Best Free and Open Source Software

posted by Rianne Schestowitz on Oct 27, 2025

• Hydraulics Channel GVF - compute water surface profiles - LinuxLinks

  Hydraulics Channel GVF computes water surface profiles in a prismatic channel for gradually varied flow.

  This is free and open source software.

• Share Preview - test social media cards locally - LinuxLinks

  Share Preview lets you review and debug websites metadata tags for social media share.

  This is free and open source software.

• Draughts - comprehensive draughts (checkers) game - LinuxLinks

  Draughts is a comprehensive checkers/draughts game featuring 16 international game variants, multiple AI difficulty levels, and a beautiful modern interface built with GTK4 and LibAdwaita.

  Whether you’re a casual player or a serious competitor, Draughts offers engaging gameplay for players of all skill levels.

  This is free and open source software.

• Mangal - CLI manga downloader - LinuxLinks

  Mangal is billed as an advanced CLI manga downloader.

  This is free and open source software

• deej - open-source hardware volume mixer - LinuxLinks

  deej is an open-source hardware volume mixer for Windows and Linux PCs.

  It lets you use real-life sliders (like a DJ!) to seamlessly control the volumes of different apps (such as your music player, the game you’re playing and your voice chat session) without having to stop what you’re doing.

• 7 Best Free and Open Source Image Upscaling Tools - LinuxLinks

  There is a wide range of image upscaling tools for Linux. We’ve surveyed the scene and cherry-picked some useful open source tools.

  Here’s our verdict captured in a legendary LinuxLinks-style ratings chart. Only free and open source software is eligible for inclusion here.