fastbrowse launches open-source browser agent

fastbrowse’s strongest idea is constraining agents to controls that actually exist on the page, making browser automation faster, cheaper, and easier to audit.

• –Maker-reported benchmarks show 99.2% task success and substantially lower median costs than Browser Use’s hosted agent.
• –DOM-based action selection can reduce hallucinated selectors, retries, latency, and model spend.
• –Cited answers, step traces, secret isolation, and MIT licensing make it compelling for authenticated developer workflows.
• –The approach may be less reliable on canvas-heavy interfaces, custom controls, or rapidly changing DOMs.