Tabstack Browser Automation
Automate the web in your app or agent, no browser to host
In plain words
Tabstack Browser Automation is an API that automates web tasks by driving a real browser based on plain English instructions. Users describe what they need done—navigating sites, filling forms, clicking through multi-step flows—and receive results in a single API call. The service includes both browser and LLM capabilities with no hosting required. It uses accessibility-tree automation to reduce token usage by 60-80% compared to screenshot-based approaches. Built by Mozilla, it doesn't train on user data and requires no installation or framework setup.
written from the facts on this page · September 2026
From the sources
Give /automate a task in plain English and it drives a real browser to do it: navigate a site, click through a multi-step flow, fill a form, reach a page that only renders after interaction. The result streams back in one API call. It's an API you call, not a framework you install. Browser and LLM included, nothing to host, no concurrency ceiling. Accessibility-tree automation spends 60 to 80% fewer tokens than screenshot-based agents. Built by Mozilla. Ephemeral, no training on your data.
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