Browser Use is a San Francisco-based developer infrastructure company that builds an open-source Python library and managed cloud platform enabling AI agents to operate real web browsers. The project was launched in November 2024 and rapidly became one of the fastest-growing developer tools of the year, accumulating tens of thousands of GitHub stars within months.
The library exposes a high-level API that converts natural-language instructions into deterministic browser actions, combining LLM reasoning with DOM-level element extraction so that agents can fill forms, click buttons, scrape data, and complete multi-step workflows on dynamic websites. The hosted cloud product layers managed browsers, stealth fingerprinting, and proxy rotation on top of the open-source core for teams running automation at scale.
Browser Use was founded by Magnus Müller and Gregor Zunic, who met at a hacker house at ETH Zurich and started the project after running into the limitations of existing browser-automation stacks while building agent prototypes. The company joined Y Combinator's Winter 2025 batch.
In March 2025 the team raised a $17 million seed round led by Felicis, with participation from A Capital, SV Angel, Nexus Venture Partners, and angel investor Paul Graham. The capital is being used to expand the engineering team, harden the cloud platform, and improve agent reliability on complex, JavaScript-heavy sites.
Users of the open-source library and cloud service reportedly include engineering teams at Airbnb, Amazon, and Anthropic, who use it for QA automation, agentic research workflows, and data extraction. Browser Use competes with Browserbase, Anchor Browser, and Hyperbrowser, but differentiates through its permissively licensed open-source core and an active developer community.