fastbrowse
Open-source browser agent that cites page quotes for every answer
fastbrowse is a developer tools tool for Developers and Small businesses, offered as open source ($29/mo). Popular alternatives include Omnara, Trigger.dev, Lexmount Browser.
About fastbrowse
fastbrowse is an MIT-licensed browser agent for AI applications, with a hosted service run by Agent Labs, Inc. Given a task, it drives a real Chrome browser through logins, forms and checkouts and returns results backed by verbatim quotes from the pages it visited, along with steps, model calls and cost.
It indexes a page's buttons, links and fields, and Jev, a choice model from TypeSafe, picks the next operation from that list, while a larger LLM plans the task and reads long passages. Secrets are referenced by name and only filled on their allowed site, Bitwarden can supply logins, and irreversible actions pause for approval. It runs on the hosted browser pool, in local Chrome, in Browser Use Cloud, or attached over CDP, with Python and JavaScript SDKs, a CLI, an MCP server and a skill for Codex and Claude Code. Hosted plans include a monthly run balance: Free gives $2, Starter $35, Pro $250 and Scale $1,400.
It fits developers adding web actions to agents who need checkable answers and low model cost. Browser Use is the most direct alternative with a larger community, Browserbase and Lexmount Browser supply cloud browsers rather than an agent, and Skyvern targets form-heavy workflows. On fastbrowse's own 46-task suite it beat the Browser Use agent on success rate and cost, but Browser Use had the faster median run.
fastbrowse launched on Product Hunt on October 30, 2026 as the "fastest open source browser agent" and finished #6 of the day. Buying tip: self-host the open-source version first, then pick a hosted plan by concurrency, since allowances do not roll over.
Key features of fastbrowse
- Indexed page controls with the Jev choice model picking each step
- Answers backed by verbatim page quotes checked before completion
- Scoped secrets resolved only on their permitted site, never in prompts
- Bitwarden CLI logins including one-time codes
- Approval gate that pauses irreversible actions
- Local Chrome, Browser Use Cloud or attach to a running browser via CDP
- Python and JavaScript SDKs, CLI and an MCP server
- Per-run report of steps, model calls and cost
Pros and cons
Pros
- MIT-licensed core that can be self-hosted
- Low model cost per run on the vendor's own benchmark
- Cited quotes make results easy to verify
- Credential handling keeps secrets out of model prompts
- Failed runs from outages, errors or cancellations are not charged
Cons
- Median run time was slower than Browser Use on the vendor's benchmark
- Open-source CLI defaults to a cloud browser needing a Browser Use key
- Monthly run allowances do not roll over
- Irreversible-action classifier can miss some actions, per the vendor
- Runs blocked by sign-in walls or bot checks are still billed
fastbrowse pricing
fastbrowse uses a open source model.
| Plan | Price | Includes |
|---|---|---|
| Free | $0 | $2 of runs/mo, 1 concurrent run, 7-day history |
| Starter | $29 / mo | $35 of runs, 5 concurrent, secrets, schedules, webhooks |
| Pro | $199 / mo | $250 of runs, 25 concurrent, recordings, audit log |
| Scale | $999 / mo | $1,400 of runs, 100 concurrent, queue priority |
| Enterprise | Custom | Dedicated browser fleet, custom retention and residency |
Source: fastbrowse.ai · checked on Oct 31, 2026
Are you the maker of fastbrowse?
Show a price-verified badge on your site. It displays when we last checked your prices on your own pricing page and links back to this page.
Embed code
<a href="https://happyvalley.dev/tools/fastbrowse"><img src="https://happyvalley.dev/api/badge/fastbrowse?v=price" alt="Prices verified on Happy Valley" height="32"></a>
How fastbrowse compares in Developer tools
- Rank by votes
- #2 / 73
- Starting price
- $29
- Free alternatives
- 18
0 votes from members
57% above the category median ($19/mo)
Free or open-source tools in Developer tools
fastbrowse ranks #2 of 73 developer tools tools by community votes and is priced above most tools in the category.
Common use cases
- 1Giving a Claude Code or Codex agent a browser for web tasks
- 2Extracting prices or facts from sites with quoted evidence
- 3Automating checkout or form flows behind a login
- 4Scheduling recurring web checks with webhook results
- 5Exposing a browse tool to Cursor or Claude Desktop through MCP
Best for
Developers who want an open-source browser agent with cited answers, safe credential handling and low per-run model cost.
Not ideal for
Teams that only need managed browser infrastructure or want the largest browser-agent community (Browserbase, Browser Use).
Integrations
- OpenRouter
- Browser Use Cloud
- Bitwarden
- Claude Code
- Codex
- Claude Desktop
- Cursor
- Chrome DevTools Protocol
Our take
fastbrowse is a strong option when you must verify what a browser agent claims, thanks to quote-backed answers and strict secret handling. Start with the free open-source CLI, and compare speed on your own tasks before paying, because its advantage is cost and accuracy rather than raw speed.
FAQ
- What is fastbrowse?
- fastbrowse is a Developer tools tool: Open-source browser agent that cites page quotes for every answer.
- How much does fastbrowse cost?
- fastbrowse is Open source; there is no mandatory paid plan.
- What are the best alternatives to fastbrowse?
- Community-listed alternatives to fastbrowse include Omnara, Trigger.dev, Lexmount Browser, Composio.
- What does fastbrowse integrate with?
- fastbrowse integrates with OpenRouter, Browser Use Cloud, Bitwarden, Claude Code, Codex, Claude Desktop and more.
- Which platforms does fastbrowse support?
- fastbrowse is available on web.
- Who is fastbrowse for?
- Developers who want an open-source browser agent with cited answers, safe credential handling and low per-run model cost.
Alternatives to fastbrowse
See all 10Omnara
▲ 0Open-source platform for running durable AI agents on any model
Open sourceDeveloperschecked Oct 24
Trigger.dev
▲ 0Open-source platform for durable background jobs and AI agents
Open source · $10Developerschecked Oct 29
Cloud browsers for AI agents, powered by the open-source Moli engine
Freemium · $12Developerschecked Oct 26
Composio
▲ 0Tool and auth layer that lets AI agents act in 1,500+ apps
Freemium · $29Developerschecked Oct 22
Gologin
▲ 0Multi-profile browser and cloud browser for accounts and agents
Freemium · $9Agencieschecked Oct 31
NativeShip
▲ 0Builds native n8n, Make, Zapier and Activepieces apps from your API
PaidDeveloperschecked Oct 23
More Developer tools tools

173 free web, DNS, SSL, SEO & developer tools — fast, live, no sign-up
FreeFreelancersTower
▲ 0Desktop Git client for Mac and Windows with undo and PR workflows
Paid · $6Developerschecked Oct 26
Faylee
▲ 0Browser bug recorder that coding agents can read through MCP
Freemium · $15Developerschecked Oct 31
Sentry
▲ 0Error and performance monitoring
Freemium · $29Developerschecked Oct 20
Whiteboard
▲ 0Open-source desktop canvas for reviewing coding agent work
Open sourceDeveloperschecked Oct 25
Snyk
▲ 0Developer security for code and dependencies
Freemium · $25Developerschecked Oct 20
Reviews
No reviews yet. Be the first to share real experience.
Sign in to write a review.