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

  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
    Start Free
  • Our Free Plans just got better! | Auth0 Icon
    Our Free Plans just got better! | Auth0

    With up to 25k MAUs and unlimited Okta connections, our Free Plan lets you focus on what you do best—building great apps.

    You asked, we delivered! Auth0 is excited to expand our Free and Paid plans to include more options so you can focus on building, deploying, and scaling applications without having to worry about your security. Auth0 now, thank yourself later.
    Try free now
  • 1
    MD5-utils
    MD5-utils is a script for MD5 hash function manipulations. It can crypt one or more word(s) and try to crack one or more hash(es) using online servers.
    Downloads: 3 This Week
    Last Update:
    See Project
  • 2
    AceJudge is a system for managing programming contests. AceJudge's basic features include automatic judging of submitted programs, answering to clarification questions about problem descriptions, reevaluation of programs, real time ranking etc.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    Cracker-ng

    Cracker-ng

    Cracker-ng is a multiple file password finder.

    /!\ Developer(s) needed to optimize routines, multi-processing; any kind of help is accepted :)
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Easy-SEND is an implementation of the SEND (SEcure Neighbor Discovery) protocol for IPv6. It is aimed to be used for learning and testing purposes. SEND is described in RFC 3971. Easy-SEND includes a tool (CGAGen) to generate and verify CGAs (RFC 3972).
    Downloads: 0 This Week
    Last Update:
    See Project
  • Simple, Secure Domain Registration Icon
    Simple, Secure Domain Registration

    Get your domain at wholesale price. Cloudflare offers simple, secure registration with no markups, plus free DNS, CDN, and SSL integration.

    Register or renew your domain and pay only what we pay. No markups, hidden fees, or surprise add-ons. Choose from over 400 TLDs (.com, .ai, .dev). Every domain is integrated with Cloudflare's industry-leading DNS, CDN, and free SSL to make your site faster and more secure. Simple, secure, at-cost domain registration.
    Sign up for free
  • 5
    A Compiler from Protocol Scenarios to Interpreted Systems
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    a number of clients try to find a secret key by calculating the encryptions to all possible keys of a given key range and comparing them to the encryptin of the secret key until a matching one is detected....
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7
    SJEA version 1.0 - Simple Java Encryption Algorithm. SJEA is a simple command-line binary encryption algorithm (symmetric block cipher) written in JAVA. It uses a password and a byte-vector array to scramble the input file.
    Downloads: 0 This Week
    Last Update:
    See Project
  • Previous
  • You're on page 1
  • Next