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Nanobrowser nanobrowser/nanobrowser

Chrome/Edge extension that runs a browsing agent in your own logged-in browser, using your API key or a local model; asks before it submits or sends.

Creator kit + Compare GitHub ↗ Install guide (official) ↗

Nanobrowser at a glance

Checked 16 Oct 2026

Nanobrowser (14.1k stars, Apache-2.0, v0.3.0 October 2026) is a free side-panel extension for Chrome and Edge. You type a task; it reads pages, clicks, types and moves between tabs, runs several tasks in tab groups, and can save a CSV or Markdown report to Downloads. Ask mode checks with you before submitting, sending, deleting or uploading, and payments and passwords are always handed back. Works with Anthropic, OpenAI, Gemini, OpenRouter and other APIs, or Ollama/LM Studio (a model with tool calling is required). Browser only: no code sandbox, slides or scheduler.

Cite this pageRepoQuarry. “Nanobrowser.” Checked 16 Oct 2026. https://repoquarry.dev/projects/nanobrowser

How much of Manus does it replace?

1 of 6 jobs. Browses in your own browser with your logins, like Manus Browser Operator; no cloud browser, research reports, sandbox or schedules.

Partial: Autonomous web browsing Partial replacement
No: Deep research reports Not covered
No: File and code tasks in a sandbox Not covered
No: Slides generated from a prompt Not covered
No: Scheduled agent tasks Not covered
No: Connectors to your apps Not covered

For deep research reports, file and code tasks in a sandbox, slides generated from a prompt, scheduled agent tasks, connectors to your apps, see other Manus alternatives. You may also need to build an interface, an API server and hosting yourself.

Facts, with sources

Every answer links to where we found it. We read the documentation; we did not install it.

Report a correction
QuestionAnswerSourceChecked
Runs on my machine? Confirmed: Yes, runs inside your own Chrome or Edge browser Everything runs in your browser. github.com · nanobrowser#readme ↗ today
Code licence Confirmed: Apache-2.0 github.com · LICENSE ↗ today
Model weights licence Confirmed: No separate model weights; you bring a cloud API key or a local model A model must support tool calling. github.com · nanobrowser#-models ↗ today
Commercial use Confirmed: Yes, Apache-2.0 code; model terms depend on the provider you choose github.com · LICENSE ↗ today
Paid services needed? Partial: Nothing paid with a local model (Ollama, LM Studio); cloud model APIs are optional and paid per use Use your own API key or a local model, and pay only for what you use. github.com · nanobrowser#-why-nanobrowser ↗ today
Hardware Confirmed: Any machine running Chrome or Edge with a cloud model; local models work best for simple tasks and need a 16k+ context Local models work best for simple, clear tasks. github.com · nanobrowser#-models ↗ today
Operating systems Confirmed: Any desktop OS with Chrome or Edge; Firefox and Safari not supported Supported: Chrome and Edge. github.com · nanobrowser#-browser-support ↗ today
Setup effort Confirmed: Easy; install from the Chrome Web Store and connect a provider click Add to Chrome and confirm. github.com · nanobrowser#-quick-start ↗ today

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