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PicocryptEncryptPad
Free

Free and open source, no longer developed.

 Free

Free to download, with source on GitHub.

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
  • Edit encrypted text files directly without writing plaintext to disk
  • OpenPGP-compatible file format readable by GPG
  • Permanently archived and read-only since September 2025; there will be no more releases
  • Encrypts individual files, not partitions, drives or cloud folders
  • Symmetric encryption only, no public-key workflows
  • Some platforms require compiling from source
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

Checked September 20, 2026

Checked September 23, 2026

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