Pricing
Start free. Upgrade to Pro when you need unlimited programs and the full hardware range.
Free
$0 · forever
- Editor: ladder editor & simulator
- Programs: 50 cloud-saved · unlimited local-only
- History: unlimited
- Hardware: Arduino Uno & Nano
- AI / MCP: unlimited · free forever
- Custom blocks: create your own
Pro
$15 / month
- Editor: ladder editor & simulator
- Programs: unlimited cloud-saved
- History: unlimited
- Hardware: full Arduino range incl. ESP32
- AI / MCP: unlimited · free forever
- Custom blocks: create your own
Straight from your browser — on every plan
Download to your target device
Compile and download your ladder program straight to connected hardware over USB — no separate toolchain to install.
Live online debugging
Watch your program run on the real device in real time — live values and power flow shown right on the ladder, in the browser.
See the generated code
Open the C / Arduino source generated from your ladder and read it line by line — a clear window into how your logic runs on a real microcontroller, and a great way to learn embedded programming.
Build it with your AI agent
Connect Claude Code or Claude Desktop over MCP and just ask it to write, edit, or explain your ladder program — free forever, with your own key.