Picocrypt 95%

It is free. It is auditable. It fixes bitrot. It uses gold-standard algorithms. And it fits on a floppy disk (metaphorically).

Su argues that hidden volumes (like VeraCrypt's famous feature) are a gimmick. In a legal setting, if an adversary knows you use VeraCrypt, they will keep hitting you until you provide the hidden volume password. Plausible deniability does not hold up to a rubber hose or a forensic analyst who sees the entropy of a hidden volume. picocrypt

is a lightweight, open-source file encryption tool designed for high security with a minimalist interface. Its name, "Pico," reflects its extremely small file size and low system resource usage. Core Security Features It is free