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




One of the most popular alternatives to GPG4Win is GnuPG, which is free and open source. Other popular alternatives are Kleopatra, GPGTools, Symantec Desktop Email Encryption and gpg4usb. There's no shortage of File Encryption Software like GPG4Win, with more than 25 alternatives for Windows, Linux, Mac, Android and iPhone.




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...