AI product readBilibili (B站) video downloader — extracts video metadata from Bilibili pages and enables direct video file download by modifying response headers to force browser download
Users want to download Bilibili videos for offline viewing, but Bilibili does not natively offer a download button. The extension intercepts Bilibili's video CDN streams and sets Content-Disposition headers to 'attachment', triggering file downloads.
1. User installs extension and navigates to a Bilibili video/bangumi page. 2. Content script (video_bilibili_accessible.js) reads video metadata from the page's __INITIAL_STATE__ or __playinfo__. 3. Content script (video_bilibili_content.js) displays download options injected into the page UI. 4. When user clicks download, the popup/background resolves video URLs via Bilibili's player API. 5. declarativeNetRequest rules rewrite the Referer header and set Content-Disposition:attachment on bilivideo CDN requests, forcing the browser to download the video file instead of streaming it. 6. Optionally, the user can convert the downloaded video format via cv.pictureknow.com.
Bilibili video download via content script injection on bilibili.com/video and /bangumi pagesVideo metadata extraction from page state (__INITIAL_STATE__, __playinfo__)Header modification via declarativeNetRequest rules to set Referer and Content-Disposition: attachment on Bilibili CDN URLsVideo URL resolution via api.bilibili.com/x/player/playurl APIOptional video format conversion via cv.pictureknow.com serviceE-commerce coupon finder for Taobao, Tmall, and JD product pages
- Target users
- Chinese internet users who watch videos on Bilibili and want to download them for offline use / Users browsing Chinese e-commerce platforms (Taobao, Tmall, JD) looking for coupons
- All JS files are minified/webpack-bundled, making it difficult to trace exact application logic beyond keyword scanning
- The coupon_content.js and jd_coupon_content.js files are large React bundles whose specific UI elements cannot be easily inspected
- Cannot confirm whether the popup UI shows any paywall or upgrade prompts without rendering it
MonetizationNo paid features detected
No evidence of paid features, subscription gating, upgrade prompts, or payment platform integration found in the extension source code. Keyword matches for 'pro', 'license', and 'pay' were all false positives from React production builds, MIT license headers, CSS progress elements, and Sizzle.js internals. No Stripe, premium, membership, VIP, subscription, or upgrade keywords were found. The extension appears to be entirely free.
- Confidence
- 90
- Payment platform
- --
- Source
- AI / Medium
- Login required
- No
- Reason
- The extension itself does not implement any login UI, authentication flow, or account system. It works by extracting video metadata directly from Bilibili's page state (window.__INITIAL_STATE__, window.__playinfo__) via a content script injected into bilibili.com video/bangumi pages, and calls api.bilibili.com/x/player/playurl for video URLs. No cookie manipulation, OAuth, password fields, or sign-in UI were found. However, Bilibili (the destination service) may require its own login for higher-quality streams or bangumi content, which is outside the extension's control.
非常好用
谢谢大佬,你以后可以出个下载MP4格式的视频吗?FLV格式不怎么好
功能键在左上角,简洁好用~
根本没用
篡改空白标签页,流氓行径
扩展简洁实用,提个建议 希望可以提供mp4格式下载
还行,简单实用就行了
works perfect!