ArmA 3 Preset Comparator

Simple tool to compare two Arma 3 mod presets and quickly see what changed.

Usage

Open a3_preset_diff_main.html in any browser, then drag (or select) your old preset onto the left box and the new one onto the right. Hit Compare and you'll get a color-coded breakdown:

• Green = mod was added
• Red = mod was removed
• Greyed out = still there, nothing changed

If you want to save the result, just click Download Diff HTML and it'll give you a nice standalone file you can share or keep for reference. The filename includes the date and preset name so you can tell them apart later.

Good to know

• This only works with the .html preset files you export from the Arma 3 Launcher.
• Nothing leaves your machine, it all runs locally in the browser.

Example

Examples/
├── Presets to Use/
│   ├── Arma 3 Preset RyanAndAce_antistasi_v1.html        (old)
│   └── Arma 3 Preset RyanAndAce_antistasi_v1_test.html   (new)
└── Final Result/
    └── D08_M04_Y2026_UPDATED_RyanAndAce_antistasi_v1_test.html

Load the old one on the left, the test one on the right, hit Compare, and you'll see the diff. The downloaded result will look something like the file in Final Result/.

License

MIT - do whatever you want with it. See LICENSE for details.

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Disclaimer: This README was generated with the help of GitHub Copilot.