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Deadbolt vs Picocrypt: catalog facts
Deadbolt	Picocrypt
Free Free and open source under the MIT licence.	Free Free and open source, no longer developed.
Windows, macOS, Linux, Command line	Windows, macOS, Linux
Password-only encryption with very little to configure Encrypted files work across macOS, Windows and Linux	XChaCha20 and Argon2id, with a design deliberately small enough to audit Standalone portable executable on Windows, with no installation
No auto-updates on Linux Not a replacement for full-disk encryption	Permanently archived and read-only since September 2025; there will be no more releases Encrypts individual files, not partitions, drives or cloud folders
Downloadable app	Downloadable app
Open source	Open source
License: MIT	License: GPL-3.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 20, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.