steel-browser

AI Agents & Assistants

Open Source Browser API for AI Agents & Apps. Steel Browser is a batteries-included browser sandbox that lets you automate the web without worrying about infrastructure.

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TypeScript Latest v0.5.3-beta · 1mo ago Security brief →

Features

Full browser control via Puppeteer and CDP
Session management with cookies and local storage
Built‑in proxy chain for IP rotation

Recent releases

View all 2 releases →

v0.5.3-beta New feature 1mo

Notable features

Session lifecycle hooks for plugins (onSessionStart, onBeforeSessionEnd, onAfterSessionEnd)
Fullscreen option for browser launch

Full changelog

Improvements

8ccf2d: feat: add onSessionStart/onBeforeSessionEnd/onAfterSessionEnd plugin hooks (#275) (@jagadeshjai)
db9daa: feat: add |fullscreen| option to open the browser in fullscreen mode (#290) (@jagadeshjai)

Bug Fixes

c1a55e: fix: avoid global Node reference in table plugin (#265) (@junhsss)
221be4: fix: pass deviceConfig (#272) (@junhsss)
4c7822: fix: always run session end hooks on all shutdown paths (#277) (@jagadeshjai)
9bc3eb: fix: wrap live session script in IIFE to avoid global scope collisions (#273) (@majiayu000)
dc585b: fix: guard onBrowserReady against concurrent shutdown (#274) (@junhsss)

Housekeeping

e541ba: chore: added typed browser extra and proxy factory interfaces (#288) (@danew)
d6b15d: refactor(file-service): improve file archiving concurrency (#291) (@fukouda)