fastbrowse

Browser automation without screenshots — a small model picks from the page, with receipts.

Open Source Automation & Agents
Visit Website ↗ by agent-labs-dev

What is fastbrowse?

fastbrowse is an open-source browser agent that chooses actions from a page model instead of screenshots. It reads every button, link and field on a page and has a small choice model (Jev) pick the next step from that list, falling back to a full LLM only when unsure, with a citation for every answer.

It is MIT-licensed and installable as a real package (PyPI 0.3.2), not a demo page. No product logo exists in the repository, so the directory shows a letter tile until the project ships one.

Key features

  • Reads every button, link and field on a page into a page model
  • A small choice model (Jev) picks the next step from that list
  • No screenshots needed for action selection
  • Falls back to a full LLM only when unsure
  • A citation for every answer

Pros

  • Page-model choices avoid screenshot costs and latency
  • Citations make agent answers checkable
  • MIT licence with a real installable package
  • LLM fallback only when the small model is unsure

Cons

  • You supply your own model API keys, so running costs and setup are yours
  • Beta software (version 0.3.2) launched October 2026, with a short track record

fastbrowse at a glance

PricingOpen Source
CategoryAutomation & Agents
Companyagent-labs-dev
Best forDevelopers building browser agents that need cited, low-cost actions
Official websitegithub.com
browser-agentweb-automationcitationsopen-sourcejev

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fastbrowse FAQs

What is fastbrowse?

fastbrowse is an open-source browser agent that chooses actions from a page model instead of screenshots. It reads every button, link and field on a page and has a small choice model (Jev) pick the next step from that list, falling back to a full LLM only when unsure, with a citation for every answer.

What are the main features of fastbrowse?

fastbrowse offers Reads every button, link and field on a page into a page model, A small choice model (Jev) picks the next step from that list, No screenshots needed for action selection, Falls back to a full LLM only when unsure and A citation for every answer.

How much does fastbrowse cost?

fastbrowse is open source, so the software itself is free to download, use and self-host. Your only costs are the infrastructure you run it on and any paid services you connect to it.

What are the pros and cons of fastbrowse?

Strengths of fastbrowse include Page-model choices avoid screenshot costs and latency; Citations make agent answers checkable; MIT licence with a real installable package. On the downside, You supply your own model API keys, so running costs and setup are yours; Beta software (version 0.3.2) launched October 2026, with a short track record.