ECU Archive Matcher answers one question, and answers it properly: do these two files belong to the same control unit?
You point it at your archive drive and drop in a customer read. It indexes the archive once, then compares the incoming file against everything you already have — control-unit identification, hardware number, software number, calibration ID and the raw bytes.
Everything runs on your own computer. The index is stored locally, nothing is uploaded, and no archive content ever leaves your machine.
macOS — macOS 13 or newer, Apple Silicon (M1 and up).
Windows — Windows 10 or 11, 64-bit; the interface opens in your browser,
served locally by the program.
A match is a strong signal, not a licence to flash. Always verify checksum, ECU identification, vehicle configuration, file type and programming method before writing to a vehicle.
Tells you whether two ECU files belong to the same unit · macOS & Windows