Picocrypt vs AttacheCase: catalog facts
 Picocrypt |  AttacheCase |
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Free Free and open source, no longer developed. |
Freemium Personal use is free with optional payment; commercial use requires a paid registration… |
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Windows, macOS, Linux |
Windows, macOS |
- XChaCha20 and Argon2id, with a design deliberately small enough to audit
- Standalone portable executable on Windows, with no installation
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- Encrypts both individual files and whole folders
- Available for Windows and macOS
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- Permanently archived and read-only since September 2025; there will be no more releases
- Encrypts individual files, not partitions, drives or cloud folders
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- Website and documentation are mainly in Japanese
- macOS version is still in beta and cannot open AttacheCase 5 format files
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Downloadable app |
Downloadable app |
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Open source |
Closed source |
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License: GPL-3.0 |
License not stated |
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No account needed |
No account needed |
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Works offline |
Works offline |
Checked September 20, 2026 | Checked October 2, 2026 |
Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.
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