zscan 0.1.0

First release of zscan: find compressed streams inside any binary file, extract them, edit them, and pack them back, with every step verified. A Rust replacement for offzip and packzip.

Download

zscan-v0.1.0-windows-x64.zip (Windows x64) contains:

• zscan.exe, the command line
• zscan-gui.exe, the desktop app
• README.md (with screenshots in docs/images/) and LICENSE

No installer and no runtime to install: the C runtime is linked in. See the README for usage.

SHA-256: 5aca7862f3e51f4ba859f639ac42f1d2131ce995b3cb9fd2901ffd68769b5372

What's in it

• Formats: gzip, zlib, raw deflate, zstd, xz, bzip2, lz4, and brotli (added at known offsets).
• LZO (raw LZO1X) is included; scan for it with --formats ...,lzo.
• Oodle (Kraken, Mermaid, Selkie, Leviathan) is supported, but zscan doesn't include the Oodle library. Point it at the oo2core_*.dll from your game or SDK with --oodle-dll, the ZSCAN_OODLE_DLL environment variable, or Tools > Plugins in the GUI.
• Pack reuses the encoder settings that reproduced each original stream, tries stronger settings when an edit doesn't fit, and can update size fields and relocate streams. It verifies the output before writing.
• Unpack / rebuild gives a bit-exact round trip of a whole file.
• Desktop app: entropy map, stream table, hex, text and image previews, pack with a dry run, and projects.

License

zscan is licensed under GPL-2.0-or-later; see LICENSE and the README. These binaries include LZO support through the lzo1x crate, which declares GPL-2.0 without "or later"; see the README's License section.

Updated after release: the zip was repackaged with the current README (license section and screenshots) and the LICENSE file. zscan.exe and zscan-gui.exe are unchanged.