ModDiff is a binary diff and patching format for comparing folder structures and applying efficient updates. It’s designed for versioning, backups, and educational purposes.
Do NOT use this tool or format for commercial purposes or distribution of copyrighted content.
This tool is meant for educational and personal use only. If a file is unchanged and marked as EQUAL in the patch, that means its full content may be reconstructable — which could violate copyright if included in a patch file.
- 🔐 Checksum Verification (
CSUM) - 🗂️ Folder Changes (
FOLD) — add/remove/keep folders - 📄 File Changes (
FILE) — add/remove/keep files - 🧠 Binary Diffs (
DIFF) — patch only the changed bytes - ✅ In-place patching — no output folder required
- Python 3.8+