Free Electronics Design Tools
Professional calculators and utilities for embedded hardware engineers.
Filter by:
Featured
Current Estimation Calculator
Calculate battery life and current consumption for multi-state embedded systems with multiple power rails and load profiles.
batterypowerembedded
Try it→intermediate
Featured
ATSAMD Pin Configuration
Interactive pin configuration tool for ATSAMD21 microcontrollers. Configure SERCOM, TCC, ADC, and other peripherals with visual pin diagrams.
microcontrollerATSAMD21pin config
Try it→intermediate
Featured
Serial Monitor
Web-based serial terminal with IC status visualization. Monitor 16-bit registers in real-time using the Web Serial API.
serialdebuggingIC
Try it→beginner
Featured
PCB Composer
Assemble verified circuit tiles into a routed PCB. Select modules, map signals, and download production-ready Gerbers in 24 hours.
PCBdesign servicerouting
Try it→beginner
💡
We're adding more tools soon. Have a suggestion? Let us know