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nanobrowser

Free

Open-Source Chrome extension for AI-powered web automation. Run multi-agent workflows using your own LLM API key. Alternative to OpenAI Operator.

Personal AssistantFreeFree tier
#TypeScript
Type
Open Source

About nanobrowser

Nanobrowser is an open-source Chrome extension that functions as an AI-powered web agent. It enables users to run multi-agent workflows directly in the browser using their own LLM API key, offering a flexible alternative to OpenAI Operator. The extension runs locally, supports multiple LLM providers, and gives users full control over their automation tasks.

Key Features

Open-source codebase available on GitHub
Runs as a Chrome extension in the browser
Multi-agent workflow support
Use your own LLM API key with any provider
Browser-based AI web agent without external servers

Pros & Cons

Pros
  • Open-source with full transparency and customizability
  • Supports multiple LLM providers via own API key
  • Runs directly in Chrome without server setup
  • Free to use with your own API key
Cons
  • Requires user to have their own LLM API key
  • Limited to web-based tasks within Chrome
  • May have compatibility issues with certain websites

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