Open-Source AI · Browser & computer-use agents

Stagehand vs Nanobrowser

Stagehand vs Nanobrowser compared for 2026 — features, license, ease of use, performance and which one to choose. AI browser automation on top of Playwright vs Multi-agent web automation in your own browser.

Updated regularly · curated by OpenSourceAI.tech

Choose Stagehand for devs blending code and AI browsing. Choose Nanobrowser for an OpenAI-Operator-style agent you fully control.

Stagehand vs Nanobrowser at a glance

SpecStagehandNanobrowser
CategoryBrowser & computer-use agentsBrowser & computer-use agents
TypeBrowser automation frameworkChrome extension agent
LicenseMITApache-2.0
Runs locallyCloud-optionalPartial
Primary languageTypeScriptTypeScript
Ease of useIntermediateBeginner
Best fordevs blending code and AI browsingan OpenAI-Operator-style agent you fully control
GitHub stars23.5k13.5k

How Stagehand and Nanobrowser score

🤝 Too close to call — Stagehand and Nanobrowser land within a hair (4.1 vs 3.9 / 5). Pick on fit, not on score.
CriterionStagehandNanobrowser
Popularity3.53.0
Maintenance5.03.0
Ease of use3.55.0
Privacy3.53.5
License freedom5.05.0

Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.

What each one is

Stagehand

Browser automation framework · MIT

Stagehand is an AI browser-automation framework that lets you mix precise Playwright code with natural-language actions, for reliable and flexible web agents.

  • Combine code with natural-language steps
  • Built on Playwright for reliability
  • Great developer experience
See the Stagehand page →

Nanobrowser

Chrome extension agent · Apache-2.0

Nanobrowser is an open Chrome extension where a planner and a navigator agent cooperate to browse and complete web tasks — running in your existing browser with your own API keys.

  • Runs in your real browser — sessions and logins included
  • Planner + navigator multi-agent design
  • Your keys, your data, zero subscription
See the Nanobrowser page →

Key differences

Stagehand is browser automation framework, while Nanobrowser is chrome extension agent. Their licenses differ (MIT vs Apache-2.0), which matters if you ship a commercial product. Stagehand leans more intermediate-friendly, whereas Nanobrowser is more suited to beginner users. They also differ in how they run (Cloud-optional vs Partial). In short, Stagehand fits devs blending code and AI browsing, and Nanobrowser fits an OpenAI-Operator-style agent you fully control.

Which should you choose?

Choose Stagehand for devs blending code and AI browsing. Choose Nanobrowser for an OpenAI-Operator-style agent you fully control.

There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.

Frequently asked questions

Is Stagehand or Nanobrowser easier to use?

Nanobrowser is generally the easier of the two to get started with, while Stagehand rewards more setup with more control.

Are Stagehand and Nanobrowser free?

Stagehand is free and open source (MIT), and Nanobrowser is free and open source (Apache-2.0). Neither charges for the core software.

Can I run Stagehand and Nanobrowser locally?

Stagehand: cloud-optional · Nanobrowser: partial. Both can be used without sending your data to a third-party cloud where their setup allows.

Stagehand vs Nanobrowser — which should I pick in 2026?

Choose Stagehand for devs blending code and AI browsing. Choose Nanobrowser for an OpenAI-Operator-style agent you fully control.

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