JITX

What is JITX?

JITX is a code-based PCB design platform that uses AI to automate high-frequency circuit board design. It runs locally on your own infrastructure and turns design requirements into Python code that generates schematics, board layouts and validation checks.

Key capabilities of JITX

• Design as code: Requirements, stackups and manufacturing rules written in Python.
• AI-assisted edits: AI proposes code changes engineers review.
• HFSS integration: Sets up simulations and feeds results back.
• Local rule files: Proprietary constraints stay on your machines.
• High-frequency optimization: Handles signal integrity and manufacturability.
• KiCad and Altium integration: Available on the free tier.

How JITX works

Engineers express requirements in Python, AI proposes code edits for review, and JITX generates candidate designs with schematics and routing. HFSS simulations or custom rule checkers validate each result, and measured data feeds the next iteration. Your approved AI models work within JITX design primitives and solvers.

Who uses JITX?

Hardware engineering teams, including aerospace and defense. The vendor lists Honeywell Aerospace, Lockheed Martin and OpenAI as customers.

JITX pricing

The Free and Open plan costs nothing and is released under the CERN OHL-Permissive v2 license, but it cannot be used for proprietary designs. Enterprise is custom and adds proprietary design support, PLM and Siemens Expedition integrations, air-gapped installation and dedicated support.

JITX alternatives

Quilter generates boards with AI-driven layout, while Toolpath and CloudNC address CNC machining. JITX describes boards in code and runs on-premises.