CompozyOS coordinates agent command line tools as a team that shares project memory and tasks.
Open source
24 alternativesSteel Browser
Steel Browser provides a browser API and sandbox for automating web tasks with AI agents.
About Steel Browser
Steel Browser is an open-source browser API and sandbox for automating web tasks with AI agents and apps. It manages sessions, pages, and browser processes, allowing programmatic control of Chrome instances through Puppeteer, Playwright, Selenium, and CDP, with support for session state, proxies, extensions, and page conversion to markdown, screenshots, or PDFs.
It can be used through Steel Cloud, deployed to a cloud provider, or run locally with Docker. The project is in public beta and is still evolving.
Key features
- Control Chrome instances via Puppeteer, Playwright, Selenium and CDP
- Maintain sessions with cookies and local storage across requests
- Built-in proxy chain management for IP rotation
- Stealth plugins and fingerprint management
- Convert pages to markdown, screenshots, PDFs and readability view
- Load custom Chrome extensions for added functionality
Best for: Developers building AI agents or apps that need programmatic web interaction without managing browser infrastructure.
Good for
- Open-source codebase that can be self-hosted or deployed to cloud providers
- Works with existing automation libraries including Puppeteer, Playwright and Selenium
- Includes session management, proxy support and page-conversion tools
Watch out for
- In public beta and evolving, so behavior and APIs may change
- Local use requires Docker setup, with extra configuration on Mac Silicon
Steel Browser at a glance
- Category
- AI & Machine Learning › AI Agent Frameworks
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Steel Browser FAQ
What deployment options are available?
Create a Steel Cloud account, deploy the instance to a cloud provider such as Railway or Render, or run it locally.
How can I run Steel Browser locally?
Run the pre-built Docker image with docker run -p 3000:3000 -p 9223:9223 ghcr.io/steel-dev/steel-browser, which starts the server on port 3000 and the UI at /ui.
Which automation libraries can connect to it?
It supports connections via Puppeteer, Playwright, or Selenium using Puppeteer and CDP for Chrome control.
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