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Open-source AI browser agent for Chrome and Firefox (monorepo) 🧠
This repository page has enough original analysis, source evidence, and comparison context to be treated as an indexable Git-Stars review.
100
review score
Problem solved
Traditional browser extensions are passive and can't reason or act on web pages. WebBrain solves this by embedding an AI agent that can read, understand, and interact with pages in real time, while giving users control over the underlying model—including fully local, private options. It also bridges the gap between simple bookmarklets and full RPA tools by offering a no-code, conversational interface.
Deployment reality
The available setup signal starts with: Install from the Chrome Web Store, Firefox Add-ons, or Edge Add-ons; or clone from source and load unpacked.. Treat this as a starting point, then ask Codex or Claude to inspect the README, environment variables, runtime version, and deployment target before production use.
Commercial use
The recorded license is MIT. This is a useful commercial-use signal, but teams should still verify license text, dependencies, model/API terms, and trademark constraints.
Capability ceiling
Developers can build browser-based AI assistants that summarize articles, extract data, fill forms, navigate multi-page workflows, and even perform reversible page edits in Dev mode. The ceiling includes complex automation like end-to-end testing, data scraping, and personalized web interactions, all driven by natural language. With local model support, it enables privacy-preserving automation on sensitive data.
Git-Stars is independent and not affiliated with GitHub or this project. Analysis may be AI-assisted and based on public repository metadata plus short README-derived summaries. We do not mirror full README files, docs, issues, or social comments.
webbrain-one/webbrain is tracked as a JavaScript project in the AI Agent, LLM Tool, Developer Tool, Automation area. This evaluation combines public GitHub metadata, category signals, short source summaries, and Git-Stars editorial rules rather than copying project documentation.
Momentum check: the repository has 754 total stars, with +0 today, +101 this week, and +0 this month. These growth windows help distinguish durable adoption from short-lived visibility spikes.
Maintenance check: current activity is Active; the latest push was 9 days ago, and the open issue queue is 11, about 1.46% of total stars. Treat this as an adoption signal, not a substitute for engineering due diligence.
Adoption check: 91 forks and 754 watchers suggest how often the project is reused or followed. License signal: MIT. Always verify license compatibility before commercial or internal use.
Practical fit: this project is most relevant when you need JavaScript teams evaluating ecosystem-native tooling. Be cautious when you need a legal review, security audit, or production SLA.
Source check: Git-Stars currently has 2 explicit source reference(s) for this report and a recent growth signal of 101. Follow the original GitHub repository for final install, security, and release information.
Analysis
ReadyOriginal problem, capability, and verdict guidance are available.
Sources
ReadyRepository metadata and README/source references are attached.
License
ReadyMIT is recorded for review.
Maintenance
ReadyRecent activity is visible in repository metadata.
Alternatives
ReadyEnough nearby projects exist for comparison.
Momentum
754 Stars
Reuse
91 Forks
Attention
754 Watchers
Maintenance
active
License
MIT
Open issues
11
WebBrain is an open-source AI browser agent that lives in a side panel, letting you chat with pages, automate tasks, and run multi-step workflows using your choice of LLM—local, cloud, or managed default.
Key Features
- Reads any page via accessibility tree (text, links, forms, PDFs) - Acts on pages: click, type, scroll, navigate, upload, download, with permission prompts - Multi-step autonomous agent (up to 195 steps), saved workflows, scheduled tasks, and skills
AI Agent
Agent frameworks, autonomous workflows, and tool-use systems
LLM Tool
Libraries and tools for LLM apps, RAG, prompts, and evals
Developer Tool
Tools that improve coding, testing, build, and local workflow
Automation
Workflow automation, integration glue, and orchestration
Install from the Chrome Web Store, Firefox Add-ons, or Edge Add-ons; or clone from source and load unpacked.65
Health Score
Active
Commit Activity
Apr 6, 2026
Created
Aug 15, 2026
Last push
+0
Today's growth
+0
7-day growth
+0
30-day growth
Forks
Open
Watchers
webbrain-one
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Interactive roadmaps, guides and other educational content to help developers grow in their careers.
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✓
License
✓
Forked
✓ Active
Maintained
Problem Solved
Traditional browser extensions are passive and can't reason or act on web pages. WebBrain solves this by embedding an AI agent that can read, understand, and interact with pages in real time, while giving users control over the underlying model—including fully local, private options. It also bridges the gap between simple bookmarklets and full RPA tools by offering a no-code, conversational interface.
Capabilities
Developers can build browser-based AI assistants that summarize articles, extract data, fill forms, navigate multi-page workflows, and even perform reversible page edits in Dev mode. The ceiling includes complex automation like end-to-end testing, data scraping, and personalized web interactions, all driven by natural language. With local model support, it enables privacy-preserving automation on sensitive data.
Bottom Line
WebBrain is ideal for developers and power users who want a customizable, privacy-respecting AI browser agent that can automate tasks and chat with web content. Those who prefer fully managed, zero-setup solutions or are wary of AI-driven browser automation might avoid it. The key trade-off is between flexibility and control (local models, open-source) versus the complexity of setup and potential for misuse.