Cryptography Software for Mac

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Browse free open source Cryptography software and projects for Mac below. Use the toggles on the left to filter open source Cryptography 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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    4.2 out of 5 stars 81 Reviews
    Downloads: 5,335 This Week
    Last Update:
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  • 2
    JSignPdf

    JSignPdf

    Add digital signatures to PDF documents - GUI and CLI, cross-platform

    JSignPdf is a free, open-source Java application for signing PDF documents with digital certificates. It provides a graphical desktop interface for everyday users and a command-line mode for scripted and server-side workflows. Supported capabilities include PKCS#12 keystores, smartcards and hardware tokens (PKCS#11), Windows keystore integration, visible signatures with custom images and positioning, timestamp authority (TSA) support, OCSP/CRL revocation checks, certification signatures, and PDF encryption. Cross-platform (Windows, Linux, macOS), built on the OpenPDF library, and translated into many languages by its community, JSignPdf is a trusted choice for anyone who needs reliable PDF signing without commercial licensing.
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    4.9 out of 5 stars 24 Reviews
    Downloads: 751 This Week
    Last Update:
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  • 3
    mendelson AS2

    mendelson AS2

    Implementation of the EDIINT AS2 protocol (RFC 4130)

    mendelson AS2 is the JAVA-based open source EDIINT AS2 solution. Monitoring- and configuration GUI, async & sync MDN, signatures, encryption, TLS, web interface, pluggable into any servlet container, partner manager, certificate manager, data compression, optional profiles: MA, FN. Localized to Spanish, Italian, Portuguese, German, English, French, Polish
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    5.0 out of 5 stars 2 Reviews
    Downloads: 626 This Week
    Last Update:
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  • 4
    DAR - Disk ARchive

    DAR - Disk ARchive

    For full, incremental, compressed and encrypted backups or archives

    DAR is a command-line backup and archiving tool that uses selective compression (not compressing already compressed files), strong encryption, may split an archive in different files of given size and provides on-fly hashing, supports differential backup with or without binary delta, ftp and sftp protocols to remote cloud storage Archive internal's catalog, allows very quick restoration even a single file from a huge, eventually sliced, compressed, encrypted archive eventually located on a remote cloud storage, by only reading/fetching the necessary data to perform the operation. Dar saves *all* UNIX inode types, takes care of hard links, sparse files as well as Extended Attributes (MacOS X file forks, Linux ACL, SELinux tags, user attributes) and some Filesystem Specific Attributes (Linux ext2/3/4, Mac OS X HFS+) more details at: http://dar.linux.free.fr/doc/Features.html
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    4.8 out of 5 stars 13 Reviews
    Downloads: 274 This Week
    Last Update:
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  • 5
    EJBCA, JEE PKI Certificate Authority
    EJBCA is an enterprise class PKI Certificate Authority built on JEE technology. It is a robust, high performance, platform independent, flexible, and component based CA to be used standalone or integrated in other JEE applications.
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    4.9 out of 5 stars 22 Reviews
    Downloads: 218 This Week
    Last Update:
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  • 6
    Chromium-Gost

    Chromium-Gost

    Chromium with support for GOST algorithms

    Chromium-Gost is an open-source web browser based on Chromium that adds support for Russian GOST cryptographic algorithms in secure connections. It extends Chromium's standard TLS functionality to work with websites requiring GOST-based encryption. The browser uses the Microsoft Security Support Provider Interface (msspi) to access compatible cryptographic providers installed on the operating system. It detects whether GOST algorithms are available and advertises their support during connection negotiation. When a website requires GOST encryption, Chromium-Gost can switch from the standard BoringSSL connection mechanism to msspi. This process is designed to operate transparently during browsing. Available for Windows, macOS, and Linux, it serves users and organizations accessing websites that depend on GOST cryptographic standards.
    Downloads: 29 This Week
    Last Update:
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  • 7
    X Certificate and Key management is an interface for managing asymetric keys like RSA or DSA. It is intended as a small CA for creation and signing certificates. It uses the OpenSSL library for the cryptographic operations. Please see the XCA homepage http://hohnstaedt.de/xca
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    4.8 out of 5 stars 56 Reviews
    Downloads: 128 This Week
    Last Update:
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  • 8
    Minisign

    Minisign

    A dead simple tool to sign files and verify digital signatures

    Minisign is a lightweight command-line utility designed for generating and verifying digital signatures with a strong focus on simplicity, security, and portability. It uses the modern Ed25519 public-key cryptographic system to produce fast and compact signatures, making it well-suited for software distribution and file integrity verification. The tool is intentionally minimalistic, performing a single task efficiently without unnecessary complexity, which makes it easy to integrate into automated workflows and pipelines. Users can generate key pairs, sign files, and verify signatures using straightforward commands, enabling secure validation of files across different environments. Minisign supports deterministic signatures and includes features such as trusted comments that allow embedding metadata within signatures for additional context and verification integrity.
    Downloads: 27 This Week
    Last Update:
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  • 9
    Msieve is a C library implementing a suite of algorithms to factor large integers. It contains an implementation of the SIQS and GNFS algorithms; the latter has helped complete some of the largest public factorizations known
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    5.0 out of 5 stars 4 Reviews
    Downloads: 175 This Week
    Last Update:
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  • 10
    Portecle
    Portecle is a user friendly GUI application for creating, managing and examining key stores, keys, certificates, certificate requests, certificate revocation lists and more.
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    5.0 out of 5 stars 17 Reviews
    Downloads: 114 This Week
    Last Update:
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  • 11
    ShadowsocksX-NG

    ShadowsocksX-NG

    Next Generation of ShadowsocksX

    ShadowsocksX-NG is the new ShadowsocksX, a secure socks5 proxy for accessing restricted sites or services on macOS. ShadowsocksX-NG was created separately from the original implementation as there had been too much unused code and dependencies of the ss-local source code in the original that had to be maintained. As such it was difficult to update. ShadowsocksX-NG has just a copy of ss-local from Homebrew, and its GUI code has been rewritten in Swift. It now runs as a background service rather than an in-app process, so the ss-local may still be running even after you quit the app. ShadowsocksX-NG also has an added manual mode so you can configure your apps to use the socks5 proxy manually without configuring the system proxy settings.
    Downloads: 21 This Week
    Last Update:
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  • 12
    Cryptomator

    Cryptomator

    Multi-platform transparent client-side encryption for your cloud files

    Cryptomator is a free and open source project that offers multi-platform, transparent client side encryption of your files in the cloud. It works with just about any cloud storage service; is totally transparent so you can work with your files how you normally would; and secure with a 256-bit key length AES encryption. It’s also simple and easy to use with no need for different accounts, key management, cloud access grants or cipher configurations.
    5.0 out of 5 stars 1 Review
    Downloads: 18 This Week
    Last Update:
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  • 13
    KeyStore Explorer

    KeyStore Explorer

    Free GUI replacement for Java command-line utilities keytool/jarsigner

    KeyStore Explorer is a free GUI replacement for the Java command-line utilities keytool and jarsigner.
    5.0 out of 5 stars 12 Reviews
    Downloads: 60 This Week
    Last Update:
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  • 14

    GnuPG for OS X / macOS

    GnuPG 2.2, 2.3 and 2.4 distributions for OS X / macOS

    This project was retired on 2025-03-30, see the documentation section.
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    Downloads: 240 This Week
    Last Update:
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  • 15
    ccrypt is a command-line tool for encrypting and decrypting files and streams. It provides strong encryption based on the Rijndael cipher, a version of which is also used in the Advanced Encryption Standard.
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    4.0 out of 5 stars 5 Reviews
    Downloads: 82 This Week
    Last Update:
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  • 16
    Crypto++ is a free C++ class library of cryptographic schemes originally written by Wei Dai. The library is now maintained by a community of volunteers. The Crypto++ website is located at https://cryptopp.com/, and the source code is located at https://github.com/weidai11/cryptopp. The repository was moved in response to developer requests for Git access. The SourceForge site will remain in "read only" mode for historical purposes. You should visit the Crypto++ website at https://cryptopp.com/ or GitHub at https://github.com/weidai11/cryptopp to view the latest news, download the latest source code, file bugs and request features. We thank SourceForge for hosting us through the years.
    5.0 out of 5 stars 4 Reviews
    Downloads: 54 This Week
    Last Update:
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  • 17
    libsodium

    libsodium

    A modern, portable, easy to use crypto library

    libsodium is a modern, portable, and easy-to-use cryptographic library that serves as an API-compatible fork of NaCl. Consistent behavior and formats across supported platforms. It enhances the original design with build and portability improvements, making it widely deployable across platforms for secure encryption, signatures, hashing, and key derivation. Digital signature creation and verification support. Adds extended cryptographic primitives like BLAKE2 and ChaCha20-Poly1305 beyond NaCl.
    Downloads: 8 This Week
    Last Update:
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  • 18
    Ciphey

    Ciphey

    Decrypt encryptions without knowing the key or cipher

    Fully automated decryption/decoding/cracking tool using natural language processing & artificial intelligence, along with some common sense. You don't know, you just know it's possibly encrypted. Ciphey will figure it out for you. Ciphey can solve most things in 3 seconds or less. Ciphey aims to be a tool to automate a lot of decryptions & decodings such as multiple base encodings, classical ciphers, hashes or more advanced cryptography. If you don't know much about cryptography, or you want to quickly check the ciphertext before working on it yourself, Ciphey is for you. The technical part. Ciphey uses a custom-built artificial intelligence module (AuSearch) with a Cipher Detection Interface to approximate what something is encrypted with. And then a custom-built, customizable natural language processing Language Checker Interface, which can detect when the given text becomes plaintext.
    Downloads: 5 This Week
    Last Update:
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  • 19
    EncFSMP

    EncFSMP

    Mount EncFS folders - multiplatform style.

    EncFSMP can create, mount and edit EncFS (encrypted file system) folders on Windows and Mac OS X.
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    4.8 out of 5 stars 24 Reviews
    Downloads: 20 This Week
    Last Update:
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  • 20
    encrypt

    encrypt

    cross-platform, encryption application

    encrypt is a multi-platform, file encryption application. Binary packages are currently provided for Arch, Debian, Fedora, MS Windows, Android and OS X. For further details, including the latest source code, visit https://albinoloverats.net/projects/encrypt
    4.0 out of 5 stars 5 Reviews
    Downloads: 35 This Week
    Last Update:
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  • 21
    OpenSC

    OpenSC

    OpenSC - tools and libraries for smart cards

    The OpenSC project allows the use of PKCS #15 compatible SmartCards and other cryptographic tokens (e.g. the Aladdin eToken) in UNIX compatible operating systems. OpenSC can use PC/SC Lite or CT-API as its reader backend. https://github.com/OpenSC/OpenSC/wiki/OpenSC-Services
    5.0 out of 5 stars 1 Review
    Downloads: 53 This Week
    Last Update:
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  • 22
    CrococryptFile

    CrococryptFile

    An encryption tool for creating file archives

    CrococryptFile is a file encryption tool which creates encrypted archives of files and folders. The encryption features of CrococryptFile can be compared to a ZIP utility that uses ZIP's AES encryption. However, there are significant differences. CrococryptFile... - encrypts all file and folder information including filenames, time/date and filesize information, - disguises any information of the archive's content, because all data and meta-data is simply integrated into a giant file dump. =Crypto Suites= For a full list of and details about supported crypto suites, please visit the CrococryptFile Homepage. Examples: - Password-based encryption (following PBKDF2) with AES-256, Twofish, Serpent, ... - Public key encryption using GPG/OpenPGP, Windows Keystore/CAPI with RSA/X.509 certificates - Cloaked (headerless) Password-based Encryption (AES-Twofish-256 cascaded) - ...
    5.0 out of 5 stars 6 Reviews
    Downloads: 17 This Week
    Last Update:
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  • 23
    PLEASE NOTE that we are in the process of moving to GitHub: https://github.com/jasypt/jasypt Jasypt (Java Simplified Encryption) is a java library which allows the developer to add basic encryption capabilities to his/her projects with minimum effort, and without the need of having deep knowledge on how cryptography works. PLEASE NOTE that we are in the process of moving to GitHub: https://github.com/jasypt/jasypt
    4.8 out of 5 stars 4 Reviews
    Downloads: 19 This Week
    Last Update:
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  • 24
    The database access library for C++ programmers that provides the illusion of embedding SQL in regular C++ code, staying entirely within the C++ standard.
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    5.0 out of 5 stars 1 Review
    Downloads: 41 This Week
    Last Update:
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  • 25
    PortableSigner
    PortableSigner is a tool for digital signing (with X.509 certificates) of PDF files
    4.8 out of 5 stars 6 Reviews
    Downloads: 13 This Week
    Last Update:
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