Free and Open Source Software

posted by Rianne Schestowitz on Dec 28, 2025

• xpdig - tools to explore crossplane resources - LinuxLinks

  xpdig provides a terminal based UI (similar to k9s) to interactively explore Crossplane traces, making it easier to navigate, debug and understand objects. It leverages crossplane trace to render the object tree.

  This is free and open source software.

• dtrx - intelligent archive extraction tool - LinuxLinks

  dtrx cleanly extract many archive types.

  This is free and open source software.

• Fernflower - decompiler from Java bytecode to Java - LinuxLinks

  Fernflower is a decompiler from Java bytecode to Java.

  This is free and open source software.

• treemd - modern Markdown viewer - LinuxLinks

  treemd is a modern markdown viewer combining tree-based navigation with interactive TUI.

  Launch without flags for interactive mode with dual-pane interface, vim-style navigation, syntax highlighting, and real-time search. Use flags for CLI mode to extract, filter, and analyze markdown structure.

  This is free and open source software.

• Seanime - media server - LinuxLinks

  Seanime is a media server with a web interface and desktop app for managing your local library, streaming anime and reading manga.

  This is free and open source software.

• Wallpaper Splitter - apply a single image - LinuxLinks

  On KDE it is not possible to apply an image so that it spans across all of your screens. This tool fixes that by splitting your image according to your screen setup. It can also directly apply the image as your wallpaper.

  Keep in mind that this only works with images, not with any fancy wallpaper engine or even dynamic wallpapers.

  This is free and open source software.

• hcxdumptool - capture packets from wlan devices - LinuxLinks

  hcxdumptool is a tool to capture packets from WLAN devices and to discover potential weak points within own WiFi networks by running layer 2 attacks against the WPA protocol.

  It’s designed to run (mostly headless) on small systems like a Raspberry Pi Zero.

  This is free and open source software.

• Hextazy - colorful hexadecimal editor - LinuxLinks

  Hextazy is a colorful hexadecimal editor, inspired by hexyl.

  This is free and open source software.

• lnko - simple stow-like dotfile linker - LinuxLinks

  lnko is a simple stow-like dotfile linker which adds relative symlinks, tree folding, ignore patterns, and dry-run mode.

  This is free and open source software.

• Qt Hearts - classic Hearts card game - LinuxLinks

  Qt Hearts is a classic card game.

  Try to avoid taking hearts and especially the Queen of Spades.

  Rules:

  Each heart is worth 1 point. Queen of Spades is worth 13 points. Lowest score wins. “Shoot the Moon” – take all hears and QoS to give 26 points to others.

  This is free and open source software.

• Harlequin - Terminal-based SQL IDE - LinuxLinks

  Harlequin is an easy, fast, and beautiful database client for the terminal.

  It runs anywhere. Any shell, any terminal, any machine. Fish in tmux on Alpine over SSH? Sure. Windows cmd? Yep.

  Whether in-process, local, or in the cloud, Harlequin makes it easy to explore your data.

  This is free and open source software.

• flir - parse and rewrite R code - LinuxLinks

  flir is an R package to detect and rewrite code patterns. It was originally created to be an R linter and an alternative to lintr. However, it may be better to view it as a tool to refactor any type of code by detecting and rewriting custom patterns.

  flir comes with a list of built-in rules and therefore can still be used as a linter.

  This is free and open source software.

• b4n - TUI for the Kubernetes API - LinuxLinks

  b4n is a terminal user interface (TUI) for the Kubernetes API, created mainly for learning the Rust programming language.

  It is heavily based on the k9s project and built using the kube-rs and ratatui crates.

  This is free and open source software.