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coursera-downloader

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Coursera Downloader — Coming Soon (Browser Extension)

Coursera Downloader — 即将推出（浏览器扩展）

Save Coursera video lectures as MP4 files for offline study directly from your browser. This extension is currently in development and has not been released yet.
Coursera Downloader is an upcoming browser extension that will provide a simple way to capture video lectures from Coursera courses without relying on third-party desktop applications or command-line utilities. It is being built around the browser-based course player so you can export lectures, module videos, and supplementary video content while working through your enrolled courses.
  • Capture Coursera video lectures from the course player during playback
  • Save individual lectures or batch-download entire module video sets
  • Export videos as standard MP4 files for offline viewing and study
  • Handle browser-based playback flows without extra desktop software
  • Designed for Chrome, Edge, Brave, Opera, Firefox, and other Chromium browsers
直接从浏览器将Coursera视频讲座保存为MP4文件，供离线学习。该扩展目前处于开发阶段，尚未发布。
Coursera Downloader是一款即将推出的浏览器扩展，无需依赖第三方桌面应用或命令行工具，即可简单抓取Coursera课程中的视频讲座。它基于浏览器端的课程播放器构建，你在学习已报名的课程时，可以导出讲座、模块视频以及补充视频内容。
  • 播放过程中直接从课程播放器抓取Coursera视频讲座
  • 保存单个讲座或批量下载整个模块的视频集
  • 将视频导出为标准MP4文件，供离线观看和学习
  • 无需额外桌面软件，适配浏览器端播放流程
  • 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
该扩展暂不支持下载。 开发工作正在进行中，尚未公布发布日期。可在下方注册，上线后将第一时间收到通知。
:bell: 上线时接收通知： 加入等候列表

Links

链接

Preview

预览

Coursera Downloader hero image
Coursera Downloader宣传图

Table of Contents

目录

Why Coursera Downloader

为什么选择Coursera Downloader

Coursera delivers video lectures through an adaptive streaming player embedded in its course pages. There is no built-in option to download lectures as standalone video files for offline playback outside the platform. While the Coursera mobile app allows limited offline access, those downloads are locked inside the app and cannot be transferred, organized, or played in a standard video player.
Coursera Downloader is being designed to sit inside the browser and work alongside the Coursera course player. The goal is to detect video playback on a course page, let you select which lectures to save, and produce a standard MP4 file that you can store on your machine, load onto a tablet, or organize into your own study library independent of a Coursera subscription or internet connection.
Coursera通过课程页面内嵌的自适应流媒体播放器提供视频讲座，平台未内置将讲座下载为独立视频文件、在平台外离线播放的功能。虽然Coursera移动应用支持有限的离线访问，但下载的内容被锁定在应用内，无法转移、整理，也不能在标准视频播放器中播放。
Coursera Downloader设计为在浏览器内运行，与Coursera课程播放器协同工作。目标是检测课程页面上的视频播放内容，允许你选择要保存的讲座，生成标准MP4文件，你可以将其存储在设备上、加载到平板中，或者整理到自己的学习库中，无需Coursera订阅也无需网络连接即可观看。

Planned Features

规划功能

  • Video capture from Coursera's course player during active lecture playback
  • Individual lecture download and full module batch export support
  • Resolution selection so you can choose between smaller files and higher quality
  • Automatic file naming based on course title, module, and lecture name
  • Subtitle track extraction where available alongside the video
  • Download queue for stacking multiple lectures without waiting between each one
  • Browser-native workflow with no external software dependencies
  • Cross-browser compatibility targeting Chrome, Edge, Brave, and Firefox
  • 讲座播放过程中从Coursera课程播放器抓取视频
  • 支持单个讲座下载和完整模块批量导出
  • 支持分辨率选择，你可以在小文件体积和高清画质之间选择
  • 基于课程标题、模块和讲座名称自动命名文件
  • 支持提取可用的字幕轨道，与视频一同保存
  • 下载队列功能，无需等待单个任务完成即可添加多个讲座
  • 浏览器原生工作流，无外部软件依赖
  • 跨浏览器兼容，覆盖Chrome、Edge、Brave和Firefox

How It Will Work

工作原理

  1. Install the extension once it is released.
  2. Open Coursera in your browser and sign in to your account.
  3. Navigate to the course, specialization, or module containing the lectures you want.
  4. Open a lecture page so the browser loads the video player.
  5. Open the extension popup to see the detected video source.
  6. Select the lecture or lectures you want to export.
  7. Choose your preferred resolution if multiple quality options 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Coursera并登录你的账户
  3. 进入包含你想下载讲座的课程、专项课程或模块
  4. 打开讲座页面，让浏览器加载视频播放器
  5. 打开扩展弹窗，查看检测到的视频源
  6. 选择你想导出的单个或多个讲座
  7. 如果有多个画质选项，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

预期格式

  • Input: Coursera adaptive video streams (HLS / DASH delivered through the course player)
  • Output: MP4 (H.264 video with AAC audio)
Exported files will be saved as standard MP4 files compatible with virtually every media player, phone, tablet, and video editing application. Subtitle tracks, when available, will be saved as separate SRT files alongside the video.
  • 输入：Coursera自适应视频流（通过课程播放器提供的HLS / DASH流）
  • 输出：MP4（H.264视频编码 + AAC音频编码）
导出的文件将保存为标准MP4文件，几乎兼容所有媒体播放器、手机、平板和视频编辑应用。如果有可用字幕轨道，将作为独立的SRT文件与视频一同保存。

Who It's For

适用人群

  • Students enrolled in Coursera courses who want offline access to video lectures
  • Lifelong learners building a personal library of educational content
  • Professionals completing certificate programs who need to review material on the go
  • Researchers saving lecture content for reference and citation purposes
  • Users in areas with unreliable internet who need dependable offline study materials
  • 已报名Coursera课程、想要离线访问视频讲座的学生
  • 想要搭建个人教育内容库的终身学习者
  • 正在考取证书、需要随时随地复习内容的职场人士
  • 保存讲座内容用于参考和引用的研究人员
  • 所在地区网络不稳定、需要可靠离线学习材料的用户

Use Cases We're Building For

适用场景

  • Download a full week of lectures before a flight or commute with limited connectivity
  • Archive course videos from a specialization before your subscription period ends
  • Build an organized local study library sorted by course, module, and topic
  • Save specific lectures for repeated review during exam preparation
  • Keep backup copies of professional development course content for future reference
  • 在网络受限的飞行或通勤前下载一整周的讲座
  • 订阅期结束前归档专项课程的所有课程视频
  • 搭建按课程、模块、主题分类的有序本地学习库
  • 保存特定讲座，备考期间反复复习
  • 备份职业发展课程内容，供未来参考

Security & Scope

安全与权限范围

  • 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
  • 仅在用户主动打开的当前浏览器标签页运行
  • 仅对用户主动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
  • 不跳转无关链接，也不在当前工作流外执行任何操作
  • 仅支持指定平台、已批准的内嵌上下文，必要时仅在用户授权的会话下运行

FAQ

常见问题

When will Coursera 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 Coursera mobile app? No. This extension is built for the Coursera website in the browser, not the iOS or Android application.
What video quality will it support? Quality options will depend on what Coursera's player makes available for a given lecture, which can vary by course and account type.
Will it save subtitles along with the video? The plan is to extract subtitle tracks where Coursera provides them and save them as SRT files alongside the downloaded MP4.
Is it free? Pricing details will be announced closer to launch. SERP extensions typically include a free trial period.
Can I download all lectures in a course at once? Module-level batch export is a planned feature, though the exact workflow will depend on browser limitations and how Coursera structures its video delivery.
Coursera Downloader什么时候发布？ 尚未确定发布日期。在上方等候列表链接注册，上线后将第一时间收到通知。
它能在Coursera移动应用上使用吗？ 不能。该扩展是为浏览器端的Coursera网站构建的，不适用于iOS或Android应用。
它支持哪些视频画质？ 画质选项取决于Coursera播放器为对应讲座提供的可选画质，不同课程和账户类型的可选画质可能存在差异。
它会和视频一起保存字幕吗？ 我们计划在Coursera提供字幕的场景下提取字幕轨道，将其作为SRT文件与下载的MP4一同保存。
它是免费的吗？ 定价细节将在临近发布时公布。SERP旗下的扩展通常会提供免费试用期。
我可以一次性下载一门课程的所有讲座吗？ 模块级批量导出是规划中的功能，具体的工作流取决于浏览器限制以及Coursera的视频分发结构。

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.
本仓库基于LICENSE文件中的SERP Apps专有许可证分发。在复制、修改或重新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 are enrolled in or have explicit permission to save
  • Video quality will depend on the source stream exposed by Coursera's course player
  • Coursera platform changes may affect functionality once released
  • An active Coursera account and internet connection will be required for capture
  • 该扩展正在开发中，目前暂不支持下载
  • 仅下载你已报名或获得明确授权保存的内容
  • 视频画质取决于Coursera课程播放器公开的源流质量
  • Coursera平台变更可能会影响发布后的功能可用性
  • 抓取视频需要有效的Coursera账户和网络连接

About Coursera

关于Coursera

Coursera is a major online learning platform offering courses, specializations, professional certificates, and full degree programs from leading universities and companies worldwide. Courses typically include video lectures, quizzes, peer-graded assignments, and discussion forums. The platform streams lecture videos through its browser-based course player but does not provide a built-in option to save those videos as standalone files. Coursera Downloader is being built to bridge that gap for enrolled learners who want local MP4 copies of lectures for offline study and review.
Coursera是全球知名的在线学习平台，提供来自顶尖大学和企业的课程、专项课程、职业证书和完整学位项目。课程通常包含视频讲座、测验、同伴互评作业和讨论论坛。平台通过浏览器端的课程播放器流式传输讲座视频，但未内置将这些视频保存为独立文件的功能。Coursera Downloader的构建目的就是为已报名的学习者填补这一空白，帮助他们获取讲座的本地MP4副本，用于离线学习和复习。