Cost / License
- Free
- Open Source (Apache-2.0)
Application type
Platforms
- Mac
- Windows
- Linux
- Android
- iPhone
United States




GPG4Win is described as 'Gpg4win enables users to securely transport emails and files with the help of encryption and digital signatures. Encryption protects the contents against an unwanted party reading it. Digital signatures make sure that it was not modified and comes from a specific sender' and is a popular file encryption software in the security & privacy category. There are more than 25 alternatives to GPG4Win for a variety of platforms, including Windows, Linux, Mac, OpenPGP and Android apps. The best GPG4Win alternative is GnuPG, which is both free and Open Source. Other great apps like GPG4Win are Kleopatra, GPGTools, gpg4usb and Symantec Desktop Email Encryption.




A native macOS application for PGP encryption, decryption, signing, and key management built with SwiftUI.

Open-source backup software using client-side zero-knowledge encryption ensures data privacy, supports multiple object storage providers, preserves folders, detects duplicates locally, enables direct-to-cloud uploads, avoids tracking, and exposes only encrypted metadata.



SmsZip is a lightweight Outlook add in that automatically compresses and encrypts email attachments before sending. All processing is performed entirely locally, without cloud services or external servers. Optionally, the password can be sent to the recipient via SMS.




A Windows app that locks your text messages so tightly only the right person can read them. Works fully offline — no internet, no account, no cloud. Stays private even if your files get stolen. Locks itself when you step away, wipes itself if someone tries to break in.



The Update Framework (TUF) helps developers maintain the security of software update systems, providing protection even against attackers that compromise the repository or signing keys. TUF provides a flexible framework and specification that developers can adopt into any...