April 2026 updates to the largest compilation of recommended free and open source software available for Linux.
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ROS 2 – software framework for building robot applications
ROS 2 is a software framework for building robot applications, offering libraries, tools, and core infrastructure.
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10 Best Free and Open Source Graphical MPD Clients
MPD is a powerful server-side application for playing music. We recommend our favourite open source graphical MPD clients.
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Merkaartor – OpenStreetMap mapping program
Merkaartor is a native desktop editor for OpenStreetMap written in C++ and Qt.
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SkyMPC – simple MPD client
SkyMPC is a Qt-based client for MPD (Music Player Daemon) with a deliberately simple design.
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Nyarch Linux – anime-themed Linux distribution
Nyarch Linux is an anime-themed Linux distribution based on Arch Linux and EzArcher.
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Ohcount – source code line counter and analysis library
Ohcount is a source code line counter and analysis library originally developed for Ohloh and used to generate code statistics reports.
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Pipeweaver – PipeWire Audio Management and Routing
Pipeweaver is a PipeWire audio management tool for building virtual channels, routing signals, mixing sources, and external control.
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uMap – web application for creating and publishing custom interactive maps
uMap is a web application for creating and publishing custom interactive maps based on OpenStreetMap layers.
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dwarview – graphical utility for inspecting DWARF debugging information
dwarview is a graphical utility for inspecting DWARF debugging information stored in executable files and other objects.
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Pure Maps – native map and navigation application for Linux
Pure Maps is a native map and navigation application for Linux that’s aimed particularly at mobile Linux platforms.
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Pulsemeeter – Linux Audio Routing and Mixer
Pulsemeeter is a Linux audio routing and mixer application for creating virtual devices and directing audio between inputs and outputs.
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lldap – lightweight LDAP authentication server
lldap is a lightweight LDAP authentication server with a web interface, GraphQL API, multiple databases and simple self-hosted user management.
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18 Best Free and Open Source Terminal-Based Internet Radio Apps
This article recommends our favourite terminal-based internet radio apps. Free and open source software only.
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Mermaid – generate diagrams from markdown-like text
Mermaid is a JavaScript-based diagramming and charting tool that lets you create and maintain visualisations using Markdown-inspired syntax.
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Sonusmix – PipeWire Audio Routing and Device Management
Sonusmix is a graphical PipeWire audio router for creating virtual devices, managing applications, and preserving routing setups.
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PMRP-NG – terminal internet radio player
PMRP-NG is a lightweight terminal internet radio player for Linux and macOS that uses Radio-Browser to provide searchable access.
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toofan – minimal, lightning-fast typing TUI
toofan is a terminal typing practice tool built around a lightweight text user interface.
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ToaruOS – independent, from-scratch hobby operating system
ToaruOS is a from-scratch Unix-like operating system that provides a representative desktop OS environment for learning and experimentation.
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ufetch – system profiler
ufetch is a small system information utility for Unix-like operating systems.
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