Extract, summarize, and explore in one click. Zero ads, pure insight.
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Features · Screenshots · Manual Installation · Plugin Configuration · Development
WebSideChat is a lightweight browser extension: extract the content of any web page or video in one click, then chat with it using your favorite AI.
WebSideChat summarizes pages and videos, so you get the knowledge fast and skip the ads.
WebSideChat answers questions about whatever you're reading or watching.
- Subscription Reuse — Subscribe once, use everywhere. Seamlessly compatible with setups from Claude Code, Codex, and OpenCode, with full support for DeepSeek, Zhipu AI, and various LLM proxy coding plans.
- Video Chat — Chat directly with YouTube and Bilibili videos. Grab key takeaways instantly, skip the fluff and ads, and dig into specific parts without watching the whole thing.
- Follow-up questions — Page content stays as persistent context, so you can keep asking about the page.
- Custom prompts — Fully editable summary prompts with a fallback to built-in defaults at any time.
- Parallel tabs — Each tab is an independent session and stream. Chat in multiple tabs without interference.
| YouTube | Bilibili | Web Page |
|---|---|---|
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- Download the latest
websidechat-vX.Y.Z-chrome.zipfrom the Releases page - Unzip it to any folder (keep the folder — don't delete it)
- Open
chrome://extensionsin Chrome → enable Developer mode (top right) → Load unpacked → select the unzipped folder
After installing, click the extension icon to open the sidebar and follow the guide to add an AI provider — just like configuring cc-switch or any agent tool.
npm install
npm run dev # WXT dev server; opens Chrome with the extension loaded
npm test # vitest unit tests (SSE parsing, conversation LRU, URL normalization)
npm run compile # tsc type check
npm run build # builds to .output/chrome-mv3/
npm run zip # packages .output/*.zip (for distribution)CC BY-NC 4.0 © Zhang1933
This project is licensed under Attribution-NonCommercial 4.0 International: free to use, modify and share with attribution — commercial use is prohibited.