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Picocrypt vs Kryptor: catalog facts
Picocrypt	Kryptor
Free Free and open source, no longer developed.	Free Free and open source under the GPL.
Windows, macOS, Linux	Windows, macOS, Linux, Command line
XChaCha20 and Argon2id, with a design deliberately small enough to audit Standalone portable executable on Windows, with no installation	Modern primitives with a small, hard-to-misuse option set Short public keys that are practical to share
Permanently archived and read-only since September 2025; there will be no more releases Encrypts individual files, not partitions, drives or cloud folders	Its file format is its own, so interoperability is limited Small project compared with GPG or age
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0
No account needed	Not stated if an account is needed
Works offline	Not stated if it works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 22, 2026

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