Circuit Drafter

A free, in-browser tool for quickly drafting electronic circuit diagrams. No installation, no accounts, just pure HTML and JavaScript.

Screenshot of the Circuit Drafter application in use.

Why Use Circuit Drafter?

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100% Client-Side

Runs entirely in your browser. No data is sent to a server.

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Intuitive Tools

A simple toolbar with essential components, smart wiring that snaps to a grid, and automatic junction dots.

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Keyboard Shortcuts

Speed up your workflow with intuitive hotkeys for tools (S, W, T), editing (Ctrl+Z), and component manipulation (R, Del).

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High-Res Export

Export your finished schematic as a high-quality PNG image, perfect for documentation, reports, or sharing.

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Open & Free

Built with vanilla JavaScript and zero dependencies. The code is open-source and free to use, modify, and learn from.

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Instant Access

No downloads, no lengthy setup. Just open the page and start drawing your circuit immediately.