Map Extractor

What Map Extractor does

Map Extractor formats byte values that you have already selected into a rectangular grid. Line breaks determine rows; the number of values in each line determines columns. It does not search a full binary for boundaries, infer an offset, or decide whether the values represent an ECU map.

Input format and limits

• Choose hexadecimal or decimal. Hex bytes use one or two digits, optionally prefixed with 0x; decimal bytes are whole numbers from 0 to 255.
• Separate values with spaces, commas, or line breaks. Each non-empty line must contain the same number of values.
• Paste the selected region only. This tool does not accept a file or byte offset and does not infer rows or columns from a binary.
• Tables are limited to 256 rows, 256 columns per row, 16,384 byte values, and 256,000 input characters.

Example workflow

1. Load the illustrative example or paste a selected byte region with one row per line.
2. Select the input format and validate the table. Add axis labels only when you know their values.
3. Review the row/column counts and byte range, then copy values, download CSV/JSON, or open the table in Map Viewer.

The built-in example is fabricated for demonstrating the format; it is not vehicle calibration data.

Limits and interpretation

A rectangular byte table is not proof that the data is an ECU map. The tool does not identify map boundaries, verify axis definitions, determine scaling, or assess ECU compatibility. Optional multiplier and unit fields are descriptive metadata only; downloaded byte values are unchanged. Do not treat a formatted table as validated calibration or as suitable to flash to a vehicle.

Related tools and learning

• Map Viewer displays the resulting table and supports further visual inspection.
• Map Finder scans supplied bytes for heuristic table candidates; candidates still need manual verification.
• Working with Raw ECU Files introduces binary structure and why patterns alone do not confirm a map.