MailScanner is a open source email security system design for Linux-based email gateways. It is used at over 30,000 sites around the world, protecting top government departments, commercial corporations and educational institutions.
Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. It reduces bandwidth and improves response times by caching and reusing frequently-requested web pages. Squid has extensive access controls and makes a great server accelerator.
Windows Terminal is a new, modern, feature-rich, productive terminal application for command-line users. It includes many of the features most frequently requested by the Windows command-line community including support for tabs, rich text, globalization, configurability...
Meet the freeform digital canvas where ideas, content, and people come together.
TrueNAS (formerly FreeNAS) is an operating system that can be installed on virtually any hardware platform to share data over a network. TrueNAS is the simplest way to create a centralized and easily accessible place for your data.
Free image editor for Windows, offering layer support, plugins, special effects, and portable use without installation. Lightweight and ad-free.
PDF-XChange Viewer is an alternative viewer for PDF files that enables you to view and annotate PDF files. You can add text, sticky notes, and other annotations and save them to the file, which will be compatible with the standard 
Adobe Acrobat Reader.
Open source non-destructive RAW photo editor and image database with lighttable and darkroom views, real-time editing, HDR and scientific image support.
Cascading Style Sheets (CSS) is a simple mechanism for adding style (e.g., fonts, colors, spacing) to Web documents.
PostgreSQL is a powerful, open source object-relational database system with over 35 years of active development that has earned it a strong reputation for reliability, feature robustness, and performance.
Arduino is an open-source electronics prototyping platform based on flexible, easy-to-use hardware and software. It's intended for artists, designers, hobbyists, and anyone interested in creating interactive objects or environments.
A low-cost, capable little PC which can be used for many of the things that your desktop PC does, like games, spreadsheets and word-processing. It also plays high-definition video. We want to see it being used by children and young people all over the world to learn programming.
MX Linux is an operating system - a cooperative venture between the antiX and former MEPIS communities. It is a midweight OS that combines an elegant and efficient desktop with simple configuration, high stability and solid performance.
Proxmox Virtual Environment is a complete and easy to use Open Source virtualization platform for running Virtual Appliances and Virtual Machines. Proxmox VE tightly integrates KVM hypervisor and LXC containers, software-defined storage and networking functionality on a single...
Software that makes the color of your computer's display adapt to the time of day, warm at night and like sunlight during the day.
Manage partitions with ease, supporting resizing, moving, and copying. Utilize GParted Live for cross-platform use on x86 machines.
The individual test methods employed by HeavyLoad can be customized to fit your needs. Can stress test CPU, hard disk, memory and GPU.
Cross-platform, free media player supports multimedia files, DVDs, streaming, offers hardware acceleration, 4K, lossless audio, and more.
Efficient file archiver offering superior compression and encryption. Supports multiple formats such as TAR, ZIP, with a unique self-extracting feature.
Python is an interpreted, interactive, object-oriented, extensible programming language. It provides an extraordinary combination of clarity and versatility, and is free and comprehensively ported.
AdGuard is the best way to get rid of intrusive ads and online tracking, and to protect your computer from malware. Make your web surfing faster, safer and more comfortable with AdGuard!.
The new EVE-NG platform is ready for todays requirements. It allows enterprises, e-learning providers/centres, individuals and group collaborators to create virtual proof of concepts, solutions and training environments.
Network Design Tool auto-generates the Rack Diagram, Wiring Log Book, 3D view, Bill of Materials and Specification with project costs. You don't have to manually do cost estimations any longer.
Veeam Agent for Microsoft Windows and Veeam Agent for Linux work with Veeam Availability Suite to deliver Availability for ALL workloads — virtual, physical and cloud — from a single management console, extending Veeam’s leadership position from being the best for VMware vSphere...
OpenWISP is a free and open-source platform for efficient IT network deployment, monitoring & management. It allows automation of many aspects of networks: from configuration to monitoring, RADIUS, hotspots, mesh and firmware upgrades, all backed by the reliability of the...
Cachet is a simple to use and easy to manage status page system and can be easily installed and used to track third party service letting your users know what's going on.
Leaflet is a modern open-source JavaScript library for mobile-friendly interactive maps. It is developed by Vladimir Agafonkin with a team of dedicated contributors. Weighing just about 28 KB of JS code, it has all the features most developers ever need for online maps.
Strut is a GUI / WYSIWYG editor for creating ImpressJS and/or Bespoke.js presentations. ImpressJS presentation are like Prezi presentations only better since ImpressJS allows you to create 3D transitions.
Self-hosted Speedtest for HTML5. Easy setup, examples, configurable, mobile friendly. Supports PHP, Node, Multiple servers, and more.
Web GUI for youtube-dl. Download videos from sites like YouTube, Vimeo, Dailymotion, etc.
The TURN Server is a VoIP media traffic NAT traversal server and gateway. It can be used as a general-purpose network traffic TURN server and gateway, too.
The OX App Suite by Open-Xchange is web-based platform offering a suite of apps like an email client, calendar, contacts magement, cloud storage with synchronization and productivity apps for word processing, spreadsheets and presentations.
Open-source kanban board offering real-time collaboration, customizable labels, filtered views, cards, comments, member assignments, and self-hosting options.
Free Opener allows users to view, edit and print many different types of files without having to download specialty software. Currently, the software supports over 80 different file formats including Microsoft Office Files (.doc, .docx, .ppt, .pptx, .xls, .xlsx, .xlsm, .msg, .
RSS-Bridge is a PHP project capable of generating RSS and Atom feeds for websites that don't have one. It can be used on webservers or as a stand-alone application in CLI mode.
SPFtoolbox is an open-source Javascript and PHP app to look up DNS records such as SPF, MX, Whois, and more
The Open Vulnerability Assessment System (OpenVAS) is a framework of several services and tools offering a comprehensive and powerful vulnerability scanning and vulnerability management solution.
IndieAuth is a way to use your own domain name to sign in to websites. It works by linking your website to authentication providers such as Twitter or Google, then entering your domain name in the login form on websites that support IndieAuth.
Offers on-premise or hosted Git repository management, including issue tracking, wikis, code reviews, and continuous integration and deployment.
Privacy-focused diagramming software supporting real-time collaboration, offline mode, and cloud storage without ads or registration.
Quad9 is a free, recursive, anycast DNS platform that provides end users robust security protections, high-performance, and privacy.
Calibre-Web is a web app providing a clean interface for browsing, reading and downloading eBooks using an existing 
calibre database.
Packt is the online library and learning platform for professional developers. Learn Python, JavaScript, DevOps, Linux and more with eBooks, videos and courses.
Open-source password manager storing passwords, notes, and attachments offline with AES-256 encryption, browser extensions, cross-platform support, and TOTP.
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