Maker Tools
Free PCB & Electronics Tools
Fast, accurate calculators and utilities for anyone designing a board. No sign-up, no paywall. Built from the same verified engine behind Banana Board.
PCB Trace Width Calculator
IPC-2221 width, resistance and voltage drop for a target current.
Open toolResistor Color Code Calculator
Decode 4, 5 and 6-band resistors and SMD codes, both directions.
Open toolBOM Cost Calculator
Total a parts list with quantities and distributor search links.
Open toolOnline Gerber Viewer
Drop a Gerber or drill file and inspect the copper in your browser.
Open toolComponent & Symbol Search
Search common parts for pinouts, current draw and wiring notes.
Open toolKiCad Footprint Reference
Standard SMD and through-hole footprint dimensions at a glance.
Open tool