| 1 |  CryptomatorEncryption made easy and optimized for the cloud | 1.19.4 | Open source | October 21, 2026 | — | 166.2K ↓ |
| 2 |  KeybaseEnd-to-end encryption for things that matter. Keybase is secure messaging and file-sharing. | 6.6.3.3 | Open source | June 4, 2026 | 281.5 MB | 36.6K ↓ |
| 3 |  GNU Privacy GuardGNU Privacy Guard (GnuPG or GPG) is a free-software replacement for Symantec's PGP cryptographic software suite. | 2.5.24 | Open source | September 23, 2026 | 5.8 MB | 186.1K ↓ |
| 4 |  KopiaUICross-platform backup tool for Windows, macOS & Linux with fast, incremental backups, client-side end-to-end encryption, compression and data deduplication. CLI and GUI included. | 0.23.1 | Open source | June 15, 2026 | — | 31.8K ↓ |
| 5 |  i2pdi2pd (I2P Daemon) is a full-featured C++ implementation of I2P client. | 3.0.0 | Open source | October 21, 2026 | — | 78.8K ↓ |
| 6 |  ageA simple, modern and secure encryption tool (and Go library) with small explicit keys, no config options, and UNIX-style composability. | 1.3.2 | Open source | September 30, 2026 | — | 15.6K ↓ |
| 7 |  Proton PassOpen-source and encrypted password manager | 1.42.0 | Open source | October 7, 2026 | 158.6 MB | 19.2K ↓ |
| 8 |  WireThe most secure collaboration platform. | 3.44.5377 | Open source | September 16, 2026 | — | 11.5K ↓ |
| 9 |  MinisignA dead-simple tool to sign files and verify digital signatures. | 0.12 | Open source | February 20, 2025 | — | 9.4K ↓ |
| 10 |  cliCommand-line tools for Anchor.dev | 0.1.12 | Open source | February 12, 2026 | — | 960 ↓ |
| 11 |  NordLockerNordLocker is a secure and easy-to-use cloud for your files, ideas, and memories. Encrypted at all times, your data is always within reach. | 6.5.0.0 | Proprietary | October 15, 2026 | 44.1 MB | 16.1K ↓ |
| 12 |  securefsA filesystem in userspace (FUSE) with transparent encryption (when writing) and decryption (when reading). | 2.0.0 | Open source | November 12, 2025 | — | 593 ↓ |
| 13 |  KryptorA simple, modern, and secure encryption and signing tool that aims to be a better version of age and Minisign. | 4.1.1 | Open source | April 21, 2025 | — | 1K ↓ |
| 14 |  PGPToolJava-based desktop GUI application for easy and regular PGP decryption/encryption. | 0.6.0.0 | Open source | August 18, 2026 | — | 1.6K ↓ |
| 15 |  Quick Share from GoogleWireless sharing with your PC, made easy. | 1.0.2697.0 | Free | September 1, 2026 | — | 6.2K ↓ |
| 16 |  AES CryptAES Crypt for Windows (30-day trial) | 4.7.0 | Proprietary | September 21, 2026 | — | 9K ↓ |
| 17 |  SP2PSecure peer-to-peer data transfer. End-to-end encrypted. Send files, folders, and streams seamlessly - even between CLI and browser. | 0.6.1 | Open source | September 30, 2026 | — | 2K ↓ |
| 18 |  KopiaCLICross-platform backup tool for Windows, macOS & Linux with fast, incremental backups, client-side end-to-end encryption, compression and data deduplication. CLI and GUI included. | 0.23.1 | Open source | June 15, 2026 | — | ★ 14.4K |
| 19 | BbitmessageA P2P communications protocol used to send encrypted messages to another person or to many subscribers. | 0.6.3.2 | Open source | | — | 3K ↓ |
| 20 |  stepA Swiss army knife for working with X.509 certificates, JWTs, etc. | 0.31.0 | Open source | September 25, 2026 | — | ★ 4.4K |
| 21 |  git-cryptTransparent file encryption in git, so encrypted files show up as normal files to other users. | 0.7.0 | Open source | September 4, 2026 | — | ★ 10K |
| 22 |  Shaka PackagerA media packaging and development framework for VOD and Live DASH and HLS applications, supporting Common Encryption for Widevine and other DRM Systems. | 3.9.3 | Free | July 27, 2026 | — | ★ 2.6K |
| 23 |  Batch File Encrypt Free EditionEncrypt and decrypt whole files or their parts using AES, 3-DES, RC2, and DES symmetric algorithms. You can encrypt files with a single password or specify cryptographic keys (vectors) instead. You can change key bit length for better protection. | 5.0 | Proprietary | October 26, 2021 | — | 1.2K ↓ |
| 24 |  PicocryptA very small, very simple, yet very secure encryption tool. | 1.49 | Open source | August 4, 2025 | — | ★ 2.5K |
| 25 |  xxUSBSentinelUSB kill-switch — shuts down the PC when a mapped USB device is removed | 2.0.5 | Proprietary | May 14, 2026 | — | 12 ↓ |
| 26 |  Picocrypt-NGA very small, very simple, yet very secure encryption tool. | 2.18 | Open source | June 29, 2026 | — | ★ 483 |
| 27 |  VerifpalCryptographic protocol analysis for real-world cryptographic protocols. | 1.6.6 | Open source | October 11, 2026 | — | ★ 135 |
| 28 |  Aster MailCross-platform encrypted email client | 1.4.75 | Open source | October 19, 2026 | — | ★ 84 |
| 29 | GGpg4winA secure solution for file and email encryption. | 5.1.1 | Open source | September 23, 2026 | 44.8 MB | — |
| 30 |  aliceandbob.ioA free, light and easy to use PGP tool based on OpenPGP.js. | 1.1.0-Beta2 | Open source | June 12, 2022 | — | ★ 41 |
| 31 |  AroCryptStrong encryption & steganography made simple — secure your data effortlessly with AroCodes’ trusted toolkit. | v0.8.1 | Open source | July 2, 2025 | — | ★ 57 |
| 32 |  gfgLockSecure AES-256 file encryption and decryption - fast, simple, reliable | 3.2.0 | Open source | October 23, 2026 | — | ★ 11 |
| 33 |  Xary EngineHigh-performance C++20 binary stream processing and stealth archiving engine. | 1.0.0 | Open source | September 25, 2026 | — | ★ 4 |
| 34 | FFireDaemon OpenSSLFireDaemon OpenSSL Installer | 4.0.3 | Open source | October 5, 2026 | 17.7 MB | — |
| 35 | HHSM DinamoHardware Security Module (HSM) management tools and drivers. | 4.30.0 | Open source | October 20, 2026 | 26.2 MB | — |
| 36 | EeID softwareUse your ID-card electronically, digitally sign documents and encrypt documents for safe transfer. | 26.8.27.8434 | Proprietary | September 2, 2026 | 108.8 MB | — |
| 37 | PParanoia File & Text EncryptionEncrypt files, folders, and text with strong algorithms. Includes steganography and post-quantum key exchange (ML-KEM). | 17.3.43 | Open source | September 24, 2026 | 51.0 MB | — |
| 38 | SSecure Exchanges Outlook Area Sign FormSecure Exchanges OASF client for Windows. | 2026.03.241 | Proprietary | March 25, 2026 | 246.4 MB | — |
| 39 | SSecure ITFile Encryption, Folder Encryption Software | 20.0 | Proprietary | August 10, 2026 | — | — |
| 40 | FFireDaemon LozengeYour lozenge for everyday cryptographic tasks - Compute multiple hashes for files, Create self-signed certificates, Generate Certificate Signing Requests. | 3.1.3 | Proprietary | October 17, 2025 | 27.7 MB | — |
| 41 | QQENC DecrypterBefore sharing sensitive and/or confidential files from your NAS, use File Station to encrypt them into .qenc files. | 1.2.1.25269 | Proprietary | October 8, 2025 | 49.4 MB | — |
| 42 |  PGP UtilityLocal OpenPGP tool for key management, file and text encryption, signing and verification. | 1.1.0 | Open source | September 21, 2026 | — | — |
| 43 |  rPGPManage OpenPGP certificates and keys | 0.1.4 | Open source | October 5, 2026 | — | — |
| 44 | AAxCryptAxCrypt File Encryption Software - Free Personal Privacy and Security for Windows 2000/XP/Vista or later with AES-128 File Encryption, Compression and transparent Decrypt and Open in the original application. | 2.1.1693.0 | Open source | December 13, 2024 | 18.0 MB | — |
| 45 | CCryptainer LE 18Free Encryption Software | 18.0.3 | Free | April 27, 2025 | — | — |
| 46 | CCryptainer LE 19Free Encryption Software | 19.2.0 | Free | December 1, 2025 | — | — |
| 47 | CCryptainer PE 18Personal File, Folder and Disk Encryption Software | 18.0.3 | Proprietary | April 27, 2025 | — | — |
| 48 | CCryptainer PE 19Personal File, Folder and Disk Encryption Software | 19.2.0 | Proprietary | November 26, 2025 | — | — |
| 49 | CCryptainer 18Disk Encryption Software | 18.0.3 | Proprietary | April 27, 2025 | — | — |
| 50 | CCryptainer 19Disk Encryption Software | 19.2.0 | Proprietary | November 26, 2025 | — | — |