ECU-Forge | Hex Forge

Compare an original file against a modified file and see exactly what changed. Hex Forge keeps the raw detail in front of you, with fast paging, byte inspection, structural warnings and a Forge Heatmap view for spotting the shape of the changes at a glance.

Compare Setup

ORI file (original / stock)

MOD file (modified / tuned)

Rows to display in table

Table view mode

Hex viewer page size

How to use Hex Forge
Load an ORI and MOD file, then hit Compare Files. Use the verdict strip for a quick read, the warning panel for anything that needs immediate attention, and the workspace tabs below to swap between byte-level inspection and the Forge Heatmap overview.

What the warnings mean
Protected-region flags, tail changes and dense rewrite markers are there to draw your eye to areas worth checking carefully. They are prompts for inspection, not final judgement calls on the file.

ORI Size-No file loaded

MOD Size-No file loaded

Changed Bytes00.0000%

Changed Blocks0No comparison yet

Forge Verdict Ready to compare Load an ORI and MOD file to assess the structure of the changes.

Change Density - No data yet

Pattern Shape - No data yet

Pattern Notes - Nothing to flag yet

Confidence - Needs two files

Changed Region Summary

No comparison yet. Load an ORI and MOD file to build a region summary.

Critical Warnings

⚒ No structural warnings yet.

Waiting for ORI and MOD

No results yet

Offset	Original	Modified	Δ	Type
Load an ORI and MOD file, then run Compare Files to populate the results table.

Hex viewer idle

Page offset: -

Changed block: -

Jump straight to change block

Same Changed Length-only

ORI (Original)

No page to show yet.

MOD (Modified)

No page to show yet.

Offset-

ORI Hex-

MOD Hex-

ORI Dec / ASCII-

MOD Dec / ASCII-

DifferenceClick a byte

🔥 Forge Heatmap Hot zones = areas of change. Click to jump instantly.

Hotter segments mean denser byte changes on those pages. Click any segment to jump there fast, then flip straight back to Hex Compare.

CSV export follows the current table view. Use Changed bytes only for a focused diff, All rows for wider context, or Changed blocks summary when you want the shape of the edits without trawling every byte.