Circuit design at the speed of thought
The browser-based circuit design tool for when you need answers fast. Describe a circuit, simulate it, and export to KiCad — all before your coffee gets cold.
How it works
Describe
Write a circuit description in plain English or paste a SPICE netlist. AI generates the full netlist for you.
Simulate
Run industry-standard SPICE simulations instantly. Visualize waveforms and validate your design. All in your browser.
Export
When you're ready, export to KiCad for PCB layout — or just grab the SPICE netlist and keep moving.
Why Circ AI?
Whether you're validating a quick concept or learning how circuits work, Circ AI gets you there without the overhead.
Fast
Go from idea to simulation in seconds. No project setup, no library hunting, no 20-minute tool startup.
Works anywhere
Laptop, tablet, library computer. If it has a browser, you can design circuits.
AI that helps
Design through dialogue. Ask for changes, get explanations, iterate naturally.
See it work
Watch your circuit respond in real time with real SPICE simulations on every change.
Simple pricing
Start free. Upgrade when you need more.
Pro
$12/mo
- 200 AI generations/month
- Unlimited circuits
- Unlimited simulations
- KiCad export
What will you build?
Describe it. Simulate it.
Try it free →