Use these free online finder, schematic and design tools to create your project. Includes conversion calculators, parts finders, design aids, and more.

Online Conversion Calculators

Alternate Parts and Products Finder

PCB Builder

Design Schematics, Diagrams, and Flow Charts

Online BOM MTBF Prediction

DigiKey's KiCad Symbol and Footprint Library

SnapEDA - Internet’s first parts library for circuit board design

Digi-Key's Reference Design Library