diff --git a/src/app.py b/src/app.py
index 1af8e26..dd03d13 100644
--- a/src/app.py
+++ b/src/app.py
@@ -108,6 +108,44 @@ def deleteList():
     except:
         return str('item not found in list'), 400
 
+@app.route('/app/change-list-name', methods=['POST'])
+def changeListName():
+    data = request.get_json()
+    name = data.get('name')
+    uuid = data.get('uuid')
+    try:
+        change_list_name(uuid, name)
+        return jsonify({'name changed': uuid}), 200
+    except:
+        return str('error changing name'), 400
+
+@app.route('/app/change-list-description', methods=['POST'])
+def changeListDescription():
+    data = request.get_json()
+    description = data.get('description')
+    uuid = data.get('uuid')
+    try:
+        change_list_description(uuid, description)
+        return jsonify({'name changed': uuid}), 200
+    except:
+        return str('error changing description'), 400
+
+@app.route('/app/change-list-content', methods=['POST'])
+def changeListContent():
+    data = request.get_json()
+    uuid = data.get('uuid')
+    new = data.get('content')
+    try:
+        remove_all_from_list(uuid)
+        if len(new)>0 :
+            for item in new.split('#'):
+                add_to_list(uuid, item)
+        return jsonify({'content changed': uuid}), 200
+    except:
+        return str('error changing content'), 400
+
+
+
 @app.route('/app/datahistory',methods = ['GET'])
 def data_history_request():
     if request.method == 'GET':
@@ -142,11 +180,17 @@ def data_history_request_filtered():
         lists_uuid = []
     return jsonify(get_history_filtered(lists_uuid))
 
-@app.route('/app/datalist',methods = ['GET'])
+@app.route('/app/datalist',methods = ['GET', 'POST'])
 def data_list_request():
     if request.method == 'GET':
         print("fetching data item")
         return jsonify(get_lists())
+    elif request.method == 'POST':
+        data = request.get_json()
+        list_uuid = data.get('uuid')
+        details = get_list(list_uuid)
+        return jsonify(details), 200
+
 
 if __name__ == '__main__':
    app.run(debug = True)
diff --git a/src/db.py b/src/db.py
index a126a5a..841de49 100644
--- a/src/db.py
+++ b/src/db.py
@@ -304,6 +304,19 @@ def remove_from_list(list_uuid, item_uuid):
     connection.commit()
     connection.close()
 
+def remove_all_from_list(list_uuid):
+    '''remove every items from an itemlist'''
+    connection = connect_db()
+    cursor = connection.cursor()
+    cursor.execute("""
+    DELETE
+    FROM listcontent
+    WHERE list_uuid = %s
+    """, (list_uuid,))
+    cursor.close()
+    connection.commit()
+    connection.close()
+
 def get_lists():
     connection = connect_db()
     cursor = connection.cursor()
@@ -316,6 +329,46 @@ def get_lists():
     connection.close()
     return results
 
+def get_list(list_uuid):
+    '''return details of a single list'''
+    connection = connect_db()
+    cursor = connection.cursor()
+    cursor.execute("""
+    SELECT name, description
+    FROM itemlist
+    WHERE uuid = %s
+    """, (list_uuid,))
+    results = cursor.fetchall()
+    cursor.close()
+    connection.close()
+    return results[0]
+
+def change_list_name(uuid, name):
+    '''modify itemlist name'''
+    connection = connect_db()
+    cursor = connection.cursor()
+    cursor.execute("""
+    UPDATE itemlist
+    SET name = %s
+    WHERE uuid = %s
+    """, (name, uuid))
+    cursor.close()
+    connection.commit()
+    connection.close()
+
+def change_list_description(uuid, description):
+    '''modify itemlist description'''
+    connection = connect_db()
+    cursor = connection.cursor()
+    cursor.execute("""
+    UPDATE itemlist
+    SET description = %s
+    WHERE uuid = %s
+    """, (description, uuid))
+    cursor.close()
+    connection.commit()
+    connection.close()
+
 def export_csv():
     '''join item and history data from database and export it in ./output.csv'''
     connection = connect_db()
diff --git a/web/app.html b/web/app.html
index 0906009..153ac81 100644
--- a/web/app.html
+++ b/web/app.html
@@ -60,7 +60,7 @@
     <button id="create_list_add" type="button" class="btn btn-secondary">add</button>
     <button id="create_list_cancel" type="button" class="btn btn-secondary">cancel</button>
     <p>Include items</p>
-    <div id="checkbox-container"></div>
+    <div id="checkbox-container" class="item_checkboxes"></div>
   </div>
 </div>
 
@@ -69,14 +69,18 @@
   <div class="popup-content">
     <p>Modify list</p>
       <div class="dropdown btn-group mr-2" id="modifylist_dropdown">
-          <button type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown">
+          <button id="modify_itemlist_dropdown" type="button" class="btn btn-secondary dropdown-toggle" data-toggle="dropdown">
           Itemlist
           </button>
           <ul id="modify_itemlist_choice" class="dropdown-menu">
           </ul>
       </div>
-  </div>
-  <div id="modifylist_content">
+      <div id="modifylist_content">
+      </div>
+      <div id="modifylist_buttons">
+        <button id="modifylist_ok" type="button" class="btn btn-secondary">ok</button>
+        <button id="modifylist_cancel" type="button" class="btn btn-secondary">cancel</button>
+      </div>
   </div>
 </div>
 
@@ -104,6 +108,7 @@
 
 <!-- Load scripts-->
 <script src="{{ url_for('static', filename='fetch.js') }}"></script>
+<script src="{{ url_for('static', filename='filters_checkboxes.js') }}"></script>
 <script src="{{ url_for('static', filename='popups.js') }}"></script>
 <script src="{{ url_for('static', filename='rendergraphs.js') }}"></script>
 <script src="{{ url_for('static', filename='list.js') }}"></script>
diff --git a/web/app.js b/web/app.js
index b3de43c..8245a7d 100644
--- a/web/app.js
+++ b/web/app.js
@@ -52,28 +52,8 @@ function refresh_graphs() {
 render_graphs_wrapper();
 
 // filters checkboxes
-function filters_checkboxes() {
-    fetch_list().then(function(data){
-        {
-            const node = document.getElementById("filters_checkboxes");
-            while (node.firstChild) {
-                node.removeChild(node.lastChild);
-            }
-        }
-        const node = d3.select("#filters_checkboxes");
-        for (const itemlist of data) {
-            var label = node.append("label");
-            var input = label.append("input")
-                            .attr("type", "checkbox")
-                            .attr("class", "checkbox-filters")
-                            .attr("id", `checkbox-${itemlist.uuid}`);
-            label.append("span")
-                .text(`${itemlist.name}`);
-            node.append("br");
-        }
-    })
-}
 filters_checkboxes()
+
 // listen to filters changes
 var checkedBefore = getCheckedCheckboxIds('.checkbox-filters');
 $(document).ready(function(){
diff --git a/web/fetch.js b/web/fetch.js
index b62a549..dedbc6d 100644
--- a/web/fetch.js
+++ b/web/fetch.js
@@ -181,3 +181,40 @@ async function get_data_filtered(id_array) {
     history_data = await fetch_history_filtered(id_array);
     return Array(items_data, history_data);
 }
+
+async function get_list_details(list_uuid) {
+  try {
+    // SELECT name, description
+    const apiUrl = `${currentUrl}app/datalist`;
+    const postData = {
+        uuid: list_uuid
+    };
+
+    const requestOptions = {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+        },
+        body: JSON.stringify(postData)
+    };
+
+    const response = await fetch(apiUrl, requestOptions)
+            .catch(error => {
+            console.error('Error during POST request:', error);
+            });
+
+    if (response.ok) {
+        const rawData = await response.json();
+        const listData = {
+            name: rawData[0],
+            description: rawData[1],
+        };
+        return listData;
+    } else {
+        throw new Error('Error in server response');
+    }
+  } catch (error) {
+    console.error('Error fetching data item: ', error);
+    throw error;
+  }
+}
diff --git a/web/filters_checkboxes.js b/web/filters_checkboxes.js
new file mode 100644
index 0000000..a3a47eb
--- /dev/null
+++ b/web/filters_checkboxes.js
@@ -0,0 +1,22 @@
+function filters_checkboxes() {
+    console.log("refresh filters");
+    fetch_list().then(function(data){
+        {
+            const node = document.getElementById("filters_checkboxes");
+            while (node.firstChild) {
+                node.removeChild(node.lastChild);
+            }
+        }
+        const node = d3.select("#filters_checkboxes");
+        for (const itemlist of data) {
+            var label = node.append("label");
+            var input = label.append("input")
+                            .attr("type", "checkbox")
+                            .attr("class", "checkbox-filters")
+                            .attr("id", `checkbox-${itemlist.uuid}`);
+            label.append("span")
+                .text(`${itemlist.name}`);
+            node.append("br");
+        }
+    })
+}
diff --git a/web/list.js b/web/list.js
index ffebeb0..07125e5 100644
--- a/web/list.js
+++ b/web/list.js
@@ -23,3 +23,85 @@ async function delItemlist(uuid) {
         throw new Error('Error in server response');
     }
 }
+
+async function changeListName(uuid, new_name) {
+    const apiUrl = `${currentUrl}app/change-list-name`;
+    const postData = {
+        uuid: uuid,
+        name: new_name,
+    };
+
+    const requestOptions = {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+        },
+        body: JSON.stringify(postData)
+    };
+
+    const response = await fetch(apiUrl, requestOptions)
+            .catch(error => {
+            console.error('Error during POST request:', error);
+            });
+
+    if (response.ok) {
+        console.log(response);
+    } else {
+        throw new Error('Error in server response');
+    }
+}
+
+async function changeListDescription(uuid, new_description) {
+    const apiUrl = `${currentUrl}app/change-list-description`;
+    const postData = {
+        uuid: uuid,
+        description: new_description,
+    };
+
+    const requestOptions = {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+        },
+        body: JSON.stringify(postData)
+    };
+
+    const response = await fetch(apiUrl, requestOptions)
+            .catch(error => {
+            console.error('Error during POST request:', error);
+            });
+
+    if (response.ok) {
+        console.log(response);
+    } else {
+        throw new Error('Error in server response');
+    }
+}
+
+async function changeListContent(uuid, new_content) {
+    const apiUrl = `${currentUrl}app/change-list-content`;
+    const content = new_content.join('#');
+    const postData = {
+        uuid: uuid,
+        content: content,
+    };
+
+    const requestOptions = {
+        method: 'POST',
+        headers: {
+            'Content-Type': 'application/json',
+        },
+        body: JSON.stringify(postData)
+    };
+
+    const response = await fetch(apiUrl, requestOptions)
+            .catch(error => {
+            console.error('Error during POST request:', error);
+            });
+
+    if (response.ok) {
+        console.log(response);
+    } else {
+        throw new Error('Error in server response');
+    }
+}
diff --git a/web/popups.js b/web/popups.js
index e510a44..77c3cb6 100644
--- a/web/popups.js
+++ b/web/popups.js
@@ -50,8 +50,6 @@ document.getElementById("create_list_cancel").addEventListener("click", function
             createListPopup.style.display = 'none';
         });
 
-// modify list
-
 // delete list
 document.getElementById("delete_list").addEventListener("click", function () {
       // remove div content
@@ -79,11 +77,11 @@ document.getElementById("delete_list").addEventListener("click", function () {
       deleteListPopup.style.display = 'flex';
 });
 // confirm delete list
-document.getElementById("delete_list_ok").addEventListener("click", function () {
+document.getElementById("delete_list_ok").addEventListener("click", async function () {
             const checked_delete = getCheckedCheckboxIds('.checkbox-delete-list');
             const id_array = checked_delete.map(str => str.substring(9));
             for (const uuid of id_array) {
-              delItemlist(uuid);
+              await delItemlist(uuid);
             }
             // refresh filters checkboxes
             filters_checkboxes();
@@ -95,11 +93,16 @@ document.getElementById("delete_list_cancel").addEventListener("click", function
         });
 
 // modify list popup
+var previous_modify = Object();
 document.getElementById("modify_list").addEventListener("click", function () {
       generate_modifylist_buttons();
       //
       modifyListPopup.style.display = 'flex';
 });
+// cancel list modify
+document.getElementById("modifylist_cancel").addEventListener("click", function () {
+            modifyListPopup.style.display = 'none';
+        });
 function generate_modifylist_buttons() {
     // remove div content
       const node = document.getElementById("modify_itemlist_choice");
@@ -125,24 +128,36 @@ function generate_modifylist_buttons() {
       });
 }
 async function toggle_modify(itemlist_uuid) {
-      //   <div id="modifylist_content">
-      // <input id="listName" type="text" placeholder="name">
-      //     <input id="listDescription" type="text" placeholder="description">
-      //     <button id="create_list_add" type="button" class="btn btn-secondary">add</button>
-      //     <button id="create_list_cancel" type="button" class="btn btn-secondary">cancel</button>
-      //     <p>Include items</p>
-      //     <div id="checkbox-container"></div>
       // remove div content
       const node = document.getElementById("modifylist_content");
       while (node.firstChild) {
           node.removeChild(node.lastChild);
       }
-      // input name
-      // input description
-      // content
+      // new content
+      previous_modify.uuid = itemlist_uuid;
       const existing_content = Object.keys(await fetch_item_filtered([itemlist_uuid]));
+      previous_modify.content = existing_content;
+      const list_data = await get_list_details(itemlist_uuid);
       const modify_content = d3.select("#modifylist_content");
-      const checkboxContainer = modify_content.append("div");
+      // dropdown menu text
+      document.getElementById("modify_itemlist_dropdown").innerHTML = `${list_data.name}`;
+      // input name
+      previous_modify.name = list_data.name;
+      const input_name = modify_content.append("input")
+                                      .attr("type", "text")
+                                      .attr("placeholder", "name")
+                                      .attr("value", `${list_data.name}`)
+                                      .attr("id", `input_name-${itemlist_uuid}`);
+      // input description
+      const input_description = modify_content.append("input")
+                                      .attr("type", "text")
+                                      .attr("placeholder", "description")
+                                      .attr("value", `${list_data.description}`)
+                                      .attr("id", `input_description-${itemlist_uuid}`);
+      previous_modify.description = list_data.description;
+      // content
+      const checkboxContainer = modify_content.append("div")
+                                              .attr("class", "item_checkboxes");
       fetch_item().then(function(data){
           Object.keys(data).forEach(uuid => {
           const item = data[uuid];
@@ -150,7 +165,7 @@ async function toggle_modify(itemlist_uuid) {
 
           const checkbox = div.append("input")
               .attr("type", "checkbox")
-              .attr("class", "checkbox-itemlist")
+              .attr("class", "checkbox-modify-itemlist")
               .attr("id", `checkbox-${uuid}`);
           if (existing_content.includes(`${uuid}`)) {
               checkbox.property("checked", true);
@@ -167,6 +182,35 @@ async function toggle_modify(itemlist_uuid) {
           });
       });
 }
+// confirm list modify
+document.getElementById("modifylist_ok").addEventListener("click", async function () {
+            const uuid = previous_modify.uuid;
+            const new_name = document.getElementById(`input_name-${uuid}`).value;
+            const new_description = document.getElementById(`input_description-${uuid}`).value;
+            const checked = getCheckedCheckboxIds('.checkbox-modify-itemlist');
+            const new_content = checked.map(str => str.substring(9));
+            var diff = false;
+            if (new_name != previous_modify.name) {
+              // name different
+              diff = true;
+              await changeListName(uuid, new_name);
+            }
+            if (new_description != previous_modify.description) {
+              // description different
+              diff = true;
+              await changeListDescription(uuid, new_description);
+            }
+            if (!(new_content.every(item => previous_modify.content.includes(item)) && previous_modify.content.every(item => new_content.includes(item)))) {
+              // content different
+              diff = true;
+              await changeListContent(uuid, new_content);
+            }
+            if (diff) {
+              // refresh filters checkboxes
+              filters_checkboxes();
+            }
+            modifyListPopup.style.display = 'none';
+        });
 
 // delete item, pop-up confirm
 document.addEventListener('DOMContentLoaded', function () {
diff --git a/web/style.css b/web/style.css
index 32b3c85..917c4a4 100644
--- a/web/style.css
+++ b/web/style.css
@@ -42,14 +42,14 @@ body {
   padding: 0px;
 }
 
-#checkbox-container {
+.item_checkboxes {
   max-height: 50%;
   overflow-y: auto;
   display: flex;
   flex-wrap: wrap;
 }
 
-#checkbox-container div {
+.item_checkboxes div {
   margin-bottom: 10px;
   width: calc(50% - 10px);
   display: flex;