Build in Any Language. Ship Without the Setup.
A browser-based AI development environment built around true multi-agent parallelism. Architect, Developer and Bug Hunter work simultaneously across 37+ languages. Describe what you want and Brain handles the rest.
Powered byFrom idea to running app, in any language, entirely in your browser
React, Vue, Next.js, Python, Node.js, Go, Rust, Java, Kotlin, Swift, Ruby, TypeScript, Haskell, Elixir and more, all with in-browser execution via Judge0.
Upload documentation, PDFs, or paste text to give the AI instant context about your project, APIs, or custom frameworks.
Multiple specialized AI agents work in parallel. Conductor plans, Senior Dev codes, Bug Hunter validates, all simultaneously. Faster than any sequential AI tool.
Intelligent task orchestration that thinks for you
"Build a React dashboard with authentication" — that's all you need. No detailed instructions, no micromanagement.
The Brain's Conductor agent breaks down your request, identifies required steps, and delegates tasks to specialized agents automatically.
Multiple agents work simultaneously. Senior Dev writes files while Bug Hunter validates completed ones. Faster than any sequential AI tool, in any language.
Get production-ready code with proper structure, error handling, and documentation, without babysitting the process.
Code, run, and preview, all in one place
Full WebContainer-powered terminal with Node.js support. Run npm install, start dev servers, execute scripts, all in-browser.
Instant preview of your apps. See changes in real-time as agents write code. No external tools needed.
Zero configuration. Brain Mode automatically detects project type (Node.js vs static) and runs the appropriate preview. Just focus on your idea.
Four specialized AI minds working in parallel, across every language and framework
Orchestrator
The strategic mastermind. Analyzes your request, detects the tech stack, breaks it into parallel tasks and coordinates every agent, so nothing is built out of order.
System Designer
Designs the full project structure before a line of code is written. File hierarchy, component breakdown, dependency graph, tailored to your exact language and framework.
Code Writer
Writes clean, production-grade code in 20+ languages. Handles complex logic, respects idioms of each language, and runs real-time lint validation on every file it creates.
Quality Assurance
Catches errors before you do. Traces runtime failures, fixes broken imports, validates cross-file consistency, and keeps iterating until the project runs clean.
Start with Free, scale with Pro, or bring your own API
For hobbyists exploring the capabilities of Forge Lab.
No API key needed. Buy ForgeLabTokens and spend them as you go.
Bring your own OpenRouter API key. You only pay for the platform, AI costs go directly to your key.