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DeepLifeStudio

DeepLifeStudio/DeepSeekAI

Open-source Chrome/Edge browser extension that puts a floating DeepSeek-powered chat assistant on any web page, using your own API key.

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Last commit
3 months ago

What is it?

DeepSeekAI is a browser extension that brings a DeepSeek-based chat assistant into any web page. Selecting text shows a quick-action bubble with Chat, Copy, Translate, Explain, Summarize, Email and Analyze options, and keyboard shortcuts open a floating chat window that streams answers and renders Markdown, math and code.

Users supply their own API key. Besides the official DeepSeek endpoint, the extension lists several hosted providers and accepts any custom base URL that exposes an OpenAI-compatible /chat/completions endpoint. Keys and settings are stored in chrome.storage.sync, and requests go directly from the extension's background worker to the provider you configure.

The project is built with Manifest V3 and bundled with webpack, and it targets Chromium-based browsers. A popup handles provider, model, language and system prompt settings, and the repository includes build scripts for producing Chrome and Edge store packages.

Key features

  • 01Selection quick-action bubble with Chat, Translate, Explain, Summarize, Email and Analyze templates
  • 02Floating chat window that can be dragged, resized and pinned
  • 03Streaming responses with stop and regenerate controls
  • 04Markdown, KaTeX math and syntax-highlighted code rendering
  • 05Multiple API providers plus custom OpenAI-compatible endpoints
  • 06Configurable keyboard shortcuts and context menu entry

Use cases

  • Asking DeepSeek questions about text while reading a web page
  • Translating or summarizing selected passages without leaving the current tab
  • Using your own API key with a self-hosted or OpenAI-compatible model endpoint

Quick start

  1. 1

    Install the extension from the Chrome Web Store

  2. 2

    Install dependencies for a manual build

    pnpm install
  3. 3

    Build the production bundle into dist/

    pnpm run build
  4. 4

    In chrome://extensions enable Developer mode, click Load unpacked, and pick the dist folder

Things to know

  • You must supply your own API key from DeepSeek or another compatible provider.
  • Manual builds require Node.js 18+ and pnpm or npm.

In collections

Chrome & browser extensionsStatic site generators & documentation tools

Topics

#browser-extension#chatgpt-client#deepseek#llm#chrome-extension#markdown#typescript-free-javascript#ai-assistant

FAQ

What is DeepSeekAI?
Open-source Chrome/Edge browser extension that puts a floating DeepSeek-powered chat assistant on any web page, using your own API key. DeepSeekAI is a browser extension that brings a DeepSeek-based chat assistant into any web page. Selecting text shows a quick-action bubble with Chat, Copy, Translate, Explain, Summarize, Email and Analyze options, and keyboard shortcuts open a floating chat window that streams answers and renders Markdown, math and code.
Is DeepSeekAI free to use? What license does it have?
DeepSeekAI is open source under the MIT license. Check the license terms before using it in commercial products.
Is DeepSeekAI still maintained?
Updated within 6 months. The last commit to DeepSeekAI was on Aug 11, 2026.
What can I use DeepSeekAI for?
Asking DeepSeek questions about text while reading a web page Translating or summarizing selected passages without leaving the current tab Using your own API key with a self-hosted or OpenAI-compatible model endpoint
How do I install DeepSeekAI?
Install the extension from the Chrome Web Store Install dependencies for a manual build: pnpm install Build the production bundle into dist/: pnpm run build In chrome://extensions enable Developer mode, click Load unpacked, and pick the dist folder
Where can I get DeepSeekAI?
The source code and installation instructions are on GitHub: https://github.com/DeepLifeStudio/DeepSeekAI

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