Free tools
Free tools for harness shops.
No account and nothing stored. Each tool shows where its numbers come from.
Harness quote calculator
Labour from an operation-time table, material, setup spread over quantity breaks, margin — and a quote PDF.
Open the tool →Wire cut-length calculator
Path length plus allowances, service loops, slack, twist take-up and rounding, each term explained.
Open the tool →Wire size chart: AWG to mm²
AWG ↔ mm², outside diameters of common harness wires, and IEC 60757 and DIN 47100 colour codes.
Open the tool →Current and voltage-drop checker
Current capacity with ambient and bundle derating, conductor temperature, voltage drop and fuse bounds — every source shown.
Open the tool →Printer scale check
Print the calibration sheet, measure two rulers, get your printer's scale error for 1:1 formboards.
Open the tool →
Coming next: a connection-list checker for Excel and CSV wire lists.