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

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