Fast · Safe · Self-Healing
Archives that survive corruption. Compression that beats ZIP.
EntroFold Archive picks a specialized codec per file type — then layers Reed-Solomon erasure coding so a damaged archive can repair itself. Finder-native, 100% offline, Apple Silicon.
300×+
RAW photo compression
30–33×
SQLite compression
30%
redundancy for self-healing
Why EntroFold
Self-healing archives
Reed-Solomon erasure coding with 30% redundancy, GPU-accelerated — an archive can survive partial corruption instead of becoming unreadable.
Per-format codecs
JPEG XL, Preflate, Zstd dictionaries, SQLite and RAW photo transcoders — EntroFold picks the best codec for each file instead of one-size-fits-all.
Finder-native
Compress and extract from the right-click menu, preview .efa contents with Quick Look, or mount one as a folder without extracting.
100% offline
No telemetry, no account, no network requests. Every byte of compression and integrity-checking happens on your Mac.
SHA-256 verified
Every block is checksummed. Optional AES-256-GCM encryption when an archive needs to stay private, not just small.
Apple Silicon
Built for M1–M4, using Metal-accelerated erasure coding and multi-core compression for speed that scales with your Mac.
JPEG XL
Preflate
BCJ ARM64
FLAC
Zstd dictionaries
PNG optimizer
SQLite transcoder
DMG transcoder
Git-repo optimizer
RAW photo transcoder