margin {
-    margin-top: 10px;
-    margin-bottom: 10px;
-}
-
-.medium-vertical-margin {
-    margin-top: 30px;
-    margin-bottom: 30px;
-}
-
-.large-vertical-margin {
-    margin-top: 50px;
-    margin-bottom: 50px;
-}
-
-.textarea-300 {
-    height: 300px;
-}
-
-.centered-content {
-    display: flex;
-    justify-content: center;
-}
-
-
-.tabcontent {
-    display: none;
-}
-
-.tabcontent.active {
-    display: flex;
-    justify-content: center;
-}
-
-.hiddable {
-    display: none;
-}
-
-.hiddable.active {
-    display: inherit;
-}
-
-/* In case of collision with classes that use 'active' */
-.hidden {
-    display: none;
-}
-
-/* TODO: Add proper class */
-/* textarea {
-	-webkit-box-sizing: border-box;
-	-moz-box-sizing: border-box;
-	box-sizing: border-box;
-} */
-
-/* TODO: Add proper class */
-/* code{
-    line-height: 150%;
-} */
\ No newline at end of file
diff --git a/Frontend/assets/css/mock-service/r11tooltip.css b/Frontend/assets/css/mock-service/r11tooltip.css
deleted file mode 100644
index 34fcbfb..0000000
--- a/Frontend/assets/css/mock-service/r11tooltip.css
+++ /dev/null
@@ -1,77 +0,0 @@
-.tooltip-window {
-    position: fixed;
-    right: 0;
-    filter: drop-shadow(-2px 0px 2px darkgray);
-    background: #e8f3f7;
-    padding: 15px 30px;
-    font-family: 'Nunito', sans-serif;
-    width: 40%;
-    height: 100%;
-    overflow: scroll;
-}
-
-.tooltip-window.lite {
-    width: 30%;
-}
-
-.tip {
-    display: none;
-}
-
-.tip.active {
-    display: block;
-}
-
-/* TODO: Remove !important. It's bad practice and it can cause errors in future */
-.section-button {
-    width: 100%;
-    padding: 15px 0;
-    font-size: 18px;
-    background: #b4b4b4c5;
-    cursor: pointer;
-    border-bottom: darkgray 2px solid !important;
-}
-
-.section-button:hover {
-    backdrop-filter: brightness(110%); 
-}
-
-.section-button .active {
-    background: #00000030;
-}
-
-.List .collapsibleContent {
-    border-left: #bdc5c9 2px solid;
-    overflow: hidden;
-    background: #ffffff50;
-}
-
-/* TODO: .section class is to generic. It should be renamed */
-.section{
-    padding: 10px 0px 20px 0px ;
-}
-
-/* TODO: content subclass already in use. Creating content class overrides the subclass.
-Make .content a subclass of .content */
-/* .content {
-    padding: 0px 15px 0px 15px ;
-    text-align: justify;
-    overflow: hidden;
-    transition: max-height .2s ease-out;
-    max-height: 0px;
-    border-left: #c0c2c3 2px solid;
-    
-} */
-
-.collapsibleMini::before{
-    content: "►";
-}
-
-.collapsibleMini.active::before{
-    content: "▼";
-}
-
-/* TODO: Add proper class */
-/* button:hover{
-    filter: brightness(110%);
-} */
\ No newline at end of file
diff --git a/Frontend/assets/scripts/tools/scripts.js b/Frontend/assets/scripts/tools/scripts.js
index 23818b3..085cd1a 100644
--- a/Frontend/assets/scripts/tools/scripts.js
+++ b/Frontend/assets/scripts/tools/scripts.js
@@ -105,8 +105,11 @@ function performRequest(text, checkXML, checkTransform){
 //Form REST request, send, receive and display in resultArea
 async function restRequest(text) {
     const escapeChar = "specialEscapeChar";
-    // const addr = "http://localhost:8081/" + text;
-    const addr = window.location.protocol + "//" + window.location.hostname + ":8081/" + text;
+    var port = ":8081/"
+    if (getProcessor() == "libxml") {
+        port = ":8082/"
+    }
+    const addr = window.location.protocol + "//" + window.location.hostname + port + text;
     
     var xmlData = document.getElementById("xmlArea").value.trim();
     var transformData = document.getElementById("transformArea").value.trim();
diff --git a/Frontend/tools/xpath.html b/Frontend/tools/xpath.html
index 3d0a6b3..c7ed0a9 100644
--- a/Frontend/tools/xpath.html
+++ b/Frontend/tools/xpath.html
@@ -24,13 +24,15 @@
                         <label for="processors">Select XPath processor:</label>
                         <select name="processors" id="processors">
                             <option value="saxon">Saxon</option>
-                            <!-- <option value="xalan">Xalan</option> -->
+                            <option value="xalan">Xalan</option>
+                            <option value="libxml">libXML</option>
                         </select>
                         <label for="versions">XPath version:</label>
                         <select name="versions" id="versions">
-                            <option value="2.0">1.0/2.0</option>
-                            <option value="3.0">3.0</option>
-                            <option value="3.1">3.1</option>
+                            <option class="hideable libxml xalan"value="1.0">1.0</option>
+                            <option class="hideable saxon" value="2.0">2.0</option>
+                            <option class="hideable saxon" value="3.0">3.0</option>
+                            <option class="hideable saxon" value="3.1">3.1</option>
                         </select>
                     </div>
                     <button class="action-button active" id="defaultXMLButton" style="padding: 3px 10px;"
@@ -3066,6 +3068,31 @@
 
 
     <script>
+        function processVersionSelector() {
+            var processor = getProcessor();
+            var hideableOptions = document.getElementsByClassName("hideable");
+            for (let i = 0; i < hideableOptions.length; i++) {
+               hideableOptions[i].style = "display: none;";
+            }
+            if (processor == "xalan" || processor == "libxml") {
+                var xalanOptions = document.getElementsByClassName("xalan");
+                for (let i = 0; i < xalanOptions.length; i++) {
+                    xalanOptions[i].style = "";
+                }
+                document.getElementById("versions").selectedIndex = 0;
+            }
+            else {
+                var saxonOptions = document.getElementsByClassName("saxon");
+                for (let i = 0; i < saxonOptions.length; i++) {
+                    saxonOptions[i].style = "";
+                }
+                document.getElementById("versions").selectedIndex = 3;
+                
+            }
+            processTooltip();
+
+        }
+
         function processTooltip() {
             var filter = "collapse" + getVersion();
             var collList;
@@ -3086,6 +3113,9 @@
                 hideList(document.getElementsByName("collapse30"));
                 hideList(document.getElementsByName("collapse31"));
             }
+
+
+
             // if (checkDefault(document.getElementById("xmlArea").value.trim()) || document.getElementById("xmlArea").value.trim() == "") {
             //     document.getElementById("defaultXMLButton").classList.toggle("active", true);
             // } else {
@@ -3175,6 +3205,7 @@
             setDefaultContent(document.getElementById("transformArea"), 'Insert XPath expression here');
             console.log("init");
             processTooltip();
+            processVersionSelector();
             tool.addEventListener('change', event => {
                 //Check if script was called from textarea or selector
                 var targetID = event.target.getAttribute('id');
@@ -3182,6 +3213,7 @@
                     return;
                 }
                 processTooltip();
+                processVersionSelector();
             })
             tool.addEventListener('click', event => {
                 //Check if script was called from textarea or selector
@@ -3190,6 +3222,7 @@
                     return;
                 }
                 processTooltip();
+                processVersionSelector();
             })
             tool.addEventListener('change', event => {
                 //Check if script was called from textarea or selector
@@ -3198,6 +3231,7 @@
                     return;
                 }
                 processTooltip();
+                processVersionSelector();
             })
         }
     </script>
diff --git a/Frontend/tools/xsd.html b/Frontend/tools/xsd.html
index 3e61029..84234bf 100644
--- a/Frontend/tools/xsd.html
+++ b/Frontend/tools/xsd.html
@@ -18,8 +18,8 @@
                 </div>
                 <label for="processors">Select XSLT processor:</label>
                 <select name="processors" id="processors">
-                    <!-- <option value="saxon">Saxon</option> -->
                     <option value="xalan">Xalan</option>
+                    <option value="libxml">libXML</option>
                 </select>
                 <!-- <span id="processorTooltipInfo">procInfo</span><br> -->
                 <br>
diff --git a/Frontend/tools/xslt.html b/Frontend/tools/xslt.html
index cc77f34..131fd3a 100644
--- a/Frontend/tools/xslt.html
+++ b/Frontend/tools/xslt.html
@@ -19,6 +19,7 @@
                 <select name="processors" id="processors">
                     <option value="saxon">Saxon</option>
                     <option value="xalan">Xalan</option>
+                    <option value="libxml">libXML</option>
                 </select>
                 <span id="processorTooltipInfo">procInfo</span><br>
                 <br>
@@ -1130,7 +1131,7 @@
             console.log("processTooltip");
 
 
-            if (getProcInfo() == "xalan") {
+            if (getProcInfo() == "xalan" || getProcInfo() == "libxml") {
                 document.getElementById("tooltipFunctionInfo").innerText = "XSLT 1.0 functions";
                 document.getElementById("processorTooltipInfo").innerText = "Supports XSLT 1.0";
                 hideList(document.getElementsByName("collapse30"));
diff --git a/docker-compose.yml b/docker-compose.yml
index 559be61..6524db5 100644
--- a/docker-compose.yml
+++ b/docker-compose.yml
@@ -19,6 +19,13 @@ services:
         ports:
         - 8081:8081
 
+    xmltools-libxml-backend:
+        build: ./Backend-libXML
+        container_name: xmltools-libxml-backend
+        image: xmltools-libxml-backend
+        ports:
+        - 8082:80
+
     xmltools-mocked-services:
         build:
             context: ./Backend/mocked-services
diff --git a/readme.md b/readme.md
index d5600b6..c1a3e1b 100644
--- a/readme.md
+++ b/readme.md
@@ -17,6 +17,11 @@ openapi.yml
 Rest API accepts xml documents, given querry and processor version to call requested xml engine to perform given
 operation and finally returns outcome in response body.
 
+## Flask Python backend
+
+This is module providing support for processing XMLs using libxml library. It consumes same JSON as Java backend.
+
+
 ## Mocked services
 MockedServices is a tool that allows developer to create, in easy and simple way, http server mocked endpoints for integration tests