Enchive is a tool to encrypt files to yourself for long-term archival. It's a focused, simple alternative to more complex solutions such as GnuPG or encrypted filesystems. Enchive has no external dependencies and is trivial to build for local use. Portability is emphasized over performance.

Supported platforms: Linux, BSD, macOS, Windows

The name is a portmanteau of "encrypt" and "archive," pronounced en'kīv.

Files are secured with ChaCha20, Curve25519, and HMAC-SHA256.

Key pairs can be derived from a pass phrase.  See https://github.com/skeeto/passphrase2pgp for a tool to generate gpg key pairs in a similar way.