8 Best BrowserOS Alternatives in 2026 (Open Source)
BrowserOS — 🌐 The open-source Agentic browser; alternative to ChatGPT Atlas, Perplexity Comet, Dia. Agents work with real user logins in a dedicated browser environment rather than headless sandboxes.
These 8 open-source tools do the same job. They are ordered by how closely they match BrowserOS, with live GitHub data so you can see which projects are actively maintained.
| Tool | GitHub stars | Stars / 30d | Last commit |
|---|---|---|---|
| BrowserOS(original) | 13.8k | +1,149 | 2026-09-30 |
| ego lite | 16.7k | +1,394 | 2026-09-17 |
| Browser Use Web UI | 16.6k | +1,384 | 2026-05-15 |
| OpenCLI | 29.7k | +2,477 | 2026-09-24 |
| Stagehand | 25.5k | +2,124 | 2026-09-30 |
| Browser-Use | 116.8k | +5,151 | 2026-09-26 |
| nanobrowser | 13.8k | +1,154 | 2026-08-18 |
| Taxy AI | 1.3k | +1 | 2025-01-15 |
| Browser Harness | 18.2k | +1,520 | 2026-09-07 |
1. ego lite
The fastest browser for AI agents to run browser automation, built for sharing your logged-in browser state with your AI agents, like Codex or Claude Code, with
What sets it apart: A browser built from the start for shared use between a human and AI agents, with direct state sharing and isolated execution spaces.
Best for: Running AI agents that require web automation with real user sessions; Users wanting agents to act on logged-in websites without manual setup; Parallel browsing where agents work without interrupting the user
2. Browser Use Web UI
🖥️ Run AI Agent in your browser.
What sets it apart: Built on browser-use foundation with custom browser support and persistent sessions for complete AI interaction history.
Best for: Browser automation with AI agents; Testing web interactions with agents; Persistent agent sessions
3. OpenCLI
Make Any Website into CLI & Use your logged-in browser by AI agent.
What sets it apart: Enables AI agents to operate websites through a user's logged-in browser session with deterministic interfaces.
Best for: Automating logged-in browser sessions; Creating deterministic interfaces for AI agents; Web scraping with authentication
4. Stagehand
The SDK to extract data and interact with any site on the web. Get started with Claude Code, Codex, Eve, Mastra, and more.
What sets it apart: Maintains persistent browser sessions and returns real selectors to keep credentials secure from AI models.
Best for: Building web scraping agents; Creating automated browser workflows; Extracting structured data from websites
5. Browser-Use
🌐 Make websites accessible for AI agents. Automate tasks online with ease.
What sets it apart: Unlike Selenium/Playwright (code-based browser automation), Browser Use enables natural language browser control with vision AI — the first open-source library purpose-built for LLM-driven web agent tasks
Best for: Automating repetitive web tasks like form filling, data extraction, and e-commerce workflows; QA teams needing AI-driven browser testing without writing Selenium/Playwright scripts
6. nanobrowser
Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator.
What sets it apart: Open-source alternative to OpenAI Operator that runs locally in your browser with multi-agent collaboration
Best for: developers seeking browser automation; users needing web workflow automation; those wanting privacy-focused AI agents
7. Taxy AI
Automate your browser with GPT-4
What sets it apart: Chrome extension using GPT-4 to parse simplified DOM and execute click/setValue actions for natural language browser automation
Best for: ai-browser-automation-research; repetitive-browser-task-automation; web-interaction-prototyping
8. Browser Harness
Browser Harness | Self-healing harness that enables LLMs to complete any task.
What sets it apart: Self-healing harness that writes missing helpers as the agent works, improving with every task
Best for: Building web automation agents; Creating browser-based AI workflows; Developing self-improving browser tools
FAQ
- What are the best alternatives to BrowserOS?
- The closest open-source alternatives to BrowserOS are ego lite, Browser Use Web UI and OpenCLI, followed by Stagehand, Browser-Use and nanobrowser. They are ranked by how closely they match what BrowserOS does.
- Which BrowserOS alternative is the most popular?
- Browser-Use has the most GitHub stars among BrowserOS alternatives, with 116,826 stars.
- Which BrowserOS alternative is the most actively maintained?
- By recent activity, Browser-Use (509 commits in the last 90 days) is the most actively developed alternative.