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.

  • Cloud tools for web scraping and data extraction Icon
    Cloud tools for web scraping and data extraction

    Deploy pre-built tools that crawl websites, extract structured data, and feed your applications. Reliable web data without maintaining scrapers.

    Automate web data collection with cloud tools that handle anti-bot measures, browser rendering, and data transformation out of the box. Extract content from any website, push to vector databases for RAG workflows, or pipe directly into your apps via API. Schedule runs, set up webhooks, and connect to your existing stack. Free tier available, then scale as you need to.
    Explore 10,000+ tools
  • Nonprofit Budgeting Software Icon
    Nonprofit Budgeting Software

    Martus Solutions provides seamless budgeting, reporting, and forecasting tools that integrate with accounting systems for real-time financial insights

    Martus' collaborative and easy-to-use budgeting and reporting platform will save you hundreds of hours each year. It's designed to make the entire budgeting process easier and create unlimited financial transparency.
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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: 200,088 This Week
    Last Update:
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  • 2
    BleachBit

    BleachBit

    deletes junk files to free disk space and improve privacy

    BleachBit frees disk space and maintains privacy. Cleans cache, Internet history, temporary files, logs, cookies, Firefox, Google Chrome, Flash, Windows, Linux, and more. Downloads are at www.bleachbit.org and source code is at GitHub.
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    Downloads: 953 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
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    Downloads: 380 This Week
    Last Update:
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  • 4
    Clam sentinel is a program that detects file system changes and automatically scans the files added or modified using ClamWin. Require the installation of ClamWin. For Microsoft Windows 98/98SE/Me/2000/XP/Vista, Windows 7 and Windows 8.1.
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    Downloads: 237 This Week
    Last Update:
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  • Construction Management Software for subcontractors Icon
    Construction Management Software for subcontractors

    PLEXXIS is a subcontractor solution uniting project management, accounting, estimating, takeoff and mobile apps on a single tech stack.

    Plexxis serves subcontractors who seek elite team cohesion and performance. Coupling cloud construction management software, on-premise and hosted solutions, we unite operations, estimating, accounting and field apps on a single technology stack that enables live feedback between bidding, field and finance while in-house services drive continuous adoption.
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  • 5
    IPCop Firewall

    IPCop Firewall

    Linux firewall distribution geared towards home and SOHO users.

    The IPCop Firewall is a Linux firewall distribution. It is geared towards home and SOHO users. The IPCop web-interface is very user-friendly and makes usage easy.
    Downloads: 94 This Week
    Last Update:
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  • 6
    Robolinux

    Robolinux

    Announcing Robolinux Cinnamon 14.1

    Announcing The New Robolinux Series 14 Mate LTS - 2034 Robolinux is very pleased to announce a completely new 14.1 Mate privacy centered 1inux operating system you can download freely while also offering our users an optional 14+ advanced upgrade which comes with our Untracker and FAAST Boot along with one click popular privacy software installers like Tor and I2p, Wireshark and Bleachbit plus many more for a fair and reasonable price. Robolinux14.1-Mate is ideal for beginners and advanced users. We are proud that it comes with Enoch AI which is TOTALLY 100% PRIVATE, FREE, HONEST & UNCENSORED built into Robolinux Cinnamon 14.1 The Robolinux 14.1 version with rock solid Long Term Support through 2034! requires users to set secure boot in their BIOS. It is currently available in the Cinnamon desktop flavor. we will release series 14 Xfce version in the next two months.For more information please see Readme file. Warmest regards John Martinson Robolinux.org
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    Downloads: 115 This Week
    Last Update:
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  • 7
    xpy
    xpy is a small software, securing your Windows 2000/XP/2003 installation and protecting your privacy. In addition to so-called Antispy features, it disables common security threats (RPC/DCOM, LMHash) and increases your Windows performance.
    Downloads: 11 This Week
    Last Update:
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  • 8
    THIS PROJECT HAS BEEN ABANDONED SINCE 2007, NO SUPPORT WILL BE PROVIDED. Winpooch is a watchdog for Windows (2000, XP, 2003, but only 32-bits). It detects modifications in your system, so as to detect a trojan or a spyware installation. It also includes a real-time anti-virus. Set your own security level for anti-spyware, ant
    Downloads: 8 This Week
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  • 9
    This is a program which encrypts all kind of data. I implemented GOST 28147-89 (64, 256)and extended Blowfish (64, 512) in CFB mode. The key is retreived from SHA256/512 hashed user password. In future there will be Mono port.
    Downloads: 0 This Week
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  • Contractor Foreman is the most affordable all-in-one construction management software for contractors and is trusted by contractors in more than 75 countries. Icon
    Contractor Foreman is the most affordable all-in-one construction management software for contractors and is trusted by contractors in more than 75 countries.

    For Residential, Commercial and Public Works Contractors

    Starting at $49/m for the WHOLE company, Contractor Foreman is the most affordable all-in-one construction management system for contractors. Our customers in 75+ countries and industry awards back it up. And it's all backed by a 100 day guarantee.
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  • 10
    B-Trust eDoc is a program built on top of LibDigiDoc a free implementation of the OpenXAdES standard for signing/encrypting files using smartcard tokens. It also contains Openssl and PKCS11 wrapper classes in C++ which might be useful to developers.
    Downloads: 0 This Week
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  • 11
    Corporate Data Protection and Network Security is a IT project targeting policy-based and fully-automated data protection, encryption and transmission. We plan to create self-diagnostic risk-predict enterprise environment with artificial intelligence.
    Downloads: 0 This Week
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  • 12
    CryBit Password

    CryBit Password

    Safe and Simple

    Crybit Password Password Storage Software and on growing For details and Support: http://monstersoftware.clan.su Crybit Password Parola Saklama Yazılımdır ve Her Geçen Gün Gelişmektedir Detaylar Ve Destek için: http://monstersoftware.clan.su
    Downloads: 0 This Week
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  • 13

    EasyWall

    Easy to use firewall for linux beginners.

    New improved iptables tool, based on my earlier project Easy Linux Firewall, but rewritten from scratch using Perl. It's a simple rewrite for now, but i am working on adding some new features like. Some of the improvements will be web administration panel, automatic filtering daemon, TCP listener providing easy to use API so you can integrate it on many servers and centralize them in to one Web interface to control all of them. I am open to new ideas and also any kind of contributors, because I'm working on this alone and it isn't easy, so you are welcome to help.
    Downloads: 0 This Week
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  • 14
    GTCop Professional Security Appliance aims to provide a powerful tool for satellite communications, with enhanced QoS and bandwidth controls. As derived from IPCop Firewall, it is a stable, secure, easy to configure and maintain GNU/Linux firewall box.
    Downloads: 0 This Week
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  • 15
    OpenSessame is a personnel entry control and time tracking management system. Platform independent, multi-node, client-server system, written in Python, with wxPython/wxWidgets client, a web management gui and PostgreSQL database backend.
    Downloads: 0 This Week
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  • 16
    The Password tools bundle is one application combining three tools - the Analyser (shows the "strength" of your password, the Generator (generates "strong" passwords) and the Manager (stores passwords securely using Rijndael).
    Downloads: 0 This Week
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  • 17
    SME Server

    SME Server

    The Koozali SME Server is a simple and robust server gateway for SOHO

    The Koozali SME Server is the open source community side of the original e-smith server. SME Server consists of a modified Red Hat / CentOS Linux installation, together with a number of server applications as well as the server management web panel. Its strengths are its ease to use for anyone able to use a web interface, and its robustness, giving the ability to recover its initial state even after any upgrade. The server is designed for Small Offices and Home Offices to act as a gateway with a firewall web and email services, but fits also home user needs or even the needs as a simple and robust server only in the cloud to host your website projects and emails.
    Downloads: 0 This Week
    Last Update:
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  • 18
    Stealth VM For Ubuntu & All Derivatives

    Stealth VM For Ubuntu & All Derivatives

    Run Windows XP & 7 Virus Free Inside Ubuntu & All Derivatives

    Announcing Stealth VM Software for Ubuntu & Derivatives! http://robolinux.org/ubuntu This is great news for Windows XP Users who either cannot afford or simply do not want to upgrade to Windows 7 or 8 when XP expires! Are You one of the many new Ubuntu Users around the world who are migrating from Windows XP to Linux because you don't want to to be forced to spend hundreds of dollars or throw away your PC or laptop that is in perfectly good working condition? If you are like most Windows XP Users who are just switching to Linux you are worried about being able to run your Windows applications. Indeed that is a problem you are looking to solve as quickly as possible. Stealth VM Software has solved your Windows to Linux migration dilemma already! You don't need to worry about viruses or malware infecting Windows & its data because Stealth VM Software invented by Robolinux keeps a protected clone of Windows and mirrors your data in a secure Ubuntu Linux partition.
    Downloads: 0 This Week
    Last Update:
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