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Picocrypt vs scrypt: catalog facts
Picocrypt	scrypt
Free Free and open source, no longer developed.	Free Free to download, with source published on GitHub.
Windows, macOS, Linux	Command line
XChaCha20 and Argon2id, with a design deliberately small enough to audit Standalone portable executable on Windows, with no installation	Passphrase-based encryption with no key files to manage Key derivation is designed to resist hardware brute-force attacks
Permanently archived and read-only since September 2025; there will be no more releases Encrypts individual files, not partitions, drives or cloud folders	Symmetric passphrase encryption only, with no public-key support Command-line only
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 20, 2026	Official website Full listing and sources Checked September 23, 2026

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