diff --git a/plugins/login/LICENSE b/plugins/login/LICENSE
new file mode 100644
index 0000000..5704cd7
--- /dev/null
+++ b/plugins/login/LICENSE
@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2025 xfgryujk
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
\ No newline at end of file
diff --git a/plugins/login/app.py b/plugins/login/app.py
new file mode 100644
index 0000000..5e7fc2f
--- /dev/null
+++ b/plugins/login/app.py
@@ -0,0 +1,176 @@
+# -*- coding: utf-8 -*-
+import asyncio
+import concurrent.futures
+import http.cookies
+import logging
+import threading
+import time
+from typing import *
+
+import aiohttp
+import webview
+
+import blcsdk
+import config
+import cookies_mgr
+import listener
+
+logger = logging.getLogger('login.' + __name__)
+
+_app: Optional['App'] = None
+
+
+def init():
+    global _app
+    _app = App()
+    _app.init()
+
+
+def get_app():
+    return _app
+
+
+class App:
+    def __init__(self):
+        self._is_standalone_mode = False
+
+        self._logic_worker = LogicWorker()
+
+        self._browser_window = webview.create_window(
+            title='登录B站账号',
+            width=1100,
+            height=700,
+            hidden=True,
+        )
+        self._browser_window.events.closing += self._on_browser_closing
+        self._browser_window.events.loaded += self._on_browser_loaded
+
+    def init(self):
+        self._logic_worker.init()
+
+    @staticmethod
+    def run():
+        logger.info('Running event loop')
+        webview.start(user_agent=config.USER_AGENT)
+        logger.info('Start to shut down')
+
+    def start_shut_down(self):
+        self._browser_window.events.loaded -= self._on_browser_loaded
+        self._browser_window.events.closing -= self._on_browser_closing
+        self._browser_window.destroy()
+
+    def shut_down(self):
+        self._logic_worker.start_shut_down()
+        self._logic_worker.join(10)
+
+    @property
+    def is_standalone_mode(self):
+        """不作为blivechat插件运行，而是单独运行"""
+        return self._is_standalone_mode
+
+    def set_standalone_mode(self):
+        self._is_standalone_mode = True
+
+    def open_admin_ui(self):
+        self._browser_window.clear_cookies()
+        # 如果不换个URL，不会发loaded事件，会一直等待...
+        url = f'https://passport.bilibili.com/login?t={time.time()}'
+        self._browser_window.load_url(url)
+        self._browser_window.show()
+
+    def _on_browser_closing(self):
+        if self.is_standalone_mode:
+            return True
+
+        # 插件模式时随主程序一起结束，先不关闭窗口
+        self._browser_window.hide()
+        self._browser_window.load_html('')
+        return False
+
+    def _on_browser_loaded(self):
+        simple_cookies: List[http.cookies.SimpleCookie] = self._browser_window.get_cookies()
+        async def try_save():
+            cookie_jar = aiohttp.CookieJar()
+            for simple_cookie in simple_cookies:
+                cookie_jar.update_cookies(simple_cookie)
+
+            if not await cookies_mgr.validate_and_save_cookies(cookie_jar):
+                return
+
+            if self.is_standalone_mode:
+                self.start_shut_down()
+            else:
+                self._browser_window.hide()
+                self._browser_window.load_html('')
+
+        self._logic_worker.run_coro(try_save())
+
+
+class LogicWorker:
+    def __init__(self):
+        self._worker_thread = threading.Thread(
+            target=asyncio.run, args=(self._worker_thread_func(),), daemon=True
+        )
+        self._thread_init_future = concurrent.futures.Future()
+
+        self._loop: Optional[asyncio.AbstractEventLoop] = None
+        self._shut_down_event: Optional[asyncio.Event] = None
+
+    def init(self):
+        self._worker_thread.start()
+        self._thread_init_future.result(10)
+
+    def start_shut_down(self):
+        if self._shut_down_event is not None:
+            self._loop.call_soon_threadsafe(self._shut_down_event.set)
+
+    def join(self, timeout=None):
+        self._worker_thread.join(timeout)
+        return not self._worker_thread.is_alive()
+
+    async def _worker_thread_func(self):
+        self._loop = asyncio.get_running_loop()
+        self._shut_down_event = asyncio.Event()
+        try:
+            try:
+                await self._init_in_worker_thread()
+                self._thread_init_future.set_result(None)
+            except BaseException as e:
+                self._thread_init_future.set_exception(e)
+                return
+
+            await self._run()
+        finally:
+            await self._shut_down()
+
+    @staticmethod
+    async def _init_in_worker_thread():
+        try:
+            await blcsdk.init()
+        except blcsdk.InitError as e:
+            logger.info('SDK initializing failed: %s', e)
+            logger.info('Switch to standalone mode')
+            get_app().set_standalone_mode()
+        else:
+            await listener.init()
+
+        cookies_mgr.init()
+
+    async def _run(self):
+        logger.info('Running logic thread event loop')
+        await self._shut_down_event.wait()
+        logger.info('Logic thread start to shut down')
+
+    @staticmethod
+    async def _shut_down():
+        await cookies_mgr.shut_down()
+
+        if not get_app().is_standalone_mode:
+            listener.shut_down()
+            await blcsdk.shut_down()
+
+    # def call_soon(self, func, *args):
+    #     self._loop.call_soon_threadsafe(func, *args)
+
+    def run_coro(self, coro: Coroutine):
+        self._loop.call_soon_threadsafe(self._loop.create_task, coro)
diff --git a/plugins/login/config.py b/plugins/login/config.py
new file mode 100644
index 0000000..5509c17
--- /dev/null
+++ b/plugins/login/config.py
@@ -0,0 +1,9 @@
+# -*- coding: utf-8 -*-
+import os
+
+BASE_PATH = os.path.dirname(os.path.realpath(__file__))
+LOG_PATH = os.path.join(BASE_PATH, 'log')
+
+USER_AGENT = (
+    'Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/102.0.0.0 Safari/537.36'
+)
diff --git a/plugins/login/cookies_mgr.py b/plugins/login/cookies_mgr.py
new file mode 100644
index 0000000..77d8f3f
--- /dev/null
+++ b/plugins/login/cookies_mgr.py
@@ -0,0 +1,156 @@
+# -*- coding: utf-8 -*-
+import asyncio
+import dataclasses
+import logging
+import os
+import pickle
+import sys
+from typing import *
+
+import aiohttp
+import yarl
+
+import app
+import config
+
+logger = logging.getLogger('login.' + __name__)
+
+_BILIBILI_DOMAIN = 'bilibili.com'
+_USER_INFO_URL = 'https://api.bilibili.com/x/web-interface/nav'
+
+if getattr(sys, 'frozen', False) and hasattr(sys, '_MEIPASS'):
+    # 被PyInstaller打包了，用当前目录计算
+    _BLC_COOKIE_JAR_PATH = os.path.realpath(os.path.join('..', '..', 'cookie_jar.pickle'))
+else:
+    _BLC_COOKIE_JAR_PATH = os.path.realpath(os.path.join(config.BASE_PATH, '..', '..', 'data', 'cookie_jar.pickle'))
+
+_logic_loop: Optional[asyncio.AbstractEventLoop] = None
+_http_session: Optional[aiohttp.ClientSession] = None
+
+# 用来防重
+_validating_sessdata_set: Set[str] = set()
+
+
+def init():
+    global _logic_loop, _http_session
+    _logic_loop = asyncio.get_running_loop()
+    _http_session = aiohttp.ClientSession(
+        timeout=aiohttp.ClientTimeout(total=10),
+    )
+
+    _logic_loop.create_task(_validate_on_startup())
+
+
+async def shut_down():
+    if _http_session is not None:
+        await _http_session.close()
+
+
+async def _validate_on_startup():
+    """如果未登录则打开登录窗口"""
+    # 等主线程初始化
+    sleep_task = asyncio.create_task(asyncio.sleep(2))
+
+    app_ = app.get_app()
+    if app_.is_standalone_mode:
+        await sleep_task
+        app_.open_admin_ui()
+        return
+
+    cookie_jar = _load_blc_cookies()
+    if cookie_jar is not None:
+        user_info = await _get_user_info_from_cookies(cookie_jar)
+        if user_info is not None:
+            logger.info('Found logged in user: uid=%d, name=%s', user_info.uid, user_info.name)
+            return
+
+    logger.info('No user info. Please log in')
+    await sleep_task
+    app_.open_admin_ui()
+
+
+def _load_blc_cookies():
+    try:
+        cookie_jar = aiohttp.CookieJar()
+        cookie_jar.load(_BLC_COOKIE_JAR_PATH)
+        return cookie_jar
+    except (OSError, pickle.PickleError):
+        return None
+
+
+def _save_blc_cookies(cookie_jar: aiohttp.CookieJar):
+    logger.info('Saving cookies')
+
+    tmp_path = _BLC_COOKIE_JAR_PATH + '.tmp'
+    cookie_jar.save(tmp_path)
+    os.replace(tmp_path, _BLC_COOKIE_JAR_PATH)
+
+    logger.info('Cookies saved. Please restart blivechat to take effect')
+
+
+async def validate_and_save_cookies(cookie_jar: aiohttp.CookieJar):
+    sessdata = _get_sessdata(cookie_jar)
+    if sessdata is None or sessdata in _validating_sessdata_set:
+        return False
+    _validating_sessdata_set.add(sessdata)
+
+    try:
+        user_info = await _get_user_info_from_cookies(cookie_jar)
+        if user_info is None:
+            return False
+        logger.info('Got user info: uid=%d, name=%s', user_info.uid, user_info.name)
+
+        _save_blc_cookies(cookie_jar)
+        return True
+    except:
+        _validating_sessdata_set.discard(sessdata)
+        raise
+
+
+def _get_sessdata(cookie_jar: aiohttp.CookieJar):
+    cookies = cookie_jar.filter_cookies(yarl.URL(_USER_INFO_URL))
+    sessdata_cookie = cookies.get('SESSDATA', None)
+    if sessdata_cookie is None or sessdata_cookie.value == '':
+        return None
+    return sessdata_cookie.value
+
+
+@dataclasses.dataclass
+class BilibiliUserInfo:
+    uid: int
+    name: str
+
+
+async def _get_user_info_from_cookies(cookie_jar: aiohttp.CookieJar):
+    if _get_sessdata(cookie_jar) is None:
+        logger.info('Failed to get user info: no SESSDATA')
+        return None
+
+    try:
+        async with _http_session.get(
+            _USER_INFO_URL,
+            cookies=cookie_jar.filter_cookies(yarl.URL(_USER_INFO_URL)),
+            headers={'User-Agent': config.USER_AGENT},
+        ) as res:
+            res.raise_for_status()
+
+            data = await res.json()
+            if data['code'] != 0:
+                if data['code'] == -101:
+                    logger.info('Failed to get user info: not logged in')
+                else:
+                    logger.warning('Failed to get user info: code=%d, message=%s', data['code'], data['message'])
+                return None
+
+            data = data['data']
+            if not data['isLogin']:
+                logger.info('Failed to get user info: not logged in')
+                return None
+
+            return BilibiliUserInfo(
+                uid=data['mid'],
+                name=data['uname'],
+            )
+    except aiohttp.ClientError as e:
+        logger.warning('Failed to get user info: %s', e)
+        return None
diff --git a/plugins/login/listener.py b/plugins/login/listener.py
new file mode 100644
index 0000000..f75eeeb
--- /dev/null
+++ b/plugins/login/listener.py
@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*-
+import logging
+from typing import *
+
+import app
+import blcsdk
+import blcsdk.models as sdk_models
+
+logger = logging.getLogger('login.' + __name__)
+
+_msg_handler: Optional['MsgHandler'] = None
+
+
+async def init():
+    global _msg_handler
+    _msg_handler = MsgHandler()
+    blcsdk.set_msg_handler(_msg_handler)
+
+
+def shut_down():
+    blcsdk.set_msg_handler(None)
+
+
+class MsgHandler(blcsdk.BaseHandler):
+    def on_client_stopped(self, client: blcsdk.BlcPluginClient, exception: Optional[Exception]):
+        logger.info('blivechat disconnected')
+        app.get_app().start_shut_down()
+
+    def _on_open_plugin_admin_ui(
+        self, client: blcsdk.BlcPluginClient, message: sdk_models.OpenPluginAdminUiMsg, extra: sdk_models.ExtraData
+    ):
+        app.get_app().open_admin_ui()
diff --git a/plugins/login/log/.gitkeep b/plugins/login/log/.gitkeep
new file mode 100644
index 0000000..e69de29
diff --git a/plugins/login/login.spec b/plugins/login/login.spec
new file mode 100644
index 0000000..0550738
--- /dev/null
+++ b/plugins/login/login.spec
@@ -0,0 +1,89 @@
+# -*- mode: python ; coding: utf-8 -*-
+import typing
+import subprocess
+import sys
+
+import webview.__pyinstaller
+
+if typing.TYPE_CHECKING:
+    import os
+
+    from PyInstaller.building.api import COLLECT, EXE, PYZ
+    from PyInstaller.building.build_main import Analysis
+
+    SPECPATH = ''
+    DISTPATH = ''
+
+
+# exe文件名、打包目录名
+NAME = 'login'
+# 模块搜索路径
+PYTHONPATH = [
+    os.path.join(SPECPATH, '..', '..'),  # 为了找到blcsdk
+]
+# 数据
+DATAS = [
+    ('plugin.json', '.'),
+    ('LICENSE', '.'),
+    ('log/.gitkeep', 'log'),
+]
+
+block_cipher = None
+
+
+a = Analysis(
+    ['main.py'],
+    pathex=PYTHONPATH,
+    binaries=[],
+    datas=DATAS,
+    hiddenimports=[],
+    hookspath=[
+        os.path.dirname(webview.__pyinstaller.__file__),  # pyinstaller-hooks-contrib的版本太老了，少打包了js文件...
+    ],
+    hooksconfig={},
+    runtime_hooks=[],
+    excludes=[],
+    win_no_prefer_redirects=False,
+    win_private_assemblies=False,
+    cipher=block_cipher,
+    noarchive=False,
+)
+
+pyz = PYZ(
+    a.pure,
+    a.zipped_data,
+    cipher=block_cipher,
+)
+
+exe = EXE(
+    pyz,
+    a.scripts,
+    [],
+    exclude_binaries=True,
+    name=NAME,
+    debug=False,
+    bootloader_ignore_signals=False,
+    strip=False,
+    upx=False,
+    console=True,
+    disable_windowed_traceback=False,
+    argv_emulation=False,
+    target_arch=None,
+    codesign_identity=None,
+    entitlements_file=None,
+)
+
+coll = COLLECT(
+    exe,
+    a.binaries,
+    a.zipfiles,
+    a.datas,
+    strip=False,
+    upx=False,
+    upx_exclude=[],
+    name=NAME,
+)
+
+# 打包
+print('Start to package')
+subprocess.run([sys.executable, '-m', 'zipfile', '-c', NAME + '.zip', NAME], cwd=DISTPATH)
diff --git a/plugins/login/main.py b/plugins/login/main.py
new file mode 100644
index 0000000..3fcf845
--- /dev/null
+++ b/plugins/login/main.py
@@ -0,0 +1,68 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+import logging.handlers
+import os
+import signal
+import sys
+
+import app
+import config
+
+logger = logging.getLogger('login')
+
+
+def main():
+    try:
+        init()
+        run()
+    finally:
+        shut_down()
+    return 0
+
+
+def init():
+    init_signal_handlers()
+
+    init_logging()
+
+    app.init()
+
+
+def init_signal_handlers():
+    for signum in (signal.SIGINT, signal.SIGTERM):
+        signal.signal(signum, start_shut_down)
+
+
+def start_shut_down(*_args):
+    app_ = app.get_app()
+    if app_ is not None:
+        app_.start_shut_down()
+
+
+def init_logging():
+    filename = os.path.join(config.LOG_PATH, 'login.log')
+    stream_handler = logging.StreamHandler()
+    file_handler = logging.handlers.TimedRotatingFileHandler(
+        filename, encoding='utf-8', when='midnight', backupCount=7, delay=True
+    )
+    logging.basicConfig(
+        format='{asctime} {levelname} [{name}]: {message}',
+        style='{',
+        level=logging.INFO,
+        # level=logging.DEBUG,
+        handlers=[stream_handler, file_handler],
+    )
+
+
+def run():
+    app.get_app().run()
+
+
+def shut_down():
+    app_ = app.get_app()
+    if app_ is not None:
+        app_.shut_down()
+
+
+if __name__ == '__main__':
+    sys.exit(main())
diff --git a/plugins/login/plugin.json b/plugins/login/plugin.json
new file mode 100644
index 0000000..c9536ae
--- /dev/null
+++ b/plugins/login/plugin.json
@@ -0,0 +1,8 @@
+{
+  "name": "登录B站账号",
+  "version": "1.0.0",
+  "author": "xfgryujk",
+  "description": "启动后会弹出登录账号的窗口，登录后重启blivechat即是登录状态。登录后即使通过房间ID连接，也可以获取昵称。主要用于连不上公共服务器时的应急措施，平时还是尽量通过身份码连接。需要 1. blivechat版本1.10以上；2. 开启“通过服务器转发消息”选项。**建议用小号登录，因为如果连接太多房间，有被B站封号的风险。**cookie完全存储在本地，不会上传到任何服务器。发布地址：https://github.com/xfgryujk/blivechat/discussions/276",
+  "run": "login.exe",
+  "enabled": true
+}
diff --git a/plugins/login/requirements.txt b/plugins/login/requirements.txt
new file mode 100644
index 0000000..51ef4c0
--- /dev/null
+++ b/plugins/login/requirements.txt
@@ -0,0 +1,3 @@
+aiohttp==3.9.5
+pywebview==6.1
+yarl==1.9.11