- [blackbox](https://github.com/StackExchange/blackbox) - safely store secrets in Git/Mercurial/Subversion.
- [certbot](https://github.com/certbot/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](https://github.com/liesware/coherence/) - Cryptographic server for modern web apps.
- [cryptomator](https://github.com/cryptomator/cryptomator) - Multi-platform transparent client-side encryption of your files in the cloud.
- [Databunker](https://databunker.org/) - API based personal data or PII storage service built to comply with GDPR and CCPA.
- [gpg](https://www.gnupg.org/) - 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](https://github.com/IronCoreLabs/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](https://github.com/GouveaHeitor/nipe) - Nipe is a script to make Tor Network your default gateway.
- [sops](https://github.com/mozilla/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.
- [ves](https://ves.host/docs/ves-util) - End-to-end encrypted sharing via cloud repository, secure recovery through a viral network of friends in case of key loss.
- [git-crypt](https://github.com/AGWA/git-crypt) - Transparent file encryption in git.
- [git-secret](https://sobolevn.github.io/git-secret/) - Bash-tool to store your private data inside a git repository.
