22 open-source Other AI projects

Other AI (AI Tools & LLM Clients): open-source projects that exist because someone reverse engineered a closed product, sorted by GitHub stars.

1. claude-desktop-zh-cn★ 7,979 · active · PowerShell

   Chinese localization patch for Claude Desktop on macOS, Windows and Linux

2. claude-desktop-debian★ 5,484 · active · Shell

   Repackages the Windows Claude Desktop app to run on Debian/Linux

3. chatgpt-exporter★ 2,834 · active · TypeScript

   Export ChatGPT conversation history from the web app

4. Open Claude UI★ 1,447 · active · TypeScript

   React components and design-system notes derived from REA investigation of the Claude app UI

5. convoviz★ 888 · active · Python

   Converts ChatGPT export ZIPs into Markdown with media and usage visualizations

6. cc-desktop-switch★ 801 · active · Python

   Configures DeepSeek, Kimi, GLM and Bailian providers inside Claude Desktop

7. claude-desktop_win-zh_cn★ 673 · active · Python

   Claude Desktop Windows zh-CN patch translating keys and JS chunk labels

8. GPTZero (open-source)★ 608 · active · Python

   Open-source reimplementation of the GPTZero AI-text detector

9. S3Tokenizer★ 535 · active · Python

   Reverse engineered reimplementation of CosyVoice's supervised semantic speech tokenizer

10. openteam★ 263 · active · Go

    Open-source implementation of the OpenCat Team server

11. open-claude-in-chrome★ 259 · active · HTML

    Reverse-engineered Claude in Chrome extension, open source for any Chromium browser

12. claude-desktop-rtl-patch★ 210 · active · PowerShell

    CSS patch adding RTL support to Claude Desktop on Windows

13. anthropic-tokenizer★ 173 · slowing · Python

    Approximates the Claude 3 tokenizer by inspecting the generation stream

14. claude-export★ 164 · slowing · JavaScript

    Browser script to export Claude.ai chats to Markdown, JSON or PNG

15. ModelLink★ 143 · active · Rust

    Local proxy routing third-party models through Claude Desktop

16. Claude-Conversation-Exporter★ 130 · active · JavaScript

    Chrome extension for bulk-exporting Claude.ai conversations

17. claude-chromium-native-messaging★ 83 · active · Shell

    Makes Claude in Chrome's native messaging work in Brave, Arc, Vivaldi, Edge

18. chatgpt-rtl★ 60 · active · JavaScript

    RTL and UI patcher for the ChatGPT desktop application

19. grokipedia-api★ 51 · active · Python

    Unofficial API for xAI's Grokipedia

20. chatgpt_desktop_ubuntu★ 9 · active · Shell

    Repackages the ChatGPT Windows MSIX as an Ubuntu .deb

21. claude-code-background★ 5 · active · HTML

    Offline reimplementation of the Claude desktop app's glyph-wind session background

22. Mnemos★ 5 · active · C#

    Reverse-engineered Claude Desktop's local storage to add persistent memory