Open Source Windows Security Software

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

  • Vibes don’t ship, Retool does Icon
    Vibes don’t ship, Retool does

    Start from a prompt and build production-ready apps on your data—with security, permissions, and compliance built in.

    Vibe coding tools create cool demos, but Retool helps you build software your company can actually use. Generate internal apps that connect directly to your data—deployed in your cloud with enterprise security from day one. Build dashboards, admin panels, and workflows with granular permissions already in place. Stop prototyping and ship on a platform that actually passes security review.
    Build apps that ship
  • Find Hidden Risks in Windows Task Scheduler Icon
    Find Hidden Risks in Windows Task Scheduler

    Free diagnostic script reveals configuration issues, error patterns, and security risks. Instant HTML report.

    Windows Task Scheduler might be hiding critical failures. Download the free JAMS diagnostic tool to uncover problems before they impact production—get a color-coded risk report with clear remediation steps in minutes.
    Download Free Tool
  • 1
    Jacksum

    Jacksum

    a free cross platform checksum utility, supports 58+ hash algorithms

    Development of this project has been moved to https://github.com/jonelo/jacksum. This site has been left for historical purposes ONLY, you find older Jacksum versions here. Please visit the GitHub site for current development. Jacksum 1.7.0 is a platform independent checksum utility (written entirely in Java) for computing and verifying (integrity check) checksums, CRC and hashes (fingerprints). It supports 58 popular hash algorithms and a lot of unique features.
    Downloads: 9 This Week
    Last Update:
    See Project
  • 2
    Die Programme, die ich für meine Besondere Lernleistung im Fach Informatik zum Thema "Sicherheit steganografischer Systeme" schreibe.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 3
    JCrypTool - Eclipse based Crypto Toolkit
    JCrypTool moved to GitHub! See https://groups.google.com/d/topic/jcryptool-developers/nauEXL6vsbk/discussion for more information and visit our new project home at https://github.com/jcryptool
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    JCrypTool Plug-ins
    JCrypTool moved to GitHub! See https://groups.google.com/d/topic/jcryptool-developers/nauEXL6vsbk/discussion for more information and visit our new project home at https://github.com/jcryptool
    Downloads: 0 This Week
    Last Update:
    See Project
  • Atera all-in-one platform IT management software with AI agents Icon
    Atera all-in-one platform IT management software with AI agents

    Ideal for internal IT departments or managed service providers (MSPs)

    Atera’s AI agents don’t just assist, they act. From detection to resolution, they handle incidents and requests instantly, taking your IT management from automated to autonomous.
    Learn More
  • 5
    Utilities
    What is Utilities? Useful software that has for now little functionality but time-consuming will increase. Have you created a contest and don't know how to sort the participants? Get this problem with our random number generator! Get random numbers for you! Do you not know how to set up a secure password on social networks to prevent your account from being stolen? We have the random password generator for you, generating alphanumeric passwords consisting of uppercase and lowercase letters and numbers! We DON'T SEE you because it's a generator, be quiet!!! Do you want to measure the time of something? We have the running chronometer! Do you have to remember to do something at some time and you don't know where to write it? We have the reminder in which you write the time and in the event section describing what you have to do then start it and you can also leave it in the background until the notification arrives! WARNING,SOFTWARE IS VERSION 1.0,IF YOU HAVE ANSWERED PROBLEMS CONTACTUS
    Downloads: 0 This Week
    Last Update:
    See Project
  • 6
    The Eclipse XML-Security Plug-In allows you to experiment with the W3C recommendations on digital signatures and encryption and to learn all about their background. Arbitrary XML documents can be canonicalized, signed, verified and en- or decrypted.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 7

    smartIDS

    Lightweight intrusion detection for IoT and embedded devices.

    The aim of the project is a lightweight intrusion detection library for embedded devices which supports MSP430 and ARM Cortex based devices. Features include DSP/SIMD support, IoT and embedded protocols, distributed operation, event and history management, tool supported configuration and visualization. There is a Java port that supports less features.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 8
    spule stands for "secure practical universal lecture evaluator". spule is a program to automatize the evaluation of lecture polls.
    Downloads: 0 This Week
    Last Update:
    See Project
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