Onebyte — ECU map editor (open beta, free)
Try it free: www.onebyte.com.co
Open a dump and Onebyte finds and names the maps for you. Runs in your browser (nothing to install) and as a desktop app.
Identifies the ECU automatically, from the file.
Finds and names the maps, with units and axes. Load an A2L and every map comes in by its Bosch label.
Stock or already tuned? Each file is compared with the stock references of its software, so you see what someone changed before you.
Automatic Stage 1 — limiter, driver wish, smoke, boost, rail and injection raised together, by rules checked against 8,826 tuner files. You see every change before it's applied. Diesel and increasingly petrol.
Ready-made services: DPF, EGR, DTC, AdBlue, swirl off — for off-road and competition use only.
Editor like you know it: table with heatmap and Δ %, 2D graph, 3D surface, block operations, copy/paste, axis editing, Interpolate Extrapolate, undo for everything.
Hex view, the whole file as a curve, side-by-side with the original.
Your own maps: finds tables by structure in files it doesn't know; imports TunerPro XDF and WinOLS map lists/packs.
Versions, compare, transfer a tune to another software of the same engine.
Formats: BIN, HEX, S19, WinOLS .ols/.kp.
The original stays untouched and every plan is computed from it. Checksums are left to your flashing tool. Covers 50+ ECU families (VAG, BMW, Mercedes, PSA, Opel, Ford, Fiat/Alfa, Renault, Volvo, Hyundai/Kia, JLR...).
Please report any bugs or wrong map detections here on post.
As Im looking for testers Im also looking for damos, or pairs of tuned files so I can extand my coverage willing to pay, trade whatever. mostly need edc17, delphi, denso, continental families and mgd1.
Thanks and happy tuning








