Sieve
Developer Tool
A virtual browser for AI agents. No rendering, no Chromium. Parses HTML, builds accessibility trees, handles clicks, forms, and cookies.
TypeScript
Bun
AI Agents
Web Scraping
Accessibility
Open Source
Key Features
- Sub-millisecond startup vs 500ms for headless Chrome
- 13KB memory per page vs 50-200MB for real browsers
- 500K+ concurrent pages on 8GB RAM
- Full accessibility tree generation for agent reasoning
- Puppeteer-like API for clicks, form fills, and navigation
- Serializable page state with instant snapshot and restore