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📐 Schema Editor

License: MIT Vanilla JS PRs Welcome

A high-performance, browser-native vector design environment specifically optimized for Electrical Schematics, Software Architecture, and Architectural Floorplans.

Schema Editor Demo

💡 Why Schema Editor?

Most web-based drawing tools are either generic (Figma/Canva) or overly complex legacy CAD ports. Schema Editor bridges the gap: it provides the precision and domain-specific logic of engineering software with the speed and accessibility of a modern web app.

The "Magic" Features:

  • 🔌 Intelligent Manhattan Routing: Automatic orthogonal wiring that stays clean as you move components.
  • 🔍 Real-Time Wire Tracing: Instantly highlight the complete connectivity path of any signal or net.
  • 🏗 Domain-Specific Kits: Pre-built, high-quality symbol libraries for Electrical (PCB/Circuit), Software (UML/ERD/FSM), and Construction (AEC/Floorplans).
  • 🚀 Zero Dependencies: Built entirely with Vanilla JS and SVG. No heavy frameworks, no virtual DOM overhead—just pure performance.
  • 🎮 3D View Transformation: Native Tilt, Yaw, and Perspective controls for interactive diagram presentations.

🛠 Features at a Glance

  • Touch-Optimized Canvas: Smooth pan/zoom with multi-touch and stylus support.
  • Precision Snapping: Intelligent grid and object snapping for pixel-perfect engineering.
  • Layer Management: Full control over visibility, locking, and stacking order.
  • Measurement System: Calibrated system supporting both Metric and Imperial units.
  • Multi-Format Export: Save as SVG, PDF, HPGL, JSON, or export netlists directly to TAFNE.

📚 Domain Modes

⚡ Electrical & PCB

Focus on connectivity. Specialized symbols for passive components, ICs, and connectors. Built-in logic for Netlist generation and BOM export.

◈ Software Design

Build UML diagrams, ERDs, and State Machines. Features auto-routing for sequence diagrams and Mermaid-compatible export.

🏗 Construction & AEC

Precision tools for architectural layouts. Includes symbols for walls, openings, MEP (Mechanical/Electrical/Plumbing), and site utilities.

🏁 Getting Started

Quick Start

  1. Clone the repository: 
    git clone https://github.com/carnworkstudios/schema-editor.git
  2. Open index.html in any modern browser.
  3. For a full experience with file loading, use a local server: 
    npx http-server ./src

Requirements

  • A modern web browser (Chrome, Firefox, Safari, or Edge).
  • No build step required. Just code and run.

🤝 Contributing

We love contributors! Whether you're adding a new symbol to a domain kit or optimizing the routing engine, your help is welcome.

  1. Check the Issues for "good first issue" tags.
  2. Read our Contributing Guide.
  3. Join the discussion in the Discussions tab.

📜 License

This project is licensed under the MIT License. See the LICENSE file for details.

Copyright (c) 2026 GINEXYS