Browse free open source Encryption software and projects below. Use the toggles on the left to filter open source Encryption software by OS, license, language, programming language, and project status.

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  • 1
    VeraCrypt

    VeraCrypt

    Open source disk encryption with strong security for the Paranoid

    VeraCrypt is a free disk encryption software brought to you by IDRIX (https://www.idrix.fr) and based on TrueCrypt 7.1a. It adds enhanced security to the algorithms used for system and partitions encryption making it immune to new developments in brute-force attacks. It also solves many vulnerabilities and security issues found in TrueCrypt. This enhanced security adds some delay ONLY to the opening of encrypted partitions without any performance impact to the application use phase. This is acceptable to the legitimate owner but it makes it much harder for an attacker to gain access to the encrypted data. All released files are PGP signed with key ID=0x680D16DE, available on key servers and downloadable at https://www.idrix.fr/VeraCrypt/VeraCrypt_PGP_public_key.asc VeraCrypt can mount TrueCrypt volumes. It also can convert them to VeraCrypt format. Documentation: https://www.veracrypt.fr/en/Documentation.html FAQ : https://www.veracrypt.fr/en/FAQ.html
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    Downloads: 2,931 This Week
    Last Update:
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  • 2
    RSA消息非对称加密器

    RSA消息非对称加密器

    A message encrypt app on Windows, use RSA 512-10240 bit.

    A message encrypt app on Windows, use RSA 512-10240 bit to ensure communication security.
    Downloads: 13 This Week
    Last Update:
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  • 3
    KOSH-v1

    KOSH-v1

    Keep your sensitive information secure.

    KOSH is a lightweight, feature-rich vault management application designed to securely store your passwords, documents, notes, and sensitive information. Whether you're managing personal passwords or organizing team credentials, KOSH provides multi-layered military-grade encryption and an intuitive interface to keep everything safe.
    Downloads: 2 This Week
    Last Update:
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  • 4
    PTBC

    PTBC

    irreversible encryption with time self-destruction

    Petoron Time Burn Cipher (PTBC) A promising cipher based on self-destruction of time, complete absence of traces and impossibility of key selection. Key features: AES-CFB encryption with per-file IV Argon2id key derivation with 256MB RAM resistance TTL (time to live) built directly into the encrypted file HMAC-SHA512 integrity verification Self-deleting mode (--autowipe) and one-time access marking (--onetime) No file metadata, no recovery, no password resets Philosophy: If you lose the password - it’s over. If time expires - it’s gone. PTBC doesn’t forgive, doesn’t forget, and doesn’t leak. https://github.com/01alekseev/PTBC
    Downloads: 2 This Week
    Last Update:
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  • 5
    PQS

    PQS

    Petoron Quantum Standard (PQS)

    Petoron Quantum Standard (PQS) v1.2 A fully custom, offline encryption standard - built entirely from scratch. PQS v1.2 is a minimalistic, self-contained encryption engine for secure file protection, with zero reliance on external cryptographic libraries. PBKDF2-HMAC-SHA256 (200k iterations, adjustable) for password hardening. Key separation via BLAKE2s - independent keys for encryption and MAC. BLAKE2s-MAC authentication - 16-byte tag, any modification = instant rejection. Streaming keystream generator - secure, large-scale XOR without key reuse. Fake padding (HEAD/TAIL) - obfuscates binary boundaries and payload structure. Precise size encoding - restores original payload exactly. Supports files up to 128 MB per encrypted block. No dependencies, fully offline, cross-platform Python implementation. PQS is designed for high-assurance security, full auditability, and deterministic offline use - without unnecessary complexity. https://github.com/01alekseev/PQS
    Downloads: 1 This Week
    Last Update:
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  • 6
    Abdal 2-Key Triple DES Builder

    Abdal 2-Key Triple DES Builder

    encrypt / decrypt all your texts with Two-Key Triple DES

    If you need more security to send your messages, we introduce the new tool of Abdal security team called Abdal 2-Key Triple DES Builder. This tool can actually encrypt all your texts that are to be sent as a message between you and any person. Two-Key Triple DES is used to encrypt these messages. This algorithm performs 3 cryptographic processes on each block of information to reduce the penetration rate. The Abdal 2-Key Triple DES Builder tool has four modes for encrypting your data.
    Downloads: 0 This Week
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  • 7
    A cross platform implementation of ECDSA (elliptic curve digital signature algorithm) interface to the aSuretee Token.
    Downloads: 0 This Week
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  • 8
    Hercules_free_version

    Hercules_free_version

    Almacenamiento seguro offline para semillas BIP39 con cifrado avanzado

    HERCULES Crypto Pendrive es una aplicación diseñada para proteger tus semillas de criptomonedas (BIP39) de forma segura y totalmente offline. A diferencia de métodos tradicionales como papel, notas digitales o almacenamiento en la nube, esta solución elimina la exposición a internet, reduciendo significativamente el riesgo de hackeos, malware o accesos no autorizados. El software utiliza cifrado avanzado para garantizar que tu información permanezca protegida en todo momento. Su funcionamiento es sencillo e intuitivo, pensado tanto para usuarios técnicos como para inversores que buscan máxima seguridad sin complicaciones. HERCULES no se conecta a la red, no accede a tus fondos y no requiere datos personales, lo que garantiza privacidad total. “Software firmado digitalmente con certificado de firma de código de SSL.com.” File signed with certificate: Owner: Wladimir Marino Materan Velasquez SerialNumber: 107926026636172561193259228594730909048
    Downloads: 0 This Week
    Last Update:
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  • 9
    Inscribe | Data Security and Privacy

    Inscribe | Data Security and Privacy

    Inscribe is a easiest tool to encrypt your valuble data from everyone

    Make your data encrypted in a few clicks! Inscribe by Crypto Ststems helps you cut down development time by providing you with a flexible data encryptor interface. Inscribe is one of the easiest data encryptor tools available today. It also gives you the freedom to encrypt as much data as you like given the fact that it is a desktop app.
    Downloads: 0 This Week
    Last Update:
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  • 10
    Visual Basic 2010 Express Text Encryption Software.
    Downloads: 0 This Week
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  • 11

    NETsoak

    .NET Framework easy protection software

    NETSOAK 472 - easy protection for the .NET Framework 4.7.2 applications. Type for help: netsoak472.exe /?
    Downloads: 0 This Week
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  • 12
    PCA

    PCA

    binary encryption archiver

    Petoron Crypto Archiver (PCA) Key features: AES-256-CFB encryption with unique IV per archive Argon2id key derivation (256MB RAM / time_cost=3 / parallelism=4) HMAC-SHA512 integrity and anti-tampering check No compression, no fingerprinting, no trace of original data Works with both single files and entire directories Fully CLI-based, portable, and open format (.pca) https://github.com/01alekseev/PCA
    Downloads: 0 This Week
    Last Update:
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  • 13
    SafeNotes - Encrypted Journaling

    SafeNotes - Encrypted Journaling

    SafeNotes - A encrypted and easy-to-use journaling application

    SafeNotes is an encrypted and user-friendly note-taking application designed to keep your personal notes and journal entries safe and organized. With SafeNotes, you can easily create, edit, and manage your notes, all while ensuring your data is protected through robust AES-256 encryption and password hashing. The app features a sleek and intuitive interface built with MaterialSkin, offering light and dark themes to suit your preferences. SafeNotes is perfect for anyone looking to keep their notes and journal entries secure and organized. Download SafeNotes today and experience the peace of mind of knowing your personal information is safe.
    Downloads: 0 This Week
    Last Update:
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  • 14
    Secure P2P Instant Messenger running on .NET Framework 2.0. Uses server to store user information (user name, password, email address, friends list, log in state, IP address) in encrypted form. Uses custom designed symmetric encryption algorithm.
    Downloads: 0 This Week
    Last Update:
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  • 15
    An almost complete one-time-pad suite. Has many features which are non-existant in other OTP programs, and includes 5 programs (plus an uninstaller) which allow the user to create keys, create fake keys, encrypt, and decrypt files.
    Downloads: 0 This Week
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