StableBrowse

StableBrowse is a Y Combinator-backed company that browser for AI agents. Based in San Francisco, USA, the company participated in the Spring 2026 batch of Y Combinator.

We are making the world's fastest and lightest browser for your AI agents. Agents don't need to see UIs like us humans do. We remove the costly visual rendering stack, giving agents a semantic understanding of the web instead of brittle interfaces. Your agents can perform deep research, large-scale scraping, and complex automation:more efficiently with our browser that turns the web into a native protocol for LLMs.

StableBrowse was part of Y Combinator's Spring 2026 cohort, has a team of approximately 4 employees, and is actively operating.