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

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  • 1
    KeePass

    KeePass

    A lightweight and easy-to-use password manager

    KeePass Password Safe is a free, open source, lightweight, and easy-to-use password manager for Windows, Linux and Mac OS X, with ports for Android, iPhone/iPad and other mobile devices. With so many passwords to remember and the need to vary passwords to protect your valuable data, it’s nice to have KeePass to manage your passwords in a secure way. KeePass puts all your passwords in a highly encrypted database and locks them with one master key or a key file. As a result, you only have to remember one single master password or select the key file to unlock the whole database. And the databases are encrypted using the best and most secure encryption algorithms currently known, AES and Twofish. See our features page for details.
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    Downloads: 1,541,672 This Week
    Last Update:
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  • 2
    WinSCP

    WinSCP

    WinSCP is a free SFTP, SCP, S3, WebDAV, and FTP client for Windows.

    WinSCP is a popular free file manager for Windows supporting SFTP, FTP, FTPS, SCP, S3, WebDAV and local-to-local file transfers. A powerful tool to enhance your productivity with a user-friendly interface and automation options like .NET assembly or batch file scripting. Use WinSCP also for file editing, directory synchronization and site management. WinSCP is open-source and well documented. It is available in English and many other languages.
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    Downloads: 235,596 This Week
    Last Update:
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  • 3
    AWStats

    AWStats

    AWStats Log Analyzer

    AWStats is a free powerful and featureful server logfile analyzer that shows you all your Web/Mail/FTP statistics including visits, unique visitors, pages, hits, rush hours, os, browsers, search engines, keywords, robots visits, broken links and more
    Leader badge
    Downloads: 353 This Week
    Last Update:
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  • 4
    Browser for Tor with Onion Router

    Browser for Tor with Onion Router

    Browser for Tor based on Dooble & Vidalia as integrated Addon

    Tor now plugs into the Browser. Dooble Web Browser, a secure open source userfriendly tool to explore the web secure over Tor. Steer Tor in the Browser (in Settings/Proxy/Tor) with an Add-On based on Vidalia. Just start the Add-On "Tor" in the Browser Add-On-Menu and in Settings/Proxy.
    Downloads: 17 This Week
    Last Update:
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  • Go from Code to Production URL in Seconds Icon
    Go from Code to Production URL in Seconds

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  • 5

    CIDRAM

    CIDRAM: Classless Inter-Domain Routing Access Manager.

    CIDRAM (Classless Inter-Domain Routing Access Manager) is a PHP script designed to protect websites by blocking requests originating from IP addresses regarded as being sources of undesirable traffic, including (but not limited to) traffic from non-human access endpoints, cloud services, spambots, scrapers, etc. It does this by calculating the possible CIDRs of the IP addresses supplied from inbound requests and then attempting to match these possible CIDRs against its signature files (these signature files contain lists of CIDRs of IP addresses regarded as being sources of undesirable traffic); If matches are found, the requests are blocked.
    Downloads: 2 This Week
    Last Update:
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  • 6
    MoneroSwapper

    MoneroSwapper

    Anonymous swaps between Monero (XMR) and 1,900+ cryptocurrencies

    MoneroSwapper is a privacy-focused, non-custodial cryptocurrency exchange enabling instant anonymous swaps between Monero (XMR) and 1,900+ cryptocurrencies. No KYC, no registration, no data collection. Swap BTC, ETH, USDT, LTC and hundreds more to XMR and back — with competitive rates aggregated from top providers. Our minimal-JavaScript interface is available in 20+ languages and accessible via Tor for maximum privacy. Built for users who believe privacy is a fundamental right. Fast transactions, real-time rates, and zero identity verification required.
    Downloads: 0 This Week
    Last Update:
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  • 7

    PW Generator

    Password generator per site base on a single password

    Try to develop a password generating algorithm and front-end using c# and .NET framework. Per site password with variaous options and fixed result. Use for make and find password. Easy to use.
    Downloads: 0 This Week
    Last Update:
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  • 8
    S.I.P.E.R.

    S.I.P.E.R.

    Advanced website blocking and productivity tool

    A powerful, user-friendly website blocking and productivity application built with modern GTK 4 and Libadwaita. S.I.P.E.R. helps you maintain focus and productivity by blocking distracting websites with advanced features like Pomodoro focus mode, comprehensive statistics, and multi-language support.
    Downloads: 0 This Week
    Last Update:
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  • 9
    A full-featured, Java-based back-office suite specifically designed for use in global financial institutions to facilitate straight-through-processing and other much-needed operational efficiencies. Built using best-of-breed, open-source technologies.
    Downloads: 0 This Week
    Last Update:
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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

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  • 10
    Packet Filter (PF) is OpenBSD\'s firewall and traffic shaper. This is a port of this excellent software to FreeBSD.
    Downloads: 0 This Week
    Last Update:
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