Converters
Hex to Decimal Converter
Convert integer values between hexadecimal and decimal.
Hex or decimal integers
Tool index
Tools
11 focused tools for converting, checking, shaping and inspecting supplied or synthetic data.
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Utilities
Checksum Calculator
Calculate an additive or XOR result from entered bytes.
Entered hexadecimal bytes
Map Editors
Map Viewer
Inspect and edit a pasted byte table as a labeled grid.
Pasted hex or decimal table
Map Editors
Map Extractor
Shape a selected byte region and export the table.
Selected rectangular byte range
Map Editors
Map Definer
Give a selected byte range a table shape and labels.
Byte range, dimensions, optional axes
Utilities
Map Finder
Scan byte windows and inspect heuristic candidates.
Hex text or a local binary
Utilities
Binary Editor
Inspect or edit bytes in a bounded working copy.
Local file or entered bytes
Simulators
ECU Remap Simulator
Explore simplified relationships using synthetic maps.
Synthetic example maps
Converters
VIN Decoder
Check VIN format and limited local codes.
VIN text · optional NHTSA lookup
Map Editors
Map Profile Loader
Validate a JSON profile and open selected byte tables.
Pasted JSON map profile
Map Editors
Map Scale Adjuster
Scale or offset byte values with explicit rounding and bounds.
Rectangular unsigned byte table
Hex to Decimal Converter
Convert delimited hexadecimal integers to decimal and decimal integers to hexadecimal, with strict token and safe-integer limits.
Value → convert → representation
2024-05-02
Open Checksum Calculator Updated
Calculate generic additive modulo-256 or byte-wise XOR results from hexadecimal bytes you enter.
Bytes → method → checksum
2024-05-05
Open Map Viewer
Format pasted hexadecimal or decimal byte tables as labeled grids, edit values, and export data or a local SVG snapshot.
Byte table → arrange → editable grid
2024-04-20
Open Map Extractor
Format a rectangular byte table you select, add optional axis labels, and export CSV or JSON. It does not detect map boundaries.
Selected rows → format → CSV / JSON
2024-04-10
Open Map Definer
Select a byte range, shape it into a labeled table, preview it, or open the values in Map Viewer.
Byte range → shape → preview
Map Finder
Scan hexadecimal bytes or a local binary for heuristic byte-window candidates to inspect; results are not confirmed ECU maps.
Bytes → scan windows → candidates
2024-02-15
Open Binary Editor
Open a local file or enter bytes to inspect and edit a bounded working copy. It does not identify firmware structures or checksum locations.
File / bytes → inspect or edit → working copy
2024-01-11
Open ECU Remap Simulator
Explore synthetic example maps and simplified output relationships in an educational ECU remapping simulation.
Synthetic maps → adjust → model output
2024-03-01
Open VIN Decoder
Check VIN format and limited local codes, with an optional direct NHTSA vPIC vehicle-data lookup.
VIN → local check / optional lookup → fields
2024-05-11
Open Map Profile Loader
Validate a pasted JSON map profile against the supported schema and open selected byte tables in Map Viewer.
JSON profile → validate schema → selected tables
2024-01-06
Open Map Scale Adjuster
Apply a percentage or fixed offset to rectangular unsigned byte tables, then round and clamp values to 0–255.
Byte table → scale + clamp → adjusted table
2024-03-20
Open