IoTSpark Workspace

Draw hardware wiring diagrams as clean as professional documentation

Drag and drop real ESP32s, sensors, and modules — wire them visually, auto-check pin conflicts, export PNG/SVG/PDF with a BOM. Right in the browser, no install needed.

See sample projects →

Try drawing now — no account needed

Template:

ESP32 DevKit C

module

LED 5mm

module

React Flow

Your drawing auto-saves in your browser (localStorage). Log in when you want to save it to your account.

IoTLabs Workspace diagram editor: an ESP32 wiring diagram with DHT22, MQ-2, PIR, and a relay, with automatic power conflict warnings

A real screenshot from the Diagram editor — open on desktop to try drawing live.

The diagram tool makers have been missing

A real breadboard gets messy, hand-drawn diagrams look bad, dedicated software is heavy. Diagram in Workspace fills exactly that gap.

Real component library

ESP32, sensors, and familiar modules with standard pinouts — drag, drop, and wire like a breadboard.

Automatic conflict detection

Duplicate GPIO pins, duplicate I2C addresses on the same bus — Workspace warns you right as you draw.

Export any format

PNG/SVG for articles, PDF with a BOM and wiring table for reports, a full ZIP bundle to your machine.

Your data, your rules

Private by default

Your project stays private until you choose to share it with the community.

No data lock-in

Export the whole diagram, code, and docs to your machine anytime — the data is yours.

Code wherever you want

Draw the diagram in Workspace, keep coding in your favorite local IDE — or use the in-browser Code/Build/Flash whenever you need it.

When you need more than a diagram

The full Code → Build → Flash → Monitor → Cloud cycle is available in the same project — use it whenever you want.

Code

Arduino editor synced with the diagram.

Build

Compile firmware in the cloud.

Flash

Flash your board over USB (WebSerial).

Monitor

Real-time serial monitor.