YC-backed Chromium fork with native AI support. 314 HN points shows strong community interest. Comments flagged prompt injection risk as a known concern.
BrowserOS / Nxtscape
watchChromium fork with native AI agent support. YC-backed. Privacy-first agentic browser with built-in AI capabilities. Supports 11+ LLM providers including Ollama and LMStudio for local models. Only credible open-source alternative to ChatGPT Atlas, Perplexity Comet, and Dia.
58/100
Trust
10.0K+
Stars
3
Evidence
Repo health
10h ago
Last push
29
Open issues
954
Forks
12
Contributors
Editorial verdict
Lane 4 anchor (consumer agentic browsers) — 9,982 stars, YC-backed, 47 releases in ~10 months (v0.43.0 on 2026-03-12), AGPL-3.0. MCP server integration (31 tools) in v0.42.0, Skills/Memory/SOUL.md in v0.43.0. Demonstrably not vaporware. Thin contributor count (~10) and AGPL license limit enterprise adoption.
Source
GitHub: nxtscape/nxtscape
Public evidence
Second HN thread under the BrowserOS brand. Shows continued community interest after rebranding from Nxtscape.
v0.43.0 (2026-03-12) adds Skills, Memory, and SOUL.md — agent-native primitives uncommon in Chromium forks. v0.42.0 added MCP server integration with 31 tools. Weekly release cadence confirms active development.
How does this compare?
See side-by-side metrics against other skills in the same category.
Where it wins
Chromium fork with native AI agent integration — not a plugin or overlay
YC-backed with weekly releases: 47 releases in ~10 months, v0.43.0 on 2026-03-12
31-tool MCP server integration (v0.42.0); Skills, Memory, SOUL.md in v0.43.0
Supports 11+ LLM providers including local models (Ollama, LMStudio) — browsing history stays on device
314-point HN (Jun 2025) + 88-point thread (Jan 2026 as BrowserOS)
Only credible open-source alternative to Atlas/Comet/Dia
Where to be skeptical
~10 contributors despite YC backing — thin team for a browser product
AGPL-3.0 license may block enterprise adoption
Different product category (agentic browser, not automation tool or SDK)
HN criticism flagged prompt injection risk
9,982 stars — below 10K milestone, well short of category leaders
Ranking in categories
Know a better alternative?
Submit evidence and we'll run the full pipeline.
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Raw GitHub source
GitHub README peek
Constrained peek so you can sanity-check the source material without leaving the site.
<br></br> <br></br> <a href="https://files.browseros.com/download/BrowserOS.dmg"> </a> <a href="https://files.browseros.com/download/BrowserOS_installer.exe"> </a> <a href="https://files.browseros.com/download/BrowserOS.AppImage"> </a> <a href="https://cdn.browseros.com/download/BrowserOS.deb"> </a> <br />
</div>🌐 BrowserOS is an open-source Chromium fork that runs AI agents natively. The privacy-first alternative to ChatGPT Atlas, Perplexity Comet, and Dia.
🔒 Use your own API keys or run local models with Ollama. Your data never leaves your machine.
💡 Join our Discord or Slack and help us build! Have feature requests? Suggest here.
Quick start
-
Download and install BrowserOS:
- macOS
- Windows
- Linux (AppImage)
- Linux (Debian)
-
Import your Chrome data (optional)
-
Connect your AI provider — use Claude, OpenAI, Gemini, or local models via Ollama and LMStudio.
-
Start automating!
What makes BrowserOS special
- 🏠 Feels like home — same Chrome interface, all your extensions just work
- 🤖 AI agents that run on YOUR browser, not in the cloud
- 🔒 Privacy first — bring your own keys or run local models with Ollama. Your browsing history stays on your machine
- 🤝 BrowserOS as MCP server — control the browser from
claude-code,gemini-cli, or any MCP client (31 tools) - 🔄 Workflows — build repeatable browser automations with a visual graph builder
- 📂 Cowork — combine browser automation with local file operations. Research the web, save reports to your folder
- ⏰ Scheduled Tasks — run the agent on autopilot, daily or every few minutes
- 💬 LLM Hub — compare Claude, ChatGPT, and Gemini side-by-side on any page
- 🛡️ Built-in ad blocker — 10x more protection than Chrome with uBlock Origin + Manifest V2 support
- 🚀 100% open source under AGPL-3.0
Demos
🤖 BrowserOS agent in action
<br/><br/>
🎇 Install BrowserOS as MCP and control it from claude-code
https://github.com/user-attachments/assets/c725d6df-1a0d-40eb-a125-ea009bf664dc
<br/><br/>
💬 Use BrowserOS to chat
https://github.com/user-attachments/assets/726803c5-8e36-420e-8694-c63a2607beca
<br/><br/>
⚡ Use BrowserOS to scrape data
https://github.com/user-attachments/assets/9f038216-bc24-4555-abf1-af2adcb7ebc0
<br/><br/>
Why We're Building BrowserOS
For the first time since Netscape pioneered the web in 1994, AI gives us the chance to completely reimagine the browser. We've seen tools like Cursor deliver 10x productivity gains for developers—yet everyday browsing remains frustratingly archaic.
You're likely juggling 70+ tabs, battling your browser instead of having it assist you. Routine tasks, like ordering something from amazon or filling a form should be handled seamlessly by AI agents.
At BrowserOS, we're convinced that AI should empower you by automating tasks locally and securely—keeping your data private. We are building the best browser for this future!
How we compare
<details> <summary><b>vs Chrome</b></summary> <br> While we're grateful for Google open-sourcing Chromium, but Chrome hasn't evolved much in 10 years. No AI features, no automation, no MCP support. </details> <details> <summary><b>vs Brave</b></summary> <br> We love what Brave started, but they've spread themselves too thin with crypto, search, VPNs. We're laser-focused on AI-powered browsing. </details> <details> <summary><b>vs Arc/Dia</b></summary> <br> Many loved Arc, but it was closed source. When they abandoned users, there was no recourse. We're 100% open source - fork it anytime! </details> <details> <summary><b>vs Perplexity Comet</b></summary> <br> They're a search/ad company. Your browser history becomes their product. We keep everything local. </details> <details> <summary><b>vs ChatGPT Atlas</b></summary> <br> Your browsing data could be used for ads or to train their models. We keep your history and agent interactions strictly local. </details>Contributing
We'd love your help making BrowserOS better!
- 🐛 Report bugs
- 💡 Suggest features
- 💬 Join Discord
- 🐦 Follow on Twitter
License
BrowserOS is open source under the AGPL-3.0 license.
Credits
- ungoogled-chromium - BrowserOS uses some patches for enhanced privacy. Thanks to everyone behind this project!
- The Chromium Project - At the core of BrowserOS, making it possible to exist in the first place.
Citation
If you use BrowserOS in your research or project, please cite:
@software{browseros2025,
author = {Sonti, Nithin and Sonti, Nikhil and {BrowserOS-team}},
title = {BrowserOS: The open-source Agentic browser},
url = {https://github.com/browseros-ai/BrowserOS},