diff --git a/web/src/App.js b/web/src/App.js
index 0bd9297e..8c82c845 100644
--- a/web/src/App.js
+++ b/web/src/App.js
@@ -16,8 +16,8 @@ import React, {Component} from "react";
 import "./App.less";
 import {Helmet} from "react-helmet";
 import * as Setting from "./Setting";
-import {BarsOutlined, DownOutlined, LogoutOutlined, SettingOutlined} from "@ant-design/icons";
-import {Avatar, Button, Card, ConfigProvider, Drawer, Dropdown, FloatButton, Layout, Menu, Result} from "antd";
+import {BarsOutlined, DownOutlined, InfoCircleFilled, LogoutOutlined, SettingOutlined} from "@ant-design/icons";
+import {Alert, Avatar, Button, Card, ConfigProvider, Drawer, Dropdown, FloatButton, Layout, Menu, Result} from "antd";
 import {Link, Redirect, Route, Switch, withRouter} from "react-router-dom";
 import OrganizationListPage from "./OrganizationListPage";
 import OrganizationEditPage from "./OrganizationEditPage";
@@ -671,6 +671,9 @@ class App extends Component {
 
     return (
       <React.Fragment>
+        {
+          this.renderBanner()
+        }
         <FloatButton.BackTop />
         <CustomGithubCorner />
         {
@@ -680,6 +683,27 @@ class App extends Component {
     );
   }
 
+  renderBanner() {
+    if (!Conf.IsDemoMode) {
+      return null;
+    }
+
+    return (
+      <Alert type="info" banner showIcon={false} closable message={
+        <div style={{textAlign: "center"}}>
+          <InfoCircleFilled style={{color: "rgb(87,52,211)"}} />
+          &nbsp;&nbsp;
+          {i18next.t("general:Found some texts still not translated? Please help us translate at")}
+          &nbsp;
+          <a target="_blank" rel="noreferrer" href={"https://crowdin.com/project/casdoor-site"}>
+            Crowdin
+          </a>
+          &nbsp;!&nbsp;🙏
+        </div>
+      } />
+    );
+  }
+
   render() {
     return (
       <React.Fragment>
diff --git a/web/src/locales/de/data.json b/web/src/locales/de/data.json
index 1ea158ae..afe2689a 100644
--- a/web/src/locales/de/data.json
+++ b/web/src/locales/de/data.json
@@ -181,6 +181,7 @@
     "First name": "First name",
     "Forget URL": "URL vergessen",
     "Forget URL - Tooltip": "Unique string-style identifier",
+    "Found some texts still not translated? Please help us translate at": "Found some texts still not translated? Please help us translate at",
     "Go to writable demo site?": "Go to writable demo site?",
     "Home": "Zuhause",
     "Home - Tooltip": "Application homepage",
diff --git a/web/src/locales/en/data.json b/web/src/locales/en/data.json
index 92824501..8d70d352 100644
--- a/web/src/locales/en/data.json
+++ b/web/src/locales/en/data.json
@@ -181,6 +181,7 @@
     "First name": "First name",
     "Forget URL": "Forget URL",
     "Forget URL - Tooltip": "Forget URL - Tooltip",
+    "Found some texts still not translated? Please help us translate at": "Found some texts still not translated? Please help us translate at",
     "Go to writable demo site?": "Go to writable demo site?",
     "Home": "Home",
     "Home - Tooltip": "Home - Tooltip",
diff --git a/web/src/locales/es/data.json b/web/src/locales/es/data.json
index 0beb4c37..4c305475 100644
--- a/web/src/locales/es/data.json
+++ b/web/src/locales/es/data.json
@@ -181,6 +181,7 @@
     "First name": "Nombre",
     "Forget URL": "URL de olvido",
     "Forget URL - Tooltip": "URL de olvido - Tooltip",
+    "Found some texts still not translated? Please help us translate at": "Found some texts still not translated? Please help us translate at",
     "Go to writable demo site?": "Go to writable demo site?",
     "Home": "Inicio",
     "Home - Tooltip": "Inicio - Tooltip",
diff --git a/web/src/locales/fr/data.json b/web/src/locales/fr/data.json
index b14618fb..aa26c787 100644
--- a/web/src/locales/fr/data.json
+++ b/web/src/locales/fr/data.json
@@ -181,6 +181,7 @@
     "First name": "First name",
     "Forget URL": "Oublier l'URL",
     "Forget URL - Tooltip": "Unique string-style identifier",
+    "Found some texts still not translated? Please help us translate at": "Found some texts still not translated? Please help us translate at",
     "Go to writable demo site?": "Go to writable demo site?",
     "Home": "Domicile",
     "Home - Tooltip": "Application homepage",
diff --git a/web/src/locales/ja/data.json b/web/src/locales/ja/data.json
index 1d1b5270..379433a7 100644
--- a/web/src/locales/ja/data.json
+++ b/web/src/locales/ja/data.json
@@ -181,6 +181,7 @@
     "First name": "First name",
     "Forget URL": "URLを忘れた",
     "Forget URL - Tooltip": "Unique string-style identifier",
+    "Found some texts still not translated? Please help us translate at": "Found some texts still not translated? Please help us translate at",
     "Go to writable demo site?": "Go to writable demo site?",
     "Home": "ホーム",
     "Home - Tooltip": "Application homepage",
diff --git a/web/src/locales/ko/data.json b/web/src/locales/ko/data.json
index 648ff7ee..106a8b64 100644
--- a/web/src/locales/ko/data.json
+++ b/web/src/locales/ko/data.json
@@ -181,6 +181,7 @@
     "First name": "First name",
     "Forget URL": "Forget URL",
     "Forget URL - Tooltip": "Unique string-style identifier",
+    "Found some texts still not translated? Please help us translate at": "Found some texts still not translated? Please help us translate at",
     "Go to writable demo site?": "Go to writable demo site?",
     "Home": "Home",
     "Home - Tooltip": "Application homepage",
diff --git a/web/src/locales/ru/data.json b/web/src/locales/ru/data.json
index 5420eab8..891c95fe 100644
--- a/web/src/locales/ru/data.json
+++ b/web/src/locales/ru/data.json
@@ -181,6 +181,7 @@
     "First name": "Имя",
     "Forget URL": "Забыть URL",
     "Forget URL - Tooltip": "Unique string-style identifier",
+    "Found some texts still not translated? Please help us translate at": "Found some texts still not translated? Please help us translate at",
     "Go to writable demo site?": "Go to writable demo site?",
     "Home": "Домашний",
     "Home - Tooltip": "Application homepage",
diff --git a/web/src/locales/vi/data.json b/web/src/locales/vi/data.json
index 92824501..8d70d352 100644
--- a/web/src/locales/vi/data.json
+++ b/web/src/locales/vi/data.json
@@ -181,6 +181,7 @@
     "First name": "First name",
     "Forget URL": "Forget URL",
     "Forget URL - Tooltip": "Forget URL - Tooltip",
+    "Found some texts still not translated? Please help us translate at": "Found some texts still not translated? Please help us translate at",
     "Go to writable demo site?": "Go to writable demo site?",
     "Home": "Home",
     "Home - Tooltip": "Home - Tooltip",
diff --git a/web/src/locales/zh/data.json b/web/src/locales/zh/data.json
index 0dcf3634..e3d9341d 100644
--- a/web/src/locales/zh/data.json
+++ b/web/src/locales/zh/data.json
@@ -181,6 +181,7 @@
     "First name": "名字",
     "Forget URL": "忘记密码URL",
     "Forget URL - Tooltip": "忘记密码URL",
+    "Found some texts still not translated? Please help us translate at": "发现有些文字尚未翻译？请移步这里帮我们翻译：",
     "Go to writable demo site?": "跳转至可写演示站点？",
     "Home": "首页",
     "Home - Tooltip": "应用的首页",