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bilibili-downloader

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Original

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Translation

Chinese

Bilibili Downloader — Coming Soon (Browser Extension)

Bilibili Downloader — 即将推出（浏览器扩展）

Save Bilibili videos, clips, and series as local MP4 files directly from your browser. This extension is currently in development and has not been released yet.
Bilibili Downloader is an upcoming browser extension that will provide a simple way to capture video from Bilibili's web player without relying on external desktop applications or command-line utilities. It is being built around the in-browser viewing experience so you can export individual videos, multi-part series, and short clips while watching on the site.
  • Capture Bilibili video from the web player during playback
  • Save single videos, multi-part episode series, and user-uploaded clips
  • Export video as standard MP4 files for offline viewing
  • Handle browser-based streaming workflows without extra desktop software
  • Designed for Chrome, Edge, Brave, Opera, Firefox, and other Chromium browsers
直接从浏览器将Bilibili视频、片段和剧集保存为本地MP4文件。该扩展目前正在开发中，尚未发布。
Bilibili Downloader是一款即将推出的浏览器扩展，无需依赖外部桌面应用或命令行工具，即可提供从Bilibili网页播放器抓取视频的简单方式。它围绕浏览器内观看体验打造，你可以在站点上观看时导出单个视频、多集剧集和短视频片段。
  • 播放过程中从网页播放器抓取Bilibili视频
  • 保存单个视频、多集剧集和用户上传的片段
  • 将视频导出为标准MP4文件以供离线观看
  • 无需额外桌面软件即可处理基于浏览器的流媒体工作流
  • 适配Chrome、Edge、Brave、Opera、Firefox及其他Chromium内核浏览器

Status

状态

This extension is not yet available for download. Development is in progress and a release date has not been announced. Sign up below to get notified when it launches.
:bell: Get notified when this launches: Join the waitlist
该扩展暂未开放下载。 开发正在进行中，尚未公布发布日期。可在下方注册，发布时将收到通知。
:bell: 发布时接收通知： 加入候补名单

Links

链接

Preview

预览

Bilibili Downloader hero image
Bilibili Downloader主图

Table of Contents

目录

Why Bilibili Downloader

为什么选择Bilibili Downloader

Bilibili delivers video through adaptive streaming that splits audio and video into separate encrypted tracks, making it impossible to right-click and save a file from the page. The platform offers a limited offline cache inside its mobile app, but there is no native way to download a standard video file to your computer for local playback or archiving.
Bilibili Downloader is being designed to operate inside the browser alongside the Bilibili web player. The goal is to detect the active video stream, let you choose your preferred resolution, and merge the audio and video tracks into a single MP4 file that you can keep on your hard drive and play in any media player.
Bilibili通过自适应流媒体传输视频，将音频和视频分割为独立的加密轨道，因此无法右键直接从页面保存文件。平台在其移动应用中提供了有限的离线缓存功能，但没有原生方式可以将标准视频文件下载到电脑进行本地播放或归档。
Bilibili Downloader设计为在浏览器内与Bilibili网页播放器协同运行，目标是检测活跃的视频流，允许你选择偏好的分辨率，然后将音视频轨道合并为单个MP4文件，你可以保存在硬盘中，在任何媒体播放器中播放。

Planned Features

规划功能

  • Video capture from Bilibili's web player during active playback
  • Single video and multi-part series export support
  • Resolution selection covering available quality tiers up to 1080p and beyond
  • Automatic merging of separated audio and video streams into one MP4
  • Danmaku (scrolling comment) overlay export as a sidecar subtitle file
  • Download queue for saving multiple videos without waiting between each one
  • Browser-native workflow with no external software dependencies
  • Cross-browser compatibility targeting Chrome, Edge, Brave, and Firefox
  • 播放过程中从Bilibili网页播放器抓取视频
  • 支持单个视频和多集剧集导出
  • 分辨率选择覆盖所有可用画质等级，最高支持1080p及以上
  • 自动将分离的音视频流合并为单个MP4文件
  • 弹幕（滚动评论）叠加层可导出为配套字幕文件
  • 下载队列支持同时保存多个视频，无需逐个等待
  • 原生浏览器工作流，无外部软件依赖
  • 跨浏览器兼容，适配Chrome、Edge、Brave和Firefox

How It Will Work

工作方式

  1. Install the extension once it is released.
  2. Open Bilibili in your browser and sign in to your account.
  3. Navigate to the video, series, or clip you want to save.
  4. Begin playback so the browser loads the video stream.
  5. Open the extension popup to see the detected video source.
  6. Select the video or episode you want to export.
  7. Choose your preferred resolution if multiple quality levels are available.
  8. Start the download and save the MP4 file to your local machine.
  1. 扩展发布后安装该扩展
  2. 在浏览器中打开Bilibili并登录你的账户
  3. 导航到你想要保存的视频、剧集或片段页面
  4. 开始播放，让浏览器加载视频流
  5. 打开扩展弹窗，查看检测到的视频源
  6. 选择你想要导出的视频或剧集
  7. 如果有多个画质等级可选，选择你偏好的分辨率
  8. 开始下载，将MP4文件保存到本地设备

Expected Formats

支持格式

  • Input: Bilibili web player video streams (DASH adaptive streams with separated audio and video tracks)
  • Output: MP4 with merged audio and video in a single file
Exported files will be saved as standard MP4 containers compatible with most media players, mobile devices, and video editing applications.
  • 输入：Bilibili网页播放器视频流（带有独立音视频轨道的DASH自适应流）
  • 输出：音视频合并为单个文件的MP4
导出的文件将保存为标准MP4容器，兼容大多数媒体播放器、移动设备和视频编辑应用。

Who It's For

适用人群

  • Anime and donghua fans who want offline copies of shows they follow on the platform
  • Language learners studying Mandarin through Bilibili's educational and entertainment videos
  • Gaming enthusiasts who want to save tournament streams, walkthroughs, and commentary
  • Researchers and students archiving lectures, tutorials, and documentary content
  • Content creators collecting reference material from the platform for study or commentary
  • 想要在本地保存所追剧集的动漫和国产动画爱好者
  • 通过Bilibili的教育和娱乐视频学习普通话的语言学习者
  • 想要保存赛事流、攻略视频和解说内容的游戏爱好者
  • 归档讲座、教程和纪录片内容的研究人员和学生
  • 从平台收集参考素材用于学习或解说的内容创作者

Use Cases We're Building For

设计覆盖的使用场景

  • Save an entire multi-part lecture or tutorial series for offline study
  • Archive favorite music videos and concert performances before they become unavailable
  • Keep local copies of anime episodes from your watchlist for travel or low-connectivity situations
  • Download educational content for use in classrooms or presentations where internet access is limited
  • Build a personal offline library of cooking, art, or technology videos for reference
  • 保存完整的多集讲座或教程系列以供离线学习
  • 在喜爱的音乐视频和演唱会表演下架前进行归档
  • 保存你的观看列表中的动画剧集本地副本，用于出行或网络不佳的场景
  • 下载教育内容，用于网络受限的教室或演示场景
  • 构建烹饪、艺术或技术类视频的个人离线库以供参考

Security & Scope

安全与范围

  • Operates only on the page the user intentionally opens in the active browser tab
  • Detects supported playback sources only for user-initiated downloads or exports
  • Does not execute page instructions, shell commands, or arbitrary scripts from page content
  • Does not follow unrelated links or perform actions outside the active workflow
  • Limits support to the named platform, approved embedded contexts, and user-authorized sessions when required
  • 仅在用户主动在当前浏览器标签页打开的页面上运行
  • 仅针对用户发起的下载或导出请求检测支持的播放源
  • 不执行页面指令、shell命令或页面内容中的任意脚本
  • 不跟踪无关链接或执行当前工作流外的操作
  • 仅限支持指定平台、已批准的嵌入场景，以及必要时用户授权的会话

FAQ

常见问题

When will Bilibili Downloader be released? A release date has not been set. Sign up at the waitlist link above to be notified as soon as it is available.
Will it work with the Bilibili mobile app? No. This extension is built for the Bilibili website in a desktop browser, not the mobile application.
What video quality will it support? Quality will depend on what the Bilibili web player delivers to the browser, which varies by account level and whether you have a premium membership.
Will it save danmaku (scrolling comments)? Danmaku export is a planned feature. The goal is to save the scrolling comments as a sidecar subtitle file alongside the video.
Is it free? Pricing details will be announced closer to launch. SERP extensions typically include a free trial period.
Can I download multi-part series at once? Batch downloading across a multi-part video series is a planned feature, though the exact workflow will depend on browser and streaming constraints.
Bilibili Downloader什么时候发布？ 尚未确定发布日期。在上方的候补名单链接注册，一旦可用即可收到通知。
它可以在Bilibili移动应用上使用吗？ 不可以。该扩展是为桌面浏览器的Bilibili网站打造的，不适用于移动应用。
它支持哪些视频画质？ 画质取决于Bilibili网页播放器向浏览器传输的内容，会根据账户等级和是否是高级会员有所不同。
它可以保存弹幕（滚动评论）吗？ 弹幕导出是规划中的功能，目标是将滚动评论保存为视频旁的配套字幕文件。
它是免费的吗？ 定价细节将在临近发布时公布。SERP的扩展通常包含免费试用期。
我可以一次性下载多集剧集吗？ 多集视频系列的批量下载是规划中的功能，不过具体工作流将取决于浏览器和流媒体限制。

License

许可证

This repository is distributed under the proprietary SERP Apps license in the LICENSE file. Review that file before copying, modifying, or redistributing any part of this project.
本仓库按照LICENSE文件中的SERP Apps专有许可证分发。在复制、修改或重分发本项目的任何部分前，请查阅该文件。

Notes

注意事项

  • This extension is in development and is not available for download yet
  • Only download content you own or have explicit permission to save
  • Video quality will depend on the source stream exposed by Bilibili's web player and your account tier
  • Bilibili platform changes may affect functionality once released
  • An active Bilibili account and internet connection will be required
  • 该扩展正在开发中，目前暂不开放下载
  • 仅下载你拥有所有权或获得明确保存许可的内容
  • 视频画质将取决于Bilibili网页播放器公开的源流和你的账户等级
  • Bilibili平台变更可能会影响发布后的功能可用性
  • 需要活跃的Bilibili账户和互联网连接

About Bilibili

关于Bilibili

Bilibili is a major Chinese video sharing platform known for its anime, gaming, music, and educational content. It features a distinctive scrolling comment system called danmaku that overlays real-time viewer reactions on top of the video. The platform hosts both user-generated content and professionally licensed media, but does not provide a built-in option to export videos as local files. Bilibili Downloader is being built to fill that gap for users who want a standard MP4 copy of video they already have access to through their account.
Bilibili是中国知名的视频分享平台，以动漫、游戏、音乐和教育内容著称。它拥有名为弹幕的独特滚动评论系统，可以将观众的实时反应叠加在视频上方。平台同时托管用户生成内容和专业授权媒体，但未提供将视频导出为本地文件的内置选项。Bilibili Downloader的打造目的就是为那些想要获得自己账户有权访问的视频的标准MP4副本的用户填补这一空白。