• Kid3 Kid3 is an open-source program for editing the tags of music files. WindowsmacOSLinuxAndroid
• KMyMoney KMyMoney is an open-source personal finance program from the KDE community. WindowsLinux
• Kodi Kodi is a free, open-source media center that brings the videos, music and photos on your computer or network into one interface. WindowsmacOSLinuxAndroid
• ksnip ksnip is an open-source tool for taking screenshots and annotating them. WindowsmacOS
• L lazygit lazygit is an open-source terminal UI for Git commands. Windows
• LightZone LightZone is an open-source digital darkroom and RAW photo editor designed for non-destructive image processing. WindowsLinux
• L Lively Wallpaper Lively Wallpaper is a free, open-source program that lets you use videos, animations and interactive web pages as your Windows desktop wallpaper. Windows
• LM Studio LM Studio is a free desktop app for finding, downloading and chatting with AI language models on your own computer. WindowsmacOSLinux
• Mattermost Mattermost is an open-source messaging and collaboration platform that teams can run on their own servers. WindowsmacOSLinuxAndroid
• Meld Meld is an open-source visual diff and merge tool that compares two or three files or folders side by side. Windows
• M Mercurial Mercurial is a free, open-source distributed version control system. Windows
• M mitmproxy mitmproxy is an open-source interactive intercepting proxy for HTTP and HTTPS traffic. Windows
• Motrix Motrix is an open-source download manager that handles HTTP, FTP, BitTorrent and Magnet links in one interface. WindowsmacOSLinux
• Mp3tag Mp3tag is a free Windows program for editing the tags of music files. Windows
• mpv.net mpv.net is an open-source media player for Windows that wraps the mpv playback engine in a modern graphical user interface. Windows
• M MSI Afterburner MSI Afterburner is a free Windows program for graphics card overclocking and hardware monitoring. Windows
• Mullvad VPN Mullvad VPN is the open-source VPN app from Sweden-based Mullvad. WindowsmacOSAndroid
• MusicBrainz Picard MusicBrainz Picard is an open-source, cross-platform audio tagger powered by the community-maintained MusicBrainz database. WindowsmacOSLinux
• NanaZip NanaZip is an open-source file archiver based on 7-Zip, designed specifically for modern Windows environments. Windows
• Netmaker Netmaker is an open-source platform that automates fast, encrypted virtual networks built on WireGuard. Windows
• O&O ShutUp10 O&O ShutUp10++ is a free program that gathers the privacy and data-sharing settings of Windows 10 and 11 in one place. Windows
• Olive Video Editor Olive Video Editor is a free, open-source non-linear video editor. WindowsLinux
• Ollama Ollama is an open-source tool for running large language models (AI chat models) on your own computer without an online service. WindowsmacOS
• OpenBoard OpenBoard is a free, open-source interactive whiteboard program built for schools and universities. WindowsmacOSLinux
• paint.net Paint.NET is a free image and photo editing software designed for Windows PCs. Windows
• PDF Arranger PDF Arranger is a small open-source program for merging, splitting, rotating, cropping and reordering pages in PDF files. WindowsLinux
• pnpm pnpm is an open-source package manager for JavaScript and Node.js built to optimize speed and disk space. Windows
• Portmaster Portmaster is a free, open-source application firewall from Safing. Windows
• Proton Pass Proton Pass is the open-source, end-to-end encrypted password manager from Proton, the Swiss company behind Proton Mail. WindowsmacOSLinuxAndroid
• Q QEMU QEMU is a free, open-source machine emulator and virtualizer that can emulate many processor architectures. Windows
• Rainmeter Rainmeter is a free, open-source program that adds small widgets (skins) to the Windows desktop, showing things like a clock, the weather, and CPU and memory usage. Windows
• Raspberry Pi Imager Raspberry Pi Imager is the official open-source utility for flashing operating system images onto microSD cards and USB drives for Raspberry Pi devices. WindowsLinux
• RawTherapee RawTherapee is a free, open-source program for processing camera RAW files. WindowsmacOSLinux
• R RetroBar RetroBar is an open-source program that turns the Windows taskbar into the look of classic versions such as Windows 95, 98, XP and Vista. Windows
• Rnote Rnote is an open-source program for handwritten notes and sketching. Windows
• Rufus Rufus is an open-source utility designed to format and create bootable USB flash drives, memory sticks, and keys. Windows
• S SearchMyFiles SearchMyFiles is a lightweight, portable file search utility for Windows developed by NirSoft. Windows
• Session Session is an open-source, end-to-end encrypted messenger that does not ask for a phone number. WindowsmacOSLinuxAndroid
• S Shotwell Shotwell is an open-source digital photo manager originally designed for desktop environments, enabling users to import, organize, and view image collections. Windows
• Shutter Encoder Shutter Encoder is a free and open-source video, audio, and image converter powered by FFmpeg. WindowsmacOS
• Simplenote Simplenote is an open-source, lightweight note-taking application developed by Automattic. WindowsLinux
• Slack Free version available Slack is a team communication and collaboration platform designed for workspaces and organizations. WindowsmacOSLinuxAndroid
• S Sophia Script for Windows Sophia Script for Windows is an open-source PowerShell module for configuring Windows 10 and 11. Windows
• S SpaceSniffer SpaceSniffer is a free Windows program that shows where your disk space goes using colored blocks. Windows
• Streamlabs Streamlabs is a free and open-source live streaming and video recording application built on the OBS engine and Electron. WindowsmacOS
• T Tenacity Tenacity is an open-source, multi-track audio editor and recorder distributed under the GPL-2.0 license. Windows
• TigerVNC TigerVNC is an open-source, high-performance VNC client and server suite. WindowsmacOSLinux
• T TortoiseHg TortoiseHg is a series of graphical tools and a Windows shell extension for the Mercurial distributed revision control system. Windows