Browser & Computer-Use AgentsfreeNew

Nanobrowser

Chrome extension that runs a multi-agent team to automate browsing tasks

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What Nanobrowser does

  • Chrome extension that runs a multi-agent team to automate browsing tasks
  • Uses your own API keys or local models, so nothing extra is charged
  • Everything runs locally in the browser and is open source
  • Free alternative to paid browser operator agents

Nanobrowser — straight answers

What is Nanobrowser?

Nanobrowser is listed under Browser & Computer-Use Agents, in the AI Agents & Automation category on Flocci AI Tools. Chrome extension that runs a multi-agent team to automate browsing tasks. It is free, with no paid plan attached, and it lives at github.com.

Is Nanobrowser free?

Nanobrowser is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 399 entries on Flocci AI Tools with no upgrade path built in.

What can Nanobrowser do?

Nanobrowser does 4 things the catalog singles out: Chrome extension that runs a multi-agent team to automate browsing tasks; uses your own api keys or local models, so nothing extra is charged; everything runs locally in the browser and is open source; free alternative to paid browser operator agents.

What is the best free alternative to Nanobrowser?

Alibaba Page Agent is the closest free alternative: it sits in the same Browser & Computer-Use Agents sub-category and is free. Amazon Nova Act SDK, BrowserOS and MagenticLite also start free. The full list is on the alternatives page.

See the full list →

Nanobrowser alternatives

Compare all alternatives →

Browser Use

Browser & Computer-Use Agents
freemium
  • Open-source library to run browser agents locally for free
  • Hosted agent API billed per token + browser-hour
  • Managed browser infrastructure for scaling agents
Visit

Browserbase

Browser & Computer-Use Agents
freemium
  • Free tier: 1 browser-hour/month, 3 concurrent browsers, 3 agent runs
  • Creator of Stagehand, an AI-native browser automation framework
  • Agent identity management for logging into restricted sites
Visit

Skyvern

Browser & Computer-Use Agents
freemium
  • Vision+LLM based automation that survives UI/DOM changes (no brittle selectors)
  • 22,700+ GitHub stars, self-hostable via Docker
  • Used by 500+ enterprises for workflow automation on arbitrary sites
Visit

Steel.dev

Browser & Computer-Use Agents
freemium
  • Open-source browser API for fleets of cloud browsers
  • Free launch tier with one-time starting credits, no card required
  • Built-in auto-CAPTCHA solving and proxy management, sessions up to 24h
Visit

Firecrawl

Browser & Computer-Use Agents
freemium
  • Converts any site into clean LLM-ready markdown/structured data
  • Free tier: 1,000 credits/month, no card required
  • Crawl, scrape, map and search endpoints purpose-built for RAG/agent pipelines
Visit

Playwright MCP

Browser & Computer-Use Agents
free
  • Official Microsoft MCP server exposing Playwright browser control to any MCP client
  • Uses accessibility snapshots instead of screenshots/vision, faster and more deterministic
  • 36k+ GitHub stars, Apache-2.0 licensed
Visit

Head-to-head comparisons

Nanobrowser vs Browser UseNanobrowser vs BrowserbaseNanobrowser vs SkyvernNanobrowser vs Steel.devNanobrowser vs FirecrawlNanobrowser vs Playwright MCP