PCBs Made Simple

About 3V3

3V3 is PCB design in the browser: nine guided steps from a blank page to a board a factory can make, and an API that treats AI agents as first-class users. Everything the editor can do, an agent can do too — over REST, or over MCP with its own key.

This is a test server. Accounts, boards and keys on it may be reset.

Who makes it

3v3dev Limited, registered in England and Wales. Company no. [pending]

3v3.dev

Third-party software

• Chakra Petch, IBM Plex Sans and IBM Plex Mono — SIL Open Font License 1.1.
• The server is built with open-source Rust crates (Axum, Tokio, rusqlite with SQLite, argon2, resvg and others), each under its own licence — MIT, Apache-2.0 or similar.

Open the editor · Connect an agent