#1212th of 24 in Chat UIs
chatgptbox
Browser extension that adds an LLM chat panel and selection tools to any page
- Stars
- 10.8k
- License
- MIT
- Last commit
- Nov 2026
- Last release
- Nov 2026
- Language
- JavaScript
10,559 on 21 Apr 202610,773 on 10 Nov 2026
From GitHub's daily star counts.
Checked on GitHub.
Overview
ChatGPTBox is a JavaScript browser extension that opens a chat dialog on any page (Ctrl+B), summarizes pages from the right-click menu, and adds selection tools for translation, polishing and code explanation. It connects to ChatGPT web APIs, GPT-3.5/4, Claude, Moonshot, Azure and self-hosted endpoints, and reaches Ollama, LiteLLM or OpenRouter through its Custom Model mode.
Who it is for: Users who want an LLM side panel and page tools inside their browser
Strengths
- Installs on Chrome, Edge, Firefox, Safari and Android
- Site integrations for search engines, Reddit, YouTube, GitHub, GitLab, StackOverflow, Zhihu and Bilibili
- Custom Model mode works with OpenAI-compatible backends such as Ollama
- Sends prompts only when an AI feature is triggered; few fetch calls to audit
Weaknesses
- Does not run models itself; needs an external API or local server
- No user accounts or server-side chat history; it is a client-side extension
- Other providers need a proxy such as LiteLLM or one-api to use Custom Model
- Safari and Android installs follow manual steps on the wiki
What it needs
- no GPU
- Needs Browser (Chrome, Edge, Firefox, Safari or Android), LLM API key or endpoint
- Models: ChatGPT web API, GPT-3.5, GPT-4, Claude, New Bing
Quick answers
Is chatgptbox open source?
Yes. Its code is on GitHub under the MIT license.
Does chatgptbox need a GPU?
No, it runs without one.
Also in Chat UIs
See all 24| Rank | Project | Score |
|---|---|---|
| 1 | Open WebUISelf-hosted web UI for Ollama and OpenAI-compatible models with users and RAG | 89 out of 100 |
| 2 | LobeHubMulti-agent chat workspace connected to team IM apps and 40+ model providers | 86 out of 100 |
| 3 | OnyxTeam knowledge search and chat that indexes 50+ connected apps with permissions | 86 out of 100 |
| #4 | AnythingLLMDocument chat app with agents, workspaces and many LLM and vector DB backends | 84 out of 100 |
| #5 | LibreChatSelf-hosted multi-provider chat UI with agents, MCP tools and multi-user auth | 84 out of 100 |