3D Circuit Simulator in the Browser
Build, simulate and program hardware in the browser. Describe your project and AI builds the circuit for you.
The free 3D hardware simulator in the browser. Built for everyone moving beyond Tinkercad.
From idea to working hardware.
Describe
Type your project in plain English. Tinkered reads it and figures out the components, pin assignments, and behavior you actually need.
Wire
Get a complete circuit and firmware generated for you, or wire it manually in the 3D editor if you'd rather. Either way, components snap together with real connectors.
Simulate
Run your firmware on the virtual board with real electrical physics. Catch shorts, voltage mismatches, and bad timing in the browser before you touch a soldering iron.
Deploy
One click flashes to Arduino, ESP32, Raspberry Pi Pico, or any of 1,300+ supported boards. Same firmware, real hardware, no driver hunting.
See Tinkered in motion.
Not just visual. Actual physics.
Cycle-accurate AVR emulation
Every clock cycle of your firmware runs against the real ATmega instruction set. Same timing, same interrupts, same edge cases. Exactly the way the physical chip executes it.
SPICE Analog Physics
Real analog simulation, not just visual. Resistors, capacitors, transistors, and op-amps behave like actual components. Voltage drops, current flow, and signal integrity all modeled at the circuit level.
AI Circuit Generation
Describe your project in plain English and Tinkered builds the wiring, picks the components, and writes the firmware. Iterate by chatting, not by re-drawing schematics.
Component Library
Microcontrollers, LEDs, 555 timers, transistors, resistors, capacitors, displays, sensors, motors, and more. Everything you need to prototype any idea.
Built for everyone who builds.
Students & Educators
Tinkercad is great for getting started. Tinkered is where you go next. Simulate real circuits, share projects with a link, and deploy to actual hardware. All in the browser, all free.
Hobbyists & Makers
Tinkercad stops at Arduino Uno. Tinkered supports ESP32, Raspberry Pi Pico, and 1,300+ boards. Test your idea in 3D simulation before you buy a single part.
Engineers
Tinkercad has no SPICE, no ESP32, no deployment path. Tinkered adds cycle-accurate AVR emulation, real analog physics, and one-click firmware flashing. Real simulation depth, zero setup.
Common questions. Straight answers.
Tinkercad Circuits only supports Arduino Uno. It has no ESP32, no STM32, no Raspberry Pi Pico support, no SPICE analog simulation, no AI generation, and no path to deploying firmware to real hardware. Tinkered covers all of those gaps.
Yes. Tinkered is free during beta. Like Tinkercad it runs entirely in the browser with no download or installation required, and adds AI circuit generation, real SPICE physics, ESP32 support, and hardware deployment on top.
Yes. Tinkercad only supports Arduino Uno. Tinkered supports Arduino, ESP32, ESP32S3, Raspberry Pi Pico, and more than 1,300 boards, with AI-generated firmware for each.
Yes. Tinkered runs entirely in the browser with no download or installation required. Unlike Tinkercad it adds real SPICE analog physics so components behave exactly as they do on a real bench, not just visually.
Tinkered runs in the browser on any device including Chromebooks with no installation or IT approval needed, just like Tinkercad. It adds AI circuit generation and real SPICE physics on top, making it more capable for advanced coursework while staying free and accessible for beginners.
Tinkercad has no deployment path to real hardware. Tinkered lets you go from simulation to flashing firmware on your physical Arduino, ESP32, or any of 1,300+ supported boards in one click.
Tinkercad Circuits (tinkercad.com) is the free browser-based Arduino simulator from Autodesk used by millions of students, educators, and hobbyists to build and simulate circuits without any software installation. Also searched as “tinkercad alternative”, “tinkercad circuits alternative”, and “tinkercad arduino simulator”, it is a widely used starting point for learning electronics in the browser. While Tinkercad is excellent for beginners, users quickly run into its core limitations: it only supports Arduino Uno, has no ESP32 or Raspberry Pi Pico support, no SPICE analog simulation, no AI generation, and no ability to deploy firmware to real hardware.
Tinkered is the natural next step for anyone outgrowing Tinkercad. Like Tinkercad, it runs entirely in the browser with no download or installation required and supports Arduino simulation. Unlike Tinkercad, Tinkered adds AI that generates your complete circuit and firmware from a plain English description, SPICE analog physics for real component behavior, ESP32 and ESP32S3 support, and one-click deployment to over 1,300 real hardware boards. If you used Tinkercad to learn electronics and are ready for a tool that takes your projects all the way to physical hardware, Tinkered is where you go next.