diff --git a/CMakeLists.txt b/CMakeLists.txt
index f9128ee..7a7d8f7 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -19,5 +19,6 @@ add_executable(
     src/users/add_user.cpp
     src/users/get_all_users.cpp
     src/users/get_user.cpp
+    src/users/change_user.cpp
 )
 target_link_libraries(auth_service jwt-cpp::jwt-cpp)
diff --git a/src/auth_service.cpp b/src/auth_service.cpp
index 6a8bf91..3ce9ec4 100644
--- a/src/auth_service.cpp
+++ b/src/auth_service.cpp
@@ -17,6 +17,7 @@ int main() {
     srv.Post("/api/users/user/password/change", change_password);
     srv.Post("/api/users/del", delete_user);
     srv.Post("/api/access", user_access);
+    srv.Post("/api/users/user/change", change_user);
 
     srv.set_mount_point("/admin", "../src/web");
     srv.set_mount_point("/js", "../src/web/js");
diff --git a/src/users/change_user.cpp b/src/users/change_user.cpp
new file mode 100644
index 0000000..0028307
--- /dev/null
+++ b/src/users/change_user.cpp
@@ -0,0 +1,80 @@
+#include "users.hpp"
+
+void change_user(const httplib::Request& request, httplib::Response& response) {
+    if (request.body == "") {response.set_content(
+        "{\"required\":\"[token] or if you superuser [token,userid]\",\"optional\":\"[username,password,is_superuser,group]\"}", 
+        "application/json"
+    );return;}
+    nlohmann::json json_body = nlohmann::json::parse(request.body);
+
+    if (json_body["token"] == nullptr) {response.set_content(
+        "{\"required\":\"[token] or if you superuser [token,userid]\",\"optional\":\"[username,password,is_superuser,group]\"}", 
+        "application/json"
+    );return;}
+    if ((json_body["userid"] == nullptr) && (json_body["old_password"] == nullptr)) {
+        response.set_content("{\"required\":\"[token] or if you superuser [token,userid]\",\"optional\":\"[username,password,is_superuser,group]\"}", "application/json");
+        return;
+    }
+    // if (json_body["new_password"] == nullptr) {response.set_content("{\"required\":\"[token] or if you superuser [token,userid]\"}", "application/json");return;}
+    if (!verify_auth(json_body["token"])) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+
+    // std::string old_password = "";
+    // const std::string new_password = json_body["new_password"];
+
+    // if (json_body["userid"] == nullptr) {old_password = json_body["old_password"];}
+
+    jwt::decoded_jwt<jwt::traits::kazuho_picojson> decoded_token = jwt::decode(json_body["token"]);
+    std::string userid = "";
+    for (auto& e : decoded_token.get_payload_json()) {
+        if (e.first == "userId") {
+            userid = e.second.to_str();
+            break;
+        }
+    }
+    if (userid == "") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+
+    std::ifstream usersfile("users.json");
+    nlohmann::json all_users = nlohmann::json::parse(usersfile);
+    usersfile.close();
+
+    std::string changeusruserid = userid;
+    if (json_body["userid"] != nullptr) {
+        changeusruserid = json_body["userid"];
+        nlohmann::json response_user_data = nullptr;
+        for (nlohmann::json& user : all_users) {
+            if (user["id"] == userid) {
+                response_user_data = user;
+            }
+        }
+        if (response_user_data == nullptr) {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+        if (response_user_data["is_superuser"] != "1") {response.set_content("{\"status\":\"403\"}", "application/json");return;}
+    }
+
+    bool found = false;
+    if (json_body["userid"] != nullptr) {
+        for (int i = 0; i < all_users.size(); i++) {
+            if ((all_users[i]["id"] == changeusruserid)) {
+                if (json_body["username"] != nullptr) {all_users[i]["username"] = json_body["username"];}
+                if (json_body["password"] != nullptr) {all_users[i]["password"] = json_body["password"];}
+                if (json_body["group"] != nullptr) {all_users[i]["group"] = json_body["group"];}
+                if (json_body["is_superuser"] != nullptr) {all_users[i]["is_superuser"] = json_body["is_superuser"];}
+                found = true;
+                break;
+            }
+        }
+    } else {
+        for (int i = 0; i < all_users.size(); i++) {
+            if ((all_users[i]["id"] == changeusruserid)) {
+                if (json_body["username"] != nullptr) {all_users[i]["username"] = json_body["username"];}
+                found = true;
+                break;
+            }
+        }
+    }
+    if (!found) {response.set_content("{\"status\":\"can't find this user\"}", "application/json");return;}
+    std::ofstream usersfilew("users.json");
+    usersfilew << all_users.dump(4);
+    usersfilew.close();
+    response.set_content("{\"status\":\"ok\"}", "application/json");
+}
+
diff --git a/src/users/users.hpp b/src/users/users.hpp
index 1affb00..bcf386f 100644
--- a/src/users/users.hpp
+++ b/src/users/users.hpp
@@ -17,5 +17,7 @@ void add_user(const httplib::Request& request, httplib::Response& response);
 void delete_user(const httplib::Request& request, httplib::Response& response);
 // function for change password for user
 void change_password(const httplib::Request& request, httplib::Response& response);
+// function for change user data
+void change_user(const httplib::Request& request, httplib::Response& response);
 
 #endif // USERS_HPP
diff --git a/src/web/css/userstable.css b/src/web/css/userstable.css
index edee8a8..dfef100 100644
--- a/src/web/css/userstable.css
+++ b/src/web/css/userstable.css
@@ -27,7 +27,7 @@ th {
     position: relative;
     border-radius: 10px;
     padding: 10px;
-    width: 16%;
+    width: 14%;
     text-overflow: auto;
     overflow-x: auto;
 }
diff --git a/src/web/index.html b/src/web/index.html
index 3dc2e09..749bb21 100644
--- a/src/web/index.html
+++ b/src/web/index.html
@@ -60,6 +60,32 @@
         </form>
     </div>
 
+    <div class="form changeuserform">
+        <form class="formbody changeuserformbody">
+            <h1 class="loginformheader">Change User Data</h1>
+            <div class="loginforminputbody">
+                <div class="loginformlabel">Username</div>
+                <input type="text" required id="changeuserformusername" class="loginforminput">
+            </div>
+            <div class="loginforminputbody">
+                <div class="loginformlabel">Password</div>
+                <input type="password" id="changeuserformpassword" class="loginforminput">
+            </div>
+            <div class="loginforminputbody">
+                <div class="loginformlabel">Group</div>
+                <input type="text" required id="changeuserformgroup" class="loginforminput">
+            </div>
+            <div class="loginforminputbody">
+                <div class="loginformlabel">Is Superuser</div>
+                <input type="checkbox" id="changeuserformissuperuser" class="loginforminput">
+            </div>
+            <div class="loginforminputbody">
+                <button class="loginformbutton">Change</button>
+                <button class="cancelchangeuser loginformbutton">Cancel</button>
+            </div>
+        </form>
+    </div>
+
     <div class="form confirmform">
         <div class="formbody confirmformbody">
             <h1>Are you sure?</h1>
@@ -98,6 +124,7 @@
                 <th>is_superuser</th>
                 <th>delete</th>
                 <th>change password</th>
+                <th>change user data</th>
             </tr>
         </thead>
     </table>
@@ -114,5 +141,6 @@
     <script src="js/add_user.js"></script>
     <script src="js/del_user.js"></script>
     <script src="js/change_password.js"></script>
+    <script src="js/change_user.js"></script>
 </body>
 </html>
\ No newline at end of file
diff --git a/src/web/js/change_user.js b/src/web/js/change_user.js
new file mode 100644
index 0000000..63a0b7e
--- /dev/null
+++ b/src/web/js/change_user.js
@@ -0,0 +1,57 @@
+const changeuserform = document.querySelector('.changeuserform')
+const changeuserformbody = document.querySelector('.changeuserformbody')
+const changeuserformusername = document.querySelector('#changeuserformusername')
+const changeuserformpassword = document.querySelector('#changeuserformpassword')
+const changeuserformgroup = document.querySelector('#changeuserformgroup')
+const changeuserformissuperuser = document.querySelector('#changeuserformissuperuser')
+const cancelchangeuser = document.querySelector(".cancelchangeuser")
+
+var changedatauserid = ""
+var userdata = ""
+
+const change_user_data = async (userid) => {
+    changeuserform.classList.add('active')
+    changedatauserid = userid
+    console.log(userid)
+    const all_users = await fetch(routes.all_users(), {
+        method: 'POST',
+        body: `{"token":"${localStorage.getItem('token')}"}`
+    }).then(data => data.json()).then(jsondata => jsondata).catch((error) => {
+        notification(`Ошибка на сервере: ${error}`, "error")
+    })
+    userdata = all_users.find(usr => usr.id === userid)
+    console.log(userdata)
+    changeuserformusername.value = userdata.username
+    changeuserformgroup.value = userdata.group
+    console.log(changeuserformissuperuser.checked)
+    changeuserformissuperuser.checked = userdata.is_superuser === "1"?true:false
+}
+
+cancelchangeuser.addEventListener('click', (e) => {
+    e.preventDefault()
+    changeuserform.classList.remove('active')
+})
+
+changeuserformbody.addEventListener('submit', async (e) => {
+    e.preventDefault()
+    var request = {
+        token: localStorage.getItem('token'),
+        userid: changedatauserid,
+        username: changeuserformusername.value,
+        is_superuser: changeuserformissuperuser.checked?"1":"0",
+        group: changeuserformgroup.value
+    }
+    if (changeuserformpassword.value !== "") {request = {...request, "password": changeuserformpassword.value}}
+    const status = await fetch(routes.change_user(), {
+        method: 'POST',
+        body: JSON.stringify(request)
+    }).then(data => data.json()).then(jsondata => jsondata).catch((error) => {
+        notification(`Ошибка на сервере: ${error}`, "error")
+    })
+    console.log(status)
+    if (status.status === "ok") {
+        notification("Данные пользователя успешно изменены", "success")
+        changeuserform.classList.remove('active')
+        get_all_users()
+    }
+})
diff --git a/src/web/js/del_user.js b/src/web/js/del_user.js
index 18ac2ac..50a880b 100644
--- a/src/web/js/del_user.js
+++ b/src/web/js/del_user.js
@@ -13,6 +13,9 @@ userstablebody.addEventListener('click', e => {
     if (e.target.classList.contains('changepassword')) {
         change_password(e.target.id)
     }
+    if (e.target.classList.contains('changeuser')) {
+        change_user_data(e.target.id)
+    }
 })
 
 confirmformcancel.addEventListener('click', () => {
diff --git a/src/web/js/get_all_users.js b/src/web/js/get_all_users.js
index 09d5d4a..c09f419 100644
--- a/src/web/js/get_all_users.js
+++ b/src/web/js/get_all_users.js
@@ -16,6 +16,7 @@ const get_all_users = async () => {
                 <th>${user.is_superuser}</th>
                 <th><button class="deleteuser thbutton" id="${user.id}">Delete</button></th>
                 <th><button class="changepassword thbutton" id="${user.id}">Change password</button></th>
+                <th><button class="changeuser thbutton" id="${user.id}">Change user data</button></th>
             </tr>    
         `
     }
diff --git a/src/web/js/routes.js b/src/web/js/routes.js
index ac97e52..2e42d5b 100644
--- a/src/web/js/routes.js
+++ b/src/web/js/routes.js
@@ -8,5 +8,6 @@ const routes = {
     access: () => [host, prefix, 'access'].join('/'),
     adduser: () => [host, prefix, 'users', 'add'].join('/'),
     deluser: () => [host, prefix, 'users', 'del'].join('/'),
-    change_password_url: () => [host, prefix, 'users', 'user', 'password', 'change'].join('/')
+    change_password_url: () => [host, prefix, 'users', 'user', 'password', 'change'].join('/'),
+    change_user: () => [host, prefix, 'users', 'user', 'change'].join('/')
 }
\ No newline at end of file