OpaqueFiles
File encryption software for cloud storage
cozyOwl ✓ Verified
page.codeberg.cozyowl.OpaqueFilesOpaqueFiles is a free and open-source project that can be used to encrypt data before uploading it to cloud providers or local storage.
Please also check out Cryptomator to see what suits you best.
Features
- Encryption: ChaCha20-Poly1305 (default), AES-GCM-SIV
- Remember password: Password can be saved in ~/.config/OpaqueFiles/opaqueFiles.properties to avoid typing
- Compression: None, Zstd (default), gzip, XZ
- Reed–Solomon Error Correction
- Argon2id key derivation
- Verification: Checks your encrypted files for errors during encryption
- Checking: Check your encrypted files for malicious manipulation
- Scrubbing: Check your encrypted files for corruption, and fix the corruption
- UNIX Pipes
- Stress testing: Test CPU/Memory stabilty. Faster but not as reliable as Memtest
Screenshots
Observed history
| App | Change | Version | When ↑ |
|---|
No observed changes yet.
The initial import establishes a baseline. Future version changes will appear here.
Browse the app catalogue →Upstream releases
Release notes supplied by the developer. These dates are not Flathub package publication times.
0.9.11.07 May 2026
Releasing version 0.9.11.0
Updated to Java 25. Updated libs.
0.9.10.013 Dec 2025
Releasing version 0.9.10.0
New Features
- GUI: Added pause button
- GUI: Added save password button
- GUI: Save selected compression algorithm
- CLI: Add --compression=?
Fixes
- GUI: Maintain size of encrypt and decrypt buttons
- GUI: Add tooltip text for file browser
0.9.9.41 Oct 2025
Releasing version 0.9.9.4
Fixes
- Progress bar shows NaN when processing empty file.
0.9.9.31 Jul 2025
Releasing version 0.9.9.3
Fixes
- Update dependencies
- Small fixes

