Picocrypt ((free)) — Complete

Because it relies on private-key (symmetric) cryptography, Picocrypt is considered resistant to future quantum computing threats. How to Use Picocrypt

Users can require one or more files to be present for decryption, providing a form of two-factor authentication.

Picocrypt focuses on reliability and foolproof operation. Its core feature set includes:

Drag a .pcv file into the app, enter the password, and click Decrypt . Picocrypt automatically checks file integrity and will delete the output if it detects tampering unless "Force decrypt" is checked.

Users can toggle features like file compression, recursive encryption for thousands of files, or specific chunk sizes before hitting the encrypt button. Project Status and Legacy

An optional mode that makes the encrypted volume indistinguishable from random bytes, hiding the very fact that the file is encrypted.

The tool's interface is built around a simple drag-and-drop workflow:

This allows the tool to recover data even if up to 3% of the file becomes corrupted, which is ideal for long-term cloud or hardware backups.