| aspell-nn | | Norwegian Nynorsk dictionary for aspell |
| aspell-pl | | Polish dictionary for aspell |
| aspell-pt | | Portuguese and Brazilian Portuguese dictionary for aspell |
| aspell-ru | | Russian dictionary for aspell |
| aspell-sv | | Swedish dictionary for aspell |
| aspell-uk | | Ukrainian dictionary for aspell |
| asplib | | Achim's Signal Processing LIBrary |
| aspnet-runtime | | The ASP.NET Core runtime |
| aspnet-runtime-6.0 | | The ASP.NET Core runtime |
| aspnet-runtime-7.0 | | The ASP.NET Core runtime |
| aspnet-runtime-8.0 | | The ASP.NET Core runtime |
| aspnet-targeting-pack | | The ASP.NET Core targeting pack |
| aspnet-targeting-pack-6.0 | | The ASP.NET Core targeting pack |
| aspnet-targeting-pack-7.0 | | The ASP.NET Core targeting pack |
| aspnet-targeting-pack-8.0 | | The ASP.NET Core targeting pack |
| assimp | | Library to import various well-known 3D model formats in an uniform manner |
| ast-grep | | CLI tool for code structural search, lint and rewriting |
| astroid | | A graphical threads-with-tags style, lightweight and fast, e-mail client for Notmuch |
| astromenace | | Hardcore 3D space shooter with spaceship upgrade possibilities |
| astroterm | | A planetarium for your terminal |
| astyle | | A free, fast and small automatic formatter for C, C++, C#, and Java source code. |
| asusctl | | A control daemon, CLI tools, and a collection of crates for interacting with ASUS ROG laptops |
| asusctltray | | Simple tray profile switcher for asusctl |
| asymptote | | A vector graphics language (like metapost) |
| at | | AT and batch delayed command scheduling utility and daemon |
| at-spi2-atk | | A GTK+ module that bridges ATK to D-Bus at-spi |
| at-spi2-core | | Protocol definitions and daemon for D-Bus at-spi |
| at-spi2-core-docs | | Protocol definitions and daemon for D-Bus at-spi (documentation) |
| at51 | | Applications for reverse engineering architecture 8051 firmware |
| atac | | A simple API client (postman like) in your terminal |
| atftp | | Client/server implementation of the TFTP protocol that implements RFCs 1350, 2090, 2347, 2348, and 2349 |
| atinout | | AT commands as input are sent to modem and responses given as output. |
| atkmm | | C++ bindings for ATK |
| atkmm-2.36 | | C++ bindings for ATK |
| atkmm-2.36-docs | | C++ bindings for ATK (documentation) |
| atkmm-docs | | C++ bindings for ATK (documentation) |
| atomicparsley | | Command line program for reading, parsing and setting metadata in MPEG-4 files |
| atomix | | Puzzle game where you move atoms to build a molecule |
| atool | | A script for managing file archives of various types |
| atools | | APKBUILD and aports linter for Alpine Linux |
| atop | | A system and process level monitor |
| atril | | A document viewer for MATE |
| attica | | Qt library that implements the Open Collaboration Services API |
| attica5 | | Qt library that implements the Open Collaboration Services API |
| attr | | Extended attribute support library for ACL support |
| atuin | | Magical shell history |
| aubio | | A tool for extracting annotations from audio signals |
| audacious | | Lightweight, advanced audio player focused on audio quality |
| audacious-plugins | | Plugins for Audacious |
| audacity | | A program that lets you manipulate digital audio waveforms |