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

  • Gen AI apps are built with MongoDB Atlas Icon
    Gen AI apps are built with MongoDB Atlas

    The database for AI-powered applications.

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    Simple, Secure Domain Registration

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    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.
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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: 837,257 This Week
    Last Update:
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  • 2
    JSignPdf
    JSignPdf is an open-source Java application that adds digital signatures to PDF documents.
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    Downloads: 919 This Week
    Last Update:
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  • 3
    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: 902 This Week
    Last Update:
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  • 4
    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: 415 This Week
    Last Update:
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  • 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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  • 5
    ANts P2P
    ANts P2P realizes a third generation P2P net. It protects your privacy while you are connected and makes you not trackable, hiding your identity (ip) and crypting everything you are sending/receiving from others.
    Downloads: 3 This Week
    Last Update:
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  • 6
    Passky Desktop Application

    Passky Desktop Application

    Simple, modern, lightweight and open-source password manager

    Passky is a free and open source password manager that is both powerful and easy to use. It is available in multiple languages as an application for Windows, macOS, Linux and Android, but also as an extension for Chrome, Firefox, Edge and Opera web browsers. This password manager helps you keep all your passwords safe : e-commerce sites, applications, social networks, games, etc. With Passky, you can create, manage and store up to 1000 passwords for free in a secure and encrypted way. Besides, Passky has a built-in random password generator to create strong passwords. It also has a well-designed user interface that makes managing your passwords easy. What’s more, you even have the choice of the theme of the application: Dark, Solarized Dark, Tokyo Night, Dracula, Monokai, Blue, Nord, Gray and Light... Finally, note that if you are currently using another password manager, you have the option to import your passwords from all major password managers.
    Downloads: 5 This Week
    Last Update:
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  • 7
    KeexyBox

    KeexyBox

    The box to keep the Internet under your control

    KeexyBox allows you to do parental control, block ads, limit telemetry, and browse the Internet anonymously from your home network without installing any software on your devices. It also can be used to create a public wireless access point with the captive portal. It is a software program which requires a Raspberry PI box and which is installed on Raspbian. It constitutes a cut-off point between your devices (computers, tablets, smartphones, etc.) and your router or Internet box. KeexyBox acts as a default gateway and DNS server for the devices in your home network. It thus intercepts all connections to the Internet to carry out website filtering or to activate browsing via the Tor anonymity network according to connection profiles which you have configured.
    Downloads: 3 This Week
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  • 8
    Portable and simple program for text and files encryption (Symmetric, Asymmetric and Steganography)
    Downloads: 0 This Week
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  • 9
    FIRECOPS++ is a firewall, connection tracker and packet customizer system for Microsoft Windows developed under the .NET framework.
    Downloads: 0 This Week
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  • Keep company data safe with Chrome Enterprise Icon
    Keep company data safe with Chrome Enterprise

    Protect your business with AI policies and data loss prevention in the browser

    Make AI work your way with Chrome Enterprise. Block unapproved sites and set custom data controls that align with your company's policies.
    Download Chrome
  • 10
    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
    Last Update:
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  • 11
    JVerify is a Java app that enables you to monitor for changes in any file on your Unix system, most notably executable binaries, thus alerting you to a possibly backdoored binary. It runs on any platform that supports JSDK 1.4.x and has a MySQL database
    Downloads: 0 This Week
    Last Update:
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  • 12
    Kippo-Graph

    Kippo-Graph

    Full featured script to visualize statistics from a Kippo SSH honeypot

    Kippo-Graph is a full featured script to visualize statistics from a Kippo SSH honeypot. It uses “Libchart” PHP chart drawing library by Jean-Marc Trémeaux, “QGoogleVisualizationAPI” PHP Wrapper for Google’s Visualization API by Thomas Schäfer and geoPlugin geolocation technology (geoplugin.com). Kippo-Graph currently shows 24 charts, including top 10 passwords, top 10 usernames, top 10 username/password combos, success ratio, connections per IP, connections per country, probes per day, probes per week, ssh clients, top 10 overall input, top 10 successful input, top 10 failed input and many more. There are also geolocation data extracted and displayed with Google visualization technology using a Google Map, a Intensity Map, etc. Lastly, input-related data and statistics are also presented giving an overview of the action inside the system and there is live playback ability of captured sessions.
    Downloads: 0 This Week
    Last Update:
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  • 13
    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
    Last Update:
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  • 14
    Quickly encrypt and decrypt your files with Petri. View encrypted text and image files containing your passwords or other sensitive information. Petri is written in Java and therefore runs on any operating system supporting the Java Runtime Environment.
    Downloads: 0 This Week
    Last Update:
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