Nanobrowser

Nanobrowser is an open-source AI web automation tool that runs as a Chrome extension. It allows users to run multi-agent workflows using their own LLM API keys, offering a free alternative to proprietary web automation agents.

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At a glance

Pricing

Open Source · Free

Free tier

Yes

API

Skill level

Technical

About

What is nanobrowser?

Nanobrowser is an open-source Chrome extension designed for AI-powered web automation, providing a free and privacy-focused alternative to tools like OpenAI Operator. It enables users to run complex multi-agent workflows directly within their browser, leveraging their own LLM API keys from providers such as OpenAI, Anthropic, Gemini, Ollama, and custom OpenAI-Compatible services. Key features include a multi-agent system for collaborative task execution, an interactive side panel for real-time updates, and the ability to automate repetitive web tasks. Users can configure different LLM models for various agents (Navigator, Planner, Validator) to optimize performance and cost, ensuring complete control over their data as everything runs locally.

Best used for

Ideal for developers, content creators, and marketers who need to automate repetitive web tasks, conduct online research, and manage multi-agent workflows. Especially valuable for those seeking a privacy-focused, open-source solution with flexible LLM options and no subscription fees.

Common actions

automate web tasks

run AI agents

scrape web data

research online

Capabilities

Key features

Multi-agent system
Interactive side panel
Task automation
Multiple LLM support
Conversation history
Local browser execution

Target Audience

developercontent creatormarketer

Integrations

Not yet documented

Pricing & Plans

Open Source · Free

Open Source

FAQs

What LLM providers does Nanobrowser support?

Nanobrowser currently supports OpenAI, Anthropic, Gemini, and Ollama. It also allows integration with custom OpenAI-Compatible providers, offering users flexibility in choosing their preferred large language models for various agents within the system.

Does Nanobrowser store my API keys or data in the cloud?

No, Nanobrowser is privacy-focused. Everything runs locally within your browser, meaning your API keys and credentials stay with you and are never shared with any cloud service. This ensures complete control over your data.

Can I use different LLM models for different agents?

Yes, Nanobrowser allows you to configure and assign different LLM models to specialized agents like Navigator, Planner, and Validator. This enables you to balance performance and cost according to the specific needs of each agent's task.

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