Disk Encryption Tools

Bcrypt - Cross-platform file encryption utility.
blackbox - safely store secrets in Git/Mercurial/Subversion.
certbot - Previously the Let's Encrypt Client, is EFF's tool to obtain certs from Let's Encrypt, and (optionally) auto-enable HTTPS on your server. It can also act as a client for any other CA that uses the ACME protocol.
Coherence - Cryptographic server for modern web apps.
cryptomator - Multi-platform transparent client-side encryption of your files in the cloud.
Databunker - API based personal data or PII storage service built to comply with GDPR and CCPA.
gpg - Complete and free implementation of the OpenPGP standard. It allows to encrypt and sign your data and communication, features a versatile key management system. GnuPG is a command line tool with features for easy integration with other applications.
ironssh - End-to-end encrypt transferred files using sftp/scp and selectively share with others. Automatic key management works with any SSH server. Encrypted files are gpg compatible.
Nipe - Nipe is a script to make Tor Network your default gateway.
sops - sops is an editor of encrypted files that supports YAML, JSON and BINARY formats and encrypts with AWS KMS, GCP KMS, Azure Key Vault and PGP.
Tomb
ves - End-to-end encrypted sharing via cloud repository, secure recovery through a viral network of friends in case of key loss.
git-crypt - Transparent file encryption in git.
git-secret - Bash-tool to store your private data inside a git repository.