WebBrain
Open-source browser AI agent for page understanding, task automation, and multiple models
About WebBrain
WebBrain is a free, open-source browser extension for people who browse the web. It reads and understands articles, documents, dashboards, and forms, answers questions about the current page, and clicks, types, scrolls, navigates, and automates repetitive tasks using natural language. It supports local llama.cpp and Ollama, as well as OpenAI, Claude, and OpenRouter, and can run locally offline; it asks before important actions, uses read-only Ask Mode by default, and handles consent banners, detects paywalls, and truthfully reports content limitations.
Best for
Best use cases
Read and ask questions about articles, documents, dashboards, and forms
Extract data from web pages
Automate repetitive web tasks with natural language
Get offline browsing assistance in a local-model environment
Compare before choosing
The official comparison page says that WebBrain uses the GPL-3.0-or-later open-source license, is Free forever, and supports llama.cpp and Ollama; the proprietary browser AI plugin in the comparison requires Claude Pro ($20/mo) and supports only Claude.
The official comparison page says that WebBrain is for end users who want an AI assistant while browsing, whereas agent frameworks such as OpenClaw are for developers building automated browser pipelines; the two can be used together.
Features
Page understanding
Reads and understands articles, documents, dashboards, and forms, and answers questions about the current page.
Full-browser agent
Clicks, types, scrolls, navigates, and automates repetitive web tasks using natural language.
Multi-provider models
Supports local llama.cpp and Ollama, as well as OpenAI, Claude, and OpenRouter.
Cookie and paywall awareness
Handles common consent banners, detects paywalls, and truthfully reports page content limitations.
Pros
- Uses the GPL-3.0-or-later open-source license
- Supports local llama.cpp, Ollama, and multiple cloud models
- Read-only Ask Mode by default, with confirmation before important actions
- Detects paywalls and avoids inventing content or attempting to bypass them
Cons
- Uses Manifest V3; Chrome requires 116+, and it targets Chromium-compatible browsers
Pricing Plans
Free
- GPL-3.0-or-later open-source license
- Supports llama.cpp, Ollama, and local offline operation
* Pricing information is for reference only. Please refer to the latest announcement on WebBrain's official website.