Motuner: BIN, HEX & XDF Editor

Motuner is a hex editor and XDF table editor for ECU ROM (BIN) files, built for Android phones and tablets.

Open a BIN file and edit it right away in the hex editor. Optionally load a TunerPro-style XDF definition file to get named tables and scalars, a grid editor, charts, and a byte map overlay in the hex view.

HEX Editor
- Offset, hex and ASCII columns with 8, 16 or 32 bytes per row
- Go to offset, plus search by hex pattern (with ?? wildcards) or ASCII text
- Overwrite-only editing, so the file size never changes
- Fill, copy and paste hex, value inspector, and an on-screen hex keypad
- Hardware keyboard support

XDF TABLES AND SCALARS
- Load an XDF to see named tables, axes and scalars
- Search, filter by category, or show only changed items
- Grid editor with frozen axis headers, range selection, copy and paste
- Nudge values with + and -
- Multiply, add or set a value on a selection or a whole table, with a live preview
- XDF overlay in the hex view: tap a byte to see which table it belongs to

CHARTS and COMPARE
- Line charts for 1D tables
- Heatmaps
- 3D surface view with rotate, zoom and pan, linked to your selection
- Compare against the original file or another BIN
- Original, modified, diff and side-by-side views
- List of every changed byte, including bytes outside any table
- Revert changes and export a report (Markdown or CSV)

IMPORTANT
- Motuner does not recalculate checksums. Correct the checksum with a separate tool before flashing.
- Motuner does not communicate with an ECU. It only edits files.
- For educational and off-road use only. You are responsible for anything you flash.