fastbrowse
Fastest open source browser agent
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A fast open-source browser agent. It reads every button, link and field on the page and has a System One model (ex: jev) pick the next step from that list. If it's unsure, it falls back to a standard model model. Fast, cheap, and every answer provides a citation.
PH · launched Oct 30, 2026 · 138 upvotes (top 1%) · 1 view
Niche: ai browser agents · 93 launches, 4 in the last 7 days ▼ -60% · Explore this niche →
Category and tags
- Horizontal
- Agent / copilot
- Developer
- AI-native
- Hobby / open-source project
- Open Source
- Developer Tools
- Artificial Intelligence
Visit website ↗ Source listing ↗
Could you build this?
Partial A browser agent that parses page elements and asks an LLM for the next action is buildable with Playwright and existing model APIs. The claimed speed and cost advantage depends on a custom fast model ("System One"), which a solo builder cannot easily replicate.
What it would actually take: A baseline version uses a headless browser (Playwright), a DOM or accessibility-tree serializer, and a fallback to a frontier model. The hard part is training or fine-tuning a small, fast action-selection model that is reliable enough to beat general models on speed and cost. That requires ML engineering, a labelled set of browsing trajectories, and evaluation infrastructure.
Competitors
Other products that read as similar to this one : 188 launches clear the similarity bar, closest 8 shown.
Attention rank: #6 of 189 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 359 days after the earliest competitor.
- fastbrowse · github · 2026-09-17 · 84 upvotes · similarity 0.61
- Jev Ultrafast Agent · ph · 2026-10-10 · 1 upvotes · similarity 0.53
- Noa · ph · 2026-10-27 · 3 upvotes · similarity 0.49
- FastVibe · ph · 2026-10-21 · 1 upvotes · similarity 0.49
- ts-browser-agent · github · 2026-09-18 · 31 upvotes · similarity 0.48
- BrowserAct · ph · 2026-06-25 · 561 upvotes · similarity 0.46
- Browser Arena · ph · 2026-04-08 · 175 upvotes · similarity 0.45
- Tabductor · ph · 2026-10-17 · 2 upvotes · similarity 0.45
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.