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

  • 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.
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  • Custom VMs From 1 to 96 vCPUs With 99.95% Uptime Icon
    Custom VMs From 1 to 96 vCPUs With 99.95% Uptime

    General-purpose, compute-optimized, or GPU/TPU-accelerated. Built to your exact specs.

    Live migration and automatic failover keep workloads online through maintenance. One free e2-micro VM every month.
    Try Free
  • 1
    BunkerWeb

    BunkerWeb

    Next-generation and open-source Web Application Firewall (WAF).

    Being a full-featured web server (based on NGINX under the hood), it will protect your web services to make them "secure by default". BunkerWeb integrates seamlessly into your existing environments (Linux, Docker, Swarm, Kubernetes, …) and is fully configurable (don't panic, there is an awesome web UI if you don't like the CLI) to meet your own use-cases . In other words, cybersecurity is no more a hassle.
    Downloads: 13 This Week
    Last Update:
    See Project
  • 2
    tirreno

    tirreno

    Open-source security framework for devs and product teams

    tirreno is an open-source security framework. tirreno [tir.ˈrɛ.no] helps understand, monitor, and protect your product from threats, fraud, and abuse. While classic cybersecurity focuses on infrastructure and network perimeter, most breaches occur through compromised accounts and application logic abuse that bypasses firewalls, SIEM, WAFs, and other defenses. tirreno detects threats where they actually happen: inside your product. tirreno is a few-dependency, "low-tech" PHP/PostgreSQL application. After a straightforward five-minute installation, you can ingest events through API calls and immediately access a real-time threat dashboard.
    Downloads: 3 This Week
    Last Update:
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  • 3

    INVISIX

    INVISIX.IO - Corporate-grade privacy solution, out of the box.

    🚫 One tiny box. Infinite freedom. Network-wide AdBlocker and TrackerBlocker. 💼 Secure free VPN through your office or home network — remote traffic enjoys the same AdBlock protection. 🏆 Designed for corporations, freelancers, and small companies. Simple enough for home users due to its reduced price.
    Downloads: 0 This Week
    Last Update:
    See Project
  • 4
    Lakhash

    Lakhash

    An experimental cloud storage service featuring client-side encryption

    An experimental cloud storage service built with Next.js, featuring client-side file encryption, a dedicated password vault, advanced integrity verification functionality, and a convenient UI. Lakhash is also equipped with the password vault. Check it out at https://lakhash.netlify.app GitHub repository: https://github.com/Northstrix/Lakhash Codeberg repository: https://codeberg.org/Northstrix/Lakhash/ The related Medium article can be found at https://medium.com/@Northstrix/2be1c60ec6e8
    Downloads: 0 This Week
    Last Update:
    See Project
  • 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.
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  • 5
    Remme PKI (d) Protocol

    Remme PKI (d) Protocol

    Blockchain-based distributed PKI protocol

    Remme Protocol is a blockchain-based protocol focused on digital key and identity lifecycle management to resolve issues related to cybersecurity, IoT connectivity, data integrity, digital copyright protection, transparency etc. Some of the groundbreaking features include: - Free Rate Limited Transactions - Low Latency Block confirmation (0.5 seconds) - Attribute-based identity and access control - Designed for Sparse Header Light Client Validation - Time Delay Security - Hierarchical Role Based Permissions - Support for Biometric Hardware Secured Keys (e.g. Apple Secure Enclave) - Designed for Parallel Execution of Context Free Validation Logic - Designed for Inter Blockchain Communication Read the Tech paper here: https://github.com/Remmeauth/Documentation/blob/master/RemmeProtocolTechPaper.md
    Downloads: 0 This Week
    Last Update:
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