Do I need an account to get started with BlockWerk?

No. Open the app and start simulating immediately — no account, no credit card, no download required.

Will BlockWerk always be free?

Yes, BlockWerk is completely free. There are no paid tiers or subscriptions.

How does BlockWerk compare to Simulink?

Simulink is powerful for legacy aerospace workflows, but expensive and heavy. BlockWerk wins on accessibility: zero setup, instant start, real-time multiplayer, free C/Python/Rust code export, and AI assistance through your own LLM via MCP.

Can I export models to microcontrollers or Python?

Yes. BlockWerk generates C++ source (with an Arduino sketch template), Python and Rust from your model, without an add-on license like Simulink Coder.

How does real-time multiplayer work in BlockWerk?

BlockWerk uses PartyKit and Yjs for peer synchronization. Simply share a collaboration link to design, tune, and test diagrams together in real-time with live remote cursors.

BlockWerk: Web-Based Block Diagram Simulator (AI-Ready via MCP)

A browser-native block diagram simulator powered by a Rust WebAssembly engine, controllable by external AI models via MCP and a JavaScript Scripting API.

Visual block diagram editor with standard control blocks
High-performance WebAssembly simulation engine (Rust-powered)
Open Model Context Protocol (MCP) & Scripting API for AI agents

Free Simulink alternative

Free Simulink alternative
Block library
Agent API documentation (window.blockwerk.agent)
User manual