| soapui | Most Advanced REST & SOAP Testing Tool in the World |
| symphony | Open-source solver, callable library, and development framework for mixed-integer linear programs (MILPs) |
| simutrans | Simulation game in which the player strives to run a successful transport system |
| supercollider | Programming language for real time audio synthesis |
| sem | Cli to operate on semaphore ci (2.0) |
| timew-sync-server | Server component of timewarrior synchronization application |
| tandem-aligner | Parameter-free algorithm for sequence alignment |
| timemachine | JACK audio recorder |
| seq24 | Minimal loop based midi sequencer |
| tiptop | Performance monitoring tool for Linux |
| sunshine | Game stream host for Moonlight |
| smooth | Object-oriented class library for C++ application development |
| sixpair | Pair with SIXAXIS controllers over USB |
| superd | Unprivileged user service supervisor |
| slurm-spank-x11 | Plugin for SLURM to allow for interactive X11 sessions |
| stone-phaser | Classic analog phaser effect, made with DPF and Faust |
| taskserver | Server for synchronising Taskwarrior 2 clients |
| status-im | Desktop client for the Status Network |
| seasocks | Tiny embeddable C++ HTTP and WebSocket server |
| sienna | Fast-paced one button platformer |
| stilo-themes | Minimalistic GTK, gnome shell and Xfce themes |
| snake4 | Game starring a fruit-eating snake |
| snippetexpanderx | Your little expandable text snippet helper auto expander daemon |
| socalabs-sid | Socalabs Commodore 64 SID Emulation Plugin |
| stalonetray | Stand alone tray |
| teensyduino | Open-source electronics prototyping platform |
| spectre-meltdown-checker | Spectre & Meltdown vulnerability/mitigation checker for Linux |
| thunar-volman | Thunar extension for automatic management of removable drives and media |
| sddm-sugar-dark | Dark SDDM theme from the sugar family |
| simple-live-app | Simply Watch Live |
| slweb | Static website generator which aims at being simplistic |
| sticky | Sticky notes app for the Linux desktop |
| tagutil | Scriptable music files tags tool and editor |
| slurm-spank-stunnel | Plugin for SLURM for SSH tunneling and port forwarding support |
| sentry-native | Sentry SDK for C, C++ and native applications |
| terminator | Terminal emulator with support for tiling and tabs |
| slurm | Simple Linux Utility for Resource Management |
| soi | Physics-based puzzle game |
| setools | SELinux Policy Analysis Tools |
| slobdict | Modern, lightweight GTK 4 dictionary app |
| squeekboard | Virtual keyboard supporting Wayland |
| strutcpp | Collection of string utilities |
| spaceFM | Multi-panel tabbed file manager |
| stardust | Space flight simulator |
| systemd-lock-handler | Translates systemd-system lock/sleep signals into systemd-user target activations |
| sonic-lineup | Comparative visualisation of related audio recordings |
| smtube | Play and download Youtube videos |
| swayimg | Image viewer for Sway/Wayland |
| simple64 | Easy to use N64 emulator |
| sshfs | FUSE-based filesystem that allows remote filesystems to be mounted over SSH |
| speechd | Common interface to speech synthesis |
| superTux | Classic 2D jump'n run sidescroller game |
| seer | Qt gui frontend for GDB |
| shadershark | OpenGL/X11 application for GNU/Linux consisting of a single window that shows simple 3D scene of a textured rectangle with applied vertex and fragment shaders (GLSL) |
| spatial-shell | Implementing a spatial model inspired by Material Shell, for i3 and sway |
| shticker-book-unwritten | Minimal CLI launcher for the Toontown Rewritten MMORPG |
| splayer | Simple Netease Cloud Music player |
| storrent | Implementation of the BitTorrent protocol that is optimised for streaming media |
| sysvinit | Utilities related to booting and shutdown |
| tiscamera | Linux sources and UVC firmwares for The Imaging Source cameras |
| scream | Audio receiver for the Scream virtual network sound card |
| tana | Intelligent all-in-one workspace |
| shortwave | Find and listen to internet radio stations |
| steamtinkerlaunch | Linux wrapper tool for use with the Steam client for custom launch options and 3rd party programs |
| sxiv | Simple X Image Viewer |
| shadow | Suite containing authentication-related tools such as passwd and su |
| taktuk | Efficient, large scale, parallel remote execution of commands |
| sequeler | Friendly SQL Client |
| sunxi-tools | Tools for Allwinner SoC devices |
| swaymux | Program to quickly navigate sway |
| tinycdb | Utility to manipulate constant databases (cdb) |
| taler-sync | Backup and synchronization service |
| sway-audio-idle-inhibit | Prevent swayidle/hypridle from sleeping |
| shaderbg | Shader-based live wallpaper program for compositors that support wlr-layer-shell (Sway and others) |
| smartdeblur | Tool for restoring blurry and defocused images |
| snort | Network intrusion prevention and detection system (IDS/IPS) |
| tennix | Classic Championship Tour 2011 |
| snippetexpander | Your little expandable text snippet helper CLI |
| statifier | Tool for creating static Linux binaries |
| sdr-j-fm | SDR based FM radio receiver software |
| showmethekey | Show keys you typed on screen |
| thunar | Xfce file manager |
| thunar-vcs-plugin | Thunar plugin providing support for Subversion and Git |
| serious-sam-classic | Open source game engine version developed by Croteam for Serious Sam Classic |
| simpledbus | C++ wrapper for libdbus-1 |
| tinywl | A "minimum viable product" Wayland compositor based on wlroots |
| sqlite-jdbc | Library for accessing and creating SQLite database files in Java |
| timeshift-minimal | System restore tool for Linux (without runtime dependencies) |
| swaylock-fancy | swaylock bash script that takes a screenshot of the desktop, blurs the background and adds a lock icon and text |
| taskopen | Script for taking notes and open urls with taskwarrior |
| spideroak | Secure online backup and sychronization |
| socalabs-rp2a03 | Socalabs NES Ricoh 2A03 Emulation Plugin |
| tinyfecvpn | VPN Designed for Lossy Links, with Build-in Forward Error Correction(FEC) Support |
| shtns | High performance library for Spherical Harmonic Transform |
| somebar | dwm-like bar for dwl |
| screenkey | Screencast tool to display your keys inspired by Screenflick |
| spotifywm | Wrapper around Spotify that correctly sets class name before opening the window |
| swaycwd | Returns cwd for shell in currently focused sway window, or home directory if cannot find shell |
| taler-merchant | Merchant component for the GNU Taler electronic payment system |
| srm-cuarzo | Simple Rendering Manager |