Everything you need to build something real.
Simulate a circuit, check a component value, explore a pinout, or jump straight into a project. Start with one tool and keep building.
Explore Tools →Explore Tools
Wokwi Simulator
Test Arduino, ESP32 and electronics ideas in the browser before wiring real hardware.
Arduino IDE
Write, compile and upload sketches for Arduino boards and compatible microcontrollers.
Tinkercad Circuits
Experiment with virtual components and simple circuits while learning the basics.
KiCad
Design schematics and PCBs for projects that are ready to move beyond the breadboard.
EasyEDA
Draw circuits and create PCB layouts directly in a web-based electronics workspace.
Scratch
Create stories, games and animations with visual block-based programming.
Google Blockly
Visual block-based programming language for creating educational coding tools.
Resistor Code
Decode a resistor color band pattern and use the result while building on a breadboard.
Blender
Free open-source 3D creation suite for modeling, animation, and rendering.
DroneBlocks
Explore drone programming, block coding and hands-on STEM drone projects.