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Welcome to the best simple browser
ChillyOS is a fast and lightweight web browser focused on simplicity, customization, and privacy. Designed for Windows, it offers a clean interface and modern features for a smooth, distraction-free browsing experience.
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Build agents with natural language
Automate any task—from scraping websites to filling out forms—just by describing what you want to do in plain language. BrowserOS translates your words into a repeatable agent that runs locally, giving you custom automation without code.
ChatGPT, Claude, Gemini on any website
Summarize articles, draft documents, or get answers without ever leaving the page you are on by opening your favorite AI model in a side panel – ChatGPT, Gemini, Claude or Grok!
Install any MCP server
BrowserOS comes with pre-installed MCP servers for Gmail, Calendar, Docs, Sheets, and Notion. One-click install any other MCP server — your browser becomes the command center for all work tools.
Next-gen productivity
Turn your browser into a second brain — search history and bookmarks by meaning, not just keywords. The built-in highlighter keeps important bits right where you found them. No more lost research.
True privacy with local LLMs
Run models locally with Ollama or bring your own API keys for cloud models. Your company and work data stay on your machine unless you choose to send it out.
Your executive assistant
Our built-in AI assistant connects to your work apps like Gmail and Calendar to draft replies and schedule meetings. You focus on the real work — your browser handles the rest.
What makes BrowserOS different from other browsers?
What AI models does BrowserOS support?
What operating systems does BrowserOS support?
Is BrowserOS compatible with Chrome extensions?
How much does BrowserOS cost?
Can I contribute to BrowserOS development?
The Open source agentic browser
BrowserOS is an AI-powered browser that turns your words into actions. Just describe your task in plain language — it handles all the clicking, typing, and navigating for you. A privacy-first alternative to Chrome, reimagined for the AI era.
