The open registry for electronics

Where engineers find,
simulate, and share
circuit designs.

A permanent home for every circuit design. Find reference circuits, simulate them in your browser, fork and adapt them, share a link. No installation. No signup required to browse.

Explore Designs →Upload Your First Design

24,847 designs · 8,291 engineers · 103 organizations

How it works

From search to simulation in under 60 seconds.

01

Search

Find any circuit design — voltage dividers, motor controllers, ESP32 projects. Full-text search with filters by type, category, difficulty, and simulator.

02

Simulate

Every design runs in your browser. Wokwi for firmware, ngspice-WASM for analog circuits. No install. No account required.

03

Fork & Share

Copy any design to your account. Modify it. Share a permanent, citable link. Version history included.

FOR SOFTWARE ENGINEERS

If you know how to code,
you can learn hardware.

Firmware is just C — simulate it before buying components
SPICE netlists are like config files — readable and forkable
Fork reference designs like GitHub repos
AI helps you generate starter circuits from natural language
breadboardhub-demo.py
# Install the SDK
pip install breadboardhub

from breadboardhub import BreadboardHub
bh = BreadboardHub()

# Load any public design
design = bh.load('espressif/esp32-blink')
ino    = design.get_file('firmware.ino')
bom    = design.get_bom()

print(design)
# Design: "ESP32 LED Blink" by espressif
# firmware · MIT · v1.2.0
# breadboardhub.com/espressif/esp32-blink
FOR ORGANIZATIONS

The professional layer.

Semiconductor vendors publish official reference designs. Gate downloads behind a lead form. See who downloads your circuits.

TI
Texas Instruments
ESP
Espressif Systems
NRF
Nordic Semiconductor
PRICING

Simple, transparent pricing.

Free to browse and share. Pay when you need more.

Free
$0/month
For hobbyists and learners
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Unlimited public designs
3 private designs
50 MB file storage
5 versions per design
3 collections
100 API calls/hour
10 AI generations/hour
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$15/month
For serious engineers
Start Pro Trial
Unlimited public designs
Unlimited private designs
5 GB file storage
Unlimited versions
Unlimited collections
Webhooks
1,000 API calls/hour
50 AI generations/hour
Org Pro
$99/month
For semiconductor vendors
Contact Sales
Everything in Pro
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Featured on Explore
Gated designs + lead capture
Analytics dashboard
Org-level API tokens
Sponsored leaderboards

Frequently asked questions

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