QMPlay2 is a video and audio player. It can play all formats supported by FFmpeg, libmodplug (including J2B and SFX). It also supports Audio CD, raw files, Rayman 2 music and chiptunes. It contains YouTube and MyFreeMP3 browser.

Aegisub is a free, cross-platform open source tool for creating and modifying subtitles. Aegisub makes it quick and easy to time subtitles to audio, and features many powerful tools for styling them, including a built-in real-time video preview.

Aegisub was originally created as a tool to make typesetting, particularly in anime fansubs, a less painful experience. At the time of the start of the project, many other programs that supported the Advanced Substation Alpha format lacked (and in many cases, still lack; development on several competing programs have since been dropped for various reasons completely unrelated to Aegisub) many vital functions, or were too buggy and/or unreliable to be really useful.

Since then, Aegisub has grown into a fully fledged, highly customizable subtitle editor. It features a lot of convenient tools to help you with timing, typesetting, editing and translating subtitles, as well as a powerful scripting environment called Automation (originally mostly intended for creating karaoke effects, Automation can now be used much else, including creating macros and various other convenient tools).

Some highlights of Aegisub:

• Simple and intuitive yet powerful interface for editing subtitles
• Support for many formats and character sets
• Powerful video mode
• Visual typesetting tools
• Intuitive and customizable audio timing mode
• Fully scriptable through the Automation module

amsynth is an analog modelling (a.k.a virtual analog) software synthesizer. It mimics the operation of early analog subtractive synthesizers with classic oscillator waveforms, envelopes, filter, modulation and effects. The aim is to make it easy to create and modify sounds.

Features:

• Dual oscillators (sine / saw / square / noise) with hard sync
• 12/24 dB/oct resonant filter (low-pass / high-pass / band-pass / notch)
• Mono / poly / legato keyboard modes
• Dual ADSR envelope generators (filter & amplitude)
• LFO which can modulate the oscillators, filter, and amplitude
• Distortion and reverb
• Hundreds of presets

There are currently several different ways to run amsynth:

• Stand-alone application using JACK, ALSA or OSS
• DSSI plug-in
• LV2 plug-in
• VST plug-in

Ardour is a multi-channel digital audio workstation, allowing you to record, edit, mix and master audio and MIDI projects.

It is targeted at audio engineers, musicians, soundtrack editors and composers.

Atril is a simple multi-page document viewer. It can display and print PostScript (PS), Encapsulated PostScript (EPS), DJVU, DVI, XPS and Portable Document Format (PDF) files, as well as comic book archive files. When supported by the document, it also allows searching for text, copying text to the clipboard, hypertext navigation and table-of-contents bookmarks.

Atril is a fork of Evince and part of the MATE Desktop Environment. If you would like to know more about MATE and Atril, please visit the project's home page.

Star Traders is a simple game of interstellar trading, where the objective is to create companies, buy and sell shares, borrow and repay money, in order to become the wealthiest player (the winner).

Bluefish is a powerful editor targeted towards programmers and web developers, with many options to write websites, scripts and programming code. Bluefish supports many programming and markup languages and has many features, but is still a very fast and lightweight application.

A selection of the features:

• Well done syntax highlighting which for example supports languages inside languages (e.g. Javascript inside HTML inside PHP)
• All kind of powerful editor features like auto indenting and auto completion for many functions and libraries in many programming languages
• Project support
• Support for remote files over ftp, sftp, webdav, etc
• Powerful search and replace engine
• Customizable integration of external programs such as lint, make, etc
• Snippets plugin to automate often used code
• Code-aware in-line spell checking
• Zencoding or Emmet support
• Bookmarks panel

If you are an occasional coder who is in need for a simple to learn editor, or a heavy coder who dislikes heavy IDE's like eclipse or netbeans, Bluefish is your editor of choice!

GTK Based 3270 terminal emulator

pw3270 is a modern, GTK-based, completely free tn3270 emulator.

Created originally for Banco do Brasil, it's now an official Brazilian Government Public Software project, and is used worldwide.

Cadabra2 is a computer algebra system (CAS) designed specifically for the solution of problems encountered in field theory.

It has been designed specifically for the solution of problems encountered in quantum and classical field theory. It has extensive functionality for tensor computer algebra, tensor polynomial simplification including multi-term symmetries, fermions and anti-commuting variables, Clifford algebras and Fierz transformations, implicit coordinate dependence, multiple index types and many more. The input format is a subset of TeX.

Chocolate Doom is a conservative, historically-accurate Doom source port, which is compatible with the thousands of mods and levels that were made before the Doom source code was released. Unlike other source ports, the goal is to preserve the original look, feel, limitations, and bugs of the original DOS executable.

Full support for single- and multi-player games is provided, for all of the original Doom games, Chex Quest, and Hacx. Unlike the original executable, network play is implemented on the IP network stack, allowing it to function on modern LANs and the Internet.

Chocolate Heretic is a conservative, historically-accurate Heretic source port, which is compatible with mods and levels that were made before the Heretic source code was released. Unlike other source ports, the goal is to preserve the original look, feel, limitations, and bugs of the original DOS executable.

Full support for single- and multi-player games is provided. Unlike the original executable, network play is implemented on the IP network stack, allowing it to function on modern LANs and the Internet.

Chocolate Hexen is a conservative, historically-accurate Hexen source port, which is compatible with mods and levels that were made before the Hexen source code was released. Unlike other source ports, the goal is to preserve the original look, feel, limitations, and bugs of the original DOS executable.

Full support for single- and multi-player games is provided. Unlike the original executable, network play is implemented on the IP network stack, allowing it to function on modern LANs and the Internet.

Chocolate Strife is a conservative, historically-accurate recreation of the Strife engine. It is completely compatible with the original game and mods created with the original engine in mind. Made with a great reverse engineering effort, it has the goal of preserving the original look, feel, limitations, and bugs of the original DOS executable.

Full support for single- and multi-player games is provided. Unlike the original executable, network play is implemented on the IP network stack, allowing it to function on modern LANs and the Internet.

CorsixTH aims to reimplement the game engine of Theme Hospital, and be able to load the original game data files. This means that you will need a purchased copy of Theme Hospital, or a copy of the demo, in order to use CorsixTH. After most of the original engine has been reimplemented in open source code, the project will serve as a base from which extensions and improvements to the original game can be made.

Tilix is a tiling terminal emulator.

It lets you:

• Layout terminals in any fashion by splitting them horizontally or vertically
• Terminals can be re-arranged using drag and drop both within and between windows
• Terminals can be detached into a new window via drag and drop
• Input can be synchronized between terminals so commands typed in one terminal are replicated to the others
• The grouping of terminals can be saved and loaded from disk
• Terminals support custom titles
• Color schemes are stored in files and custom color schemes can be created by simply creating a new file
• Transparent background
• Supports notifications when processes are completed out of view

The application was written using GTK 3 and an effort was made to conform to GNOME Human Interface Guidelines (HIG). As a result, it does use client-side-decorations, though it can be disabled if necessary.

Tilix has been tested with GNOME and with Unity.

Giada is an open source, minimalistic and hardcore music production tool. Designed for DJs, live performers and electronic musicians.

Burn images (as example: .iso or .img) to removable devices like usb disk or sd card

A simple metronome for all musicians that helps to practice several rythms at many speeds

A very fast music player designed extra for large local libraries which also supports online radios and downloading album covers

Features:

• Show all Albums from your library
• Group tracks by Artists
• Manage your Playlists
• Listen to online Radio
• Audio CD support
• Manage your MTP device
• ID3-Tag support

A very fast video player designed extra for large local libraries which also supports downloading of box covers

Features:

• Season playlist
• Subtiles support
• 'TheMovieDB.org' integration for fetching covers

Read the books you love without having to worry about the different format complexities like EPUB, PDF, MOBI, CBR, etc.

Manage your library by tagging and updating metadata on books, to quickly find books using metadata searching and tag based filtering.

This version supports EPUB, MOBI, PRC, PDF, FB2 and comics (CBR and CBZ) formats with support for more formats to follow soon.

Download online videos from various sources including archive.org and much more!

Analyze any display. Input a few simple details and figure out the aspect ratio, DPI, and other details of a particular display. Great for deciding which laptop or external monitor to purchase, and if it would be considered HiDPI.

Handy features:

• Find out if a display is a good choice based on its size and resolution
• Get advice about different densities
• Learn the logical resolution
• Differentiate between laptops and desktop displays
• Stupid simple: all in a cute li'l window

Based my expertise and experience shipping HiDPI hardware and software at System76 and elementary.

Tells you if a display’s density is:

• Very Low DPI,
• Fairly Low DPI,
• Ideal for LoDPI,
• Potentially Problematic,
• Ideal for HiDPI,
• Fairly High for HiDPI, or
• Too High DPI

Special thanks:

• Micah Ilbery for the shiny icons
• Daniel Foré for his apps to use as code examples

elementary uses a set of bright and friendly colors. Easily access the entire official color palette on your local device, see examples of usage, and copy any variation of each color to paste into your own projects.

Handy features:

• Clean and straightforward design
• Click to copy any color to your clipboard
• Supports both hex values and Gtk.CSS color constants

Palette also sports a handy dock-like Mini Mode! Shrink the window down while keeping it always-on-top when you need to constantly reference colors, but don’t want it in your way. Mini Mode keeps all of the functionality with a more streamlined workflow.

A task manager to help you keep track of the tasks that matter most.

Sometimes, you just need a task list to keep you motivated. Agenda provides a way to write down your tasks and tick them off as you complete them. The list is saved automatically, so you can close the list to get it out of the way without losing your place.

Key Features:

• Saves your task list automatically
• See your completed tasks until you choose to delete them
• Autocompletion for previously added tasks
• Undo/Redo with Ctrl-Z and Ctrl-Y
• Quit with the Esc key

Browse system icons by category or search by icon name. See icons at different sizes and get a quick code snippet to use in your apps.

Keep and search your clipboard history and paste old items quickly and easily.

Edit application entries shown in application menu and their properties.

Features include:

• Hide and show applications from the application menu
• Create new application entries
• Change application's display name, icon and more

WhatsApp for Linux is an unofficial WhatsApp desktop application written in C++.

Pick any color from your screen and view it in different formats. Change the picked color or go back to a previously picked color from the history list. Generate a list of different shades from the picked color.

Features

• Pick a Color
• Enter a color in Hex-Format
• Enter colors in different formats
• View colors in Hex, RGB, HSV, HSL, CMYK, XYZ and CIE-Lab format
• Customize which formats appear as well as their order
• Generate a palette of different shades

Wike is a Wikipedia reader for the GNOME Desktop. Provides access to all the content of this online encyclopedia in a native application, with a simpler and distraction-free view of articles.

It supports more than 300 languages and integrates with desktop searches, providing suggestions that make it easier to find any content. Other features are: bookmarks with multiple lists, article table of contents, history, text searches and much more…

Optimize your images with Curtail, a useful image compressor that supports PNG, JPEG, WebP and SVG file types.

It supports both lossless and lossy compression modes with an option to whether keep or not metadata of images.

An implementation of the Japanese logic puzzle "Nonograms" written in Vala, allowing the user to solve computer generated puzzles or design their own.

PDF Arranger is a small application, which helps the user to merge or split pdf documents and rotate, crop and rearrange their pages using an interactive and intuitive graphical interface.

It is a frontend for pikepdf.

Go For It! is a simple and stylish productivity app, featuring a to-do list, merged with a timer that keeps your focus on the current task.

To-do lists are stored in the Todo.txt format. This simplifies synchronization with mobile devices and makes it possible to edit tasks using other front-ends.

If you already use Todo.txt, beware of the fact, that Go For It! automatically archives completed tasks to the done list!

Foliate is a simple and modern GTK eBook viewer.

Features include:

• Two-page view and scrolled view
• Customize font and line-spacing
• Light, sepia, dark, and invert mode
• Reading progress slider with chapter marks
• Bookmarks and annotations
• Find in book
• Quick dictionary lookup

Find any word's definition, and details about it, with this handy dictionary by your side

• Quit anytime with the shortcut Ctrl + Q
• Available in English and Spanish

Make listening to internet radio stations fun again!

Instead of providing you with all the stations you already know, Tuner presents you a new selection of stations from all over the world every time you hit the Shuffle button.

Tuner uses the community-driven station catalog radio-browser.info.

• Discover new stations every day
• Star stations you like and visit their website
• Control Tuner from your volume indicator

This basic image editor can resize, crop, or rotate an image, apply simple filters, insert or censor text, and manipulate a selected portion of the picture (cut/copy/paste/drag/…)

And of course, you can draw! Using tools such as the pencil, the straight line, the curve tool, many shapes, several brushes, and their various colors and options.

Supported file types include PNG, JPEG and BMP.

Highly secure and easy to use OTP client written in C/GTK3 that supports both TOTP and HOTP and has the following features:

• integration with the OS' secret service provider via libsecret
• support both TOTP and HOTP
• support setting custom digits (between 4 and 10 inclusive)
• support setting a custom period (between 10 and 120 seconds inclusive)
• support SHA1, SHA256 and SHA512 algorithms
• support for Steam codes
• import and export encrypted/plain andOTP backup
• import and export encrypted/plain Aegis backup
• import and export plain FreeOTPPlus backup (key URI format only)
• import of Google's migration QR codes
• local database is encrypted using AES256-GCM (PBKDF2 with SHA512 and 100k iterations) and, while decrypted, it's stored in a secure memory area allocated by GCrypt.

Use the power of mind-mapping to make your ideas come to life.

• Quickly create visual mind-maps using the keyboard and automatic layout.
• Choose from many tree layout choices.
• Support for Markdown formatting.
• Support for insertion of Unicode characters.
• Add notes, tasks and images to your nodes.
• Add node-to-node connections with optional text and notes.
• Stylize nodes, links and connections to add more meaning and improve readability.
• Add stickers and node groups to call out and visibly organize information.
• Quick search of node and connection titles and notes, including filtering options.
• Zoom in or enable focus mode to focus on certain ideas or zoom out to see the bigger picture.
• Enter focus mode to better view and understand portions of the map.
• Unlimited undo/redo of any change.
• Automatically saves in the background.
• Colorized node branches.
• Open multiple mindmaps with the use of tabs.
• Built-in and customizable theming.
• Gorgeous animations.
• Import from OPML, FreeMind, Freeplane, PlainText (formatted), Outliner, PlantUML, Portable Minder, filesystem, and XMind formats.
• Export to CSV, FreeMind, Freeplane, JPEG, BMP, SVG, Markdown, Mermaid, OPML, Org-Mode, Outliner, PDF, PNG, PlainText, PlantUML, Portable Minder, filesystem, XMind and yEd formats.
• Printer support.

Clapper is a GNOME media player built using GJS with GTK4 toolkit. The media player is using GStreamer as a media backend and renders everything via OpenGL. Player works natively on both Xorg and Wayland. It also supports hardware acceleration through VA-API on AMD/Intel GPUs, NVDEC on Nvidia and V4L2 on mobile devices.

The media player has an adaptive GUI. When viewing videos in "Windowed Mode", Clapper will use mostly unmodified GTK widgets to match your OS look nicely. When player enters "Fullscreen Mode" all GUI elements will become darker, bigger and semi-transparent for your viewing comfort. It also has a "Floating Mode" which displays only video on top of all other windows for a PiP-like viewing experience. Mobile friendly transitions are also supported.

The easiest way to convert your multimedia files to the most popular formats.

Characteristics:

• Conversion of multiple files at the same time
• Possibility of changing the output folder
• Notification support
• Close the application at any time with Ctrl + Q

Supports the conversion of:

• Video - MP4, MPG, AVI, WMV, FLV, MKV, 3GP, MOV, VOB, OGV, WEBM
• Audio - MP3, WMA, OGG, WAV, AAC, FLAC, AIFF, MMF, M4A
• Images - JPG, BMP, PNG, TIF, GIF, TGA

An audio recording app that helps you recall things talked later.

Features include:

• Recording sounds from both your microphone and system at the same time. This would be useful when you record conversations with chat apps or stream videos on the Internet
• Saving in some commonly used formats. It supports ALAC, FLAC, MP3, Ogg Vorbis, Opus, and WAV
• Timed recording. You can set a delay before recording up to 15 seconds, and the length of recording up to 600 seconds
• Autosaving or always-ask-where-to-save workflow. You can select whether the app saves recordings automatically or you choose a destination each time on saving them
• Saving recording when the app quits. Even if you happen to quit the app while recording, the recording is saved automatically or the file chooser dialog is shown depends on your saving setting

Hourglass is a simple time keeping application that helps you easily set stopwatches, repeating alarms, and timers.

Organize your desktop with panels that hold your things.

• Access files, folders and apps from your desktop
• Drop files, folders, links and .desktop launchers inside panels
• Resize, position and color panels
• Display photos and keep notes on your desktop
• Reveal the desktop with ⌘-D

Open it like any other app after installing. Desktop Folder will launch automatically when you next log in.

Easy Effects is an advanced audio manipulation tool. It includes an equalizer, limiter, compressor and a reverberation tool, just to mention a few. To complement this there is also a built in spectrum analyzer.

Easy Effects is the successor to PulseEffects. Easy Effects only supports PipeWire's audio server. PulseAudio users should instead use PulseEffects.

Because Easy Effects uses the default PipeWire sound server it will work with most, if not all, applications you use. All supported applications are presented in the main window, where each can be enabled individually.

Besides manipulating sound output, Easy Effects is able to apply effects to an input device, such as a microphone. This is, for example, useful in audio recording, but it also works well during voice conversations.

When Easy Effects is launched it will conveniently remember the configuration used in the last session. It is also possible to save all the current settings as profiles.

PulseEffects is an advanced audio manipulation tools. It includes an equalizer, limiter, compressor and a reverberation tool, just to mention a few. To complement this there is also a built in spectrum analyzer.

Because PulseEffects uses the default PulseAudio sound server it will work with most, if not all, applications you use. All supported applications are presented in the main window, where each can be enabled individually.

Besides manipulating sound output, PulseEffects is able to apply effects to an input device, such as a microphone. This is, for example, useful in audio recording, but it also works well during voice conversations.

When PulseEffects is launched it will conveniently remember the configuration used in the last session. It is also possible to save all the current settings as profiles.

xCHM is a viewer for Compiled HTML Help (CHM) files. It can show the contents tree if one is available, print the current page and do the usual history stunts. It allows one to change fonts and search for text in all the pages of the file, or in the page's titles.

Join, create and manage Hamachi networks in a breeze.

Features:

• Searchable, sortable and collapsible network list
• Sidebar for easy access to details and actions
• Desktop notifications
• Fully customizable commands
• Backup and restore your Hamachi configuration folder

Please note: Requires installation of Hamachi on the system in order to use.

Current weather, with information about temperature, pressure, wind speed and wind direction, sunrise and sunset. Know meteorologic predictions to next hours and days. Show awesome maps with all the information. Switch between some maps distributors. Now with System Tray Indicator, showing your location and forecast.

Other features:

• Forecast for next 18 hours
• Forecast for next five days
• Choose your units from metric, imperial or british systems
• Choose your city with popup maps
• Watch awesome maps with weather information

The ColorHug backlight utility uses the ColorHug device to alter the backlight level to compensate for the changing ambient light level.

The ColorHug CCMX loader tool automatically downloads and installs user-submitted device correction matrices onto your Hughski ColorHug display colorimeter.

Selecting a correction matrix maximises the accuracy of the ColorHug but using the default matrix will give most users an acceptable calibration result.

The ColorHug display analysis tool can be used to profile display and GPU devices. It will measure various kinds of latency, e.g. black-to-white and input-lag as well as reporting color information and colorspace gamut volume.

Results can be exported as standalone HTML files and shared.

The ColorHug flash update tool automatically downloads new versions of the firmware on to your Hughski ColorHug display colorimeter. Firmware releases will add features, fix bugs and improve accuracy.

Using command line arguments, this tool can also flash custom flash files to the device.

qView is a Qt image viewer designed with minimalism and usability in mind. It is designed to get out of your way and let you view your image without excess GUI elements, while also being flexible enough for everyday use.

Feature rich WhatsApp web client based on Qt WebEngine.

Key features of Whatsie:

• Light and Dark Themes with automatic switching
• Customized Notifications & Native Notifications
• Global App shortcuts
• BuiltIn download manager
• Mute Audio, Disable Notifications
• App Lock feature
• Built in Spell Checker (with support for 31 Major languages)

Other settings that let you control every aspect of WebApp like:

• Do not disturb mode
• Full view mode, lets you expand the main view to the full width of the window
• Ability to switch between Native & Custom notification
• Configurable notification popup timeout
• Mute all audio from Whatapp
• Minimize to tray on application start
• Enable disable app lock on application start
• Auto-locking after a certain interval of time

RetroArch enables you to run classic games on a wide range of computers and consoles through its slick graphical interface. Settings are also unified so configuration is done once and for all.

It enables you to run classic games on a wide range of computers and consoles through its slick graphical interface. Settings are also unified so configuration is done once and for all. RetroArch has advanced features like shaders, netplay, rewinding, next-frame response times, runahead, and more!

TupiTube Desk is a 2D animation tool for desktop environments focused on usability for children and amateur artists.

0 A.D. is a real-time strategy (RTS) game of ancient warfare. It's a historically-based war/economy game that allows players to relive or rewrite the history of thirteen ancient civilizations, each depicted at their peak of economic growth and military prowess.

The thirteen factions are: Three of the Hellenic States (Athens, Sparta and Macedonia), two of the kingdoms of Alexander the Great's successors (Seleucids and Ptolemaic Egyptians), two Celtic tribes (Britons and Gauls), the Romans, the Persians, the Iberians, the Carthaginians, the Mauryas and the Kushites. Each civilization is complete with substantially unique artwork, technologies and civilization bonuses.

Improve focus and increase your productivity by listening to different sounds

Also can help you to fall asleep in a noisy environment.

Features:

• Save presets
• Add custom sounds
• Auto start in background
• MPRIS integration

Included Sounds in the App:

• Birds
• Boat
• City
• Coffee Shop
• Fireplace
• Pink Noise
• Rain
• Summer Night
• Storm
• Stream
• Train
• Waves
• White Noise
• Wind

Rosegarden is a general-purpose music composition and editing environment that offers a mixture of features inspired by MIDI sequencers, score editors, and DAWs. Rosegarden offers a variety of extensions that work in conjunction with LilyPond to produce beautiful scores that often require little or no manual editing, and it generally does a good job of rendering human MIDI performances as legible notation.

Rosegarden is ideal for the small scale home artist who wishes to use one tool to handle a music project from start to finish. For example, you can record your musical idea with a MIDI keyboard, write out transposing parts for the members of a brass band, and record the band playing these parts all in the same document in the same application. Rosegarden supports a variety of import and export formats, and works well in conjunction with other applications.

Cura creates a seamless integration between hardware, software and materials for the best 3D printing experience around. Cura supports the 3MF, OBJ and STL file formats and is available on Windows, Mac and Linux.

• Novices can start printing right away
• Experts are able to customize 300 settings to achieve the best results
• Optimized profiles for Ultimaker materials
• Supported by a global network of Ultimaker certified service partners
• Print multiple objects at once with different settings for each object
• Cura supports STL, 3MF and OBJ file formats
• Open source and completely free

Peek makes it easy to create short screencasts of a screen area. It was built for the specific use case of recording screen areas, e.g. for easily showing UI features of your own apps or for showing a bug in bug reports. With Peek you simply place the Peek window over the area you want to record and press "Record". Peek is optimized for generating animated GIFs, but you can also directly record to WebM or MP4 if you prefer.

Features:

• Select a screen region to record
• Save recorded video as an optimized animated GIF
• Record directly to WebM or MP4 format
• Simple user interface optimized for the task
• Automatically downscale recorded videos
• Support for HiDPI screens
• Works inside a GNOME Shell Wayland session (using XWayland)

Peek is not a general purpose screencast app with extended features but rather focuses on the single task of creating small, silent screencasts of an area of the screen for creating GIF animations or silent WebM or MP4 videos.

Play audio files

Current features:

• Shows the waveform of the track
• Adjust playback speed
• Easy seek controls

DDraceNetwork is an actively maintained version of DDRace, a Teeworlds modification with a unique cooperative gameplay. Help each other play through custom maps with up to 64 players, compete against the best in international tournaments, design your own maps, or run your own server.

Deepin Image Viewer is a free and open source cross-platform image viewer.

Deluge contains the common features to BitTorrent clients such as Protocol Encryption, DHT, Local Peer Discovery (LSD), Peer Exchange (PEX), UPnP, NAT-PMP, Proxy support, Web seeds, global and per-torrent speed limits. As Deluge heavily utilises the libtorrent library it has a comprehensive list of the features provided.

Deluge has been designed to run as both a normal standalone desktop application and as a client-server. In Thinclient mode a Deluge daemon handles all the BitTorrent activity and is able to run on headless machines with the user-interfaces connecting remotely from any other platform.

Waycheck is a simple graphical application that connects to your Wayland compositor and displays the list of Wayland protocols that it supports, along with the list of protocols that it doesn't.

Gqrx is an open source software defined radio receiver (SDR) powered by the GNU Radio and the Qt graphical toolkit.

Gqrx supports many of the SDR hardware available, including Airspy, Funcube Dongles, rtl-sdr, HackRF and USRP devices.

The Engauge Digitizer tool assists in interactively extracting numbers from images of graphs. Conceptually, it is thus the opposite of a graphing tool that converts data points to graphs. It provides assistance in enhancing the image quality and matching the data points. Engauge Digitizer is used by individuals such as grad students and researchers as well as engineers and employees in large government and commercial organizations for processing single files but also managing databases of thousands of image files.

Features of Engauge Digitizer include:

• Automatic grid line removal
• Automatic point and axis matching
• Automatic curve tracing
• Image processing for separating important details from background information
• A wizard providing an interactive tutorial to explain the basic steps
• Multiple coordinate systems in the same image can be digitized in advanced mode
• Cubic spline interpolation between points gives more accurate curves with fewer points
• Handling of cartesian, polar, linear and logarithmic graphs
• Support for drag-and-drop and copy-and-paste
• Context-sensitive help, user manual and tutorials explaining every feature
• Preview windows to give immediate feedback while modifying settings
• Automated line and point extraction to rapidly digitize data

Quickly analyze, navigate, and extract information from the Internet. Nyxt is fully hackable — all of its source code can be introspected, modified, and tweaked to your exact specification.

Engrampa is an archive manager for the MATE environment. It allows you to create and modify archives, view the contents of an archive, view a file contained in an archive, and extract files from archive.

Engrampa is only a front-end (a graphical interface) to archiving programs like tar and zip. The supported file types are:

• 7-Zip Compressed File (.7z)
• WinAce Compressed File (.ace)
• ALZip Compressed File (.alz)
• AIX Small Indexed Archive (.ar)
• ARJ Compressed Archive (.arj)
• Cabinet File (.cab)
• UNIX CPIO Archive (.cpio)
• Debian Package (.deb, .udeb) [Read-only mode]
• ISO-9660 Disk Image (.iso) [Read-only mode]
• Java Archive (.jar)
• Java Enterprise archive (.ear)
• Java Web Archive (.war)
• LHA Archive (.lzh, .lha)
• WinRAR Compressed Archive (.rar)
• RAR Archived Comic Book (.cbr)
• RPM Package Manager (.rpm) [Read-only mode]
• Tape Archive File uncompressed (.tar) or compressed with: gzip (.tar.gz, .tgz), brotli (.tar.br), bzip (.tar.bz, .tbz), bzip2 (.tar.bz2, .tbz2), compress (.tar.Z, .taz), lrzip (.tar.lrz, .tlrz), lzip (.tar.lz, .tlz), lzop (.tar.lzo, .tzo), 7zip (.tar.7z), xz (.tar.xz), Zstandard (.zst)
• Stuffit Archives (.bin, .sit)
• ZIP Archive (.zip)
• ZIP Archived Comic Book (.cbz)
• ZOO Compressed Archive File (.zoo)
• Single files compressed with gzip (.gz), brotli (.br), bzip (.bz), bzip2 (.bz2), compress (.Z), lrzip (.lrz), lzip (.lz), lzop (.lzo), rzip(.rz), xz (.xz).

Engrampa is a fork of File Roller and part of the MATE Desktop Environment. If you would like to know more about MATE and Engrampa, please visit the project's home page.

Eye of MATE is a simple viewer for browsing images on your computer. Once an image is loaded, you can zoom and rotate the image, and also view subsequent images in the directory the image was loaded from.

PDF Mix Tool is a simple and lightweight application that allows you to perform common editing operations on PDF files.

Base operations it can perform are the following:

• Merge two or more files specifying a page set for each of them
• Rotate pages
• Composite more pages onto a single one (N-up)
• Combinations of all of the above

Besides, it can also mix files alternating their pages, generate booklets, add white pages to a PDF file, delete pages from a PDF file, extract pages from a PDF file, edit the PDF document information.

Exaile is a music player with a simple interface and powerful music management capabilities. Features include automatic fetching of album art, lyrics fetching, streaming internet radio, tabbed playlists, smart playlists with extensive filtering/search capabilities, and much more.

Exaile is written using python and GTK+ and is easily extensible via plugins. There are over 50 plugins distributed with Exaile that include advanced track tagging, last.fm scrobbling, support for portable media players, podcasts, internet radio such as icecast and Soma.FM, ReplayGain, output via a secondary output device (great for DJs!), and much more.

Firewall Configuration provides a graphical tool for administering firewall.

Allows to inspect and set:

• Runtime and permanent firewall configuration
• Predefined zones (levels of trust for network connections)
• Predefined services (port/protocol, netfilter helper module)
• Port forwarding, masquerading, ICMP blocking
• Complex firewall rules a.k.a. Rich Language
• Iptables rules a.k.a. Direct Interface

FocusWriter is a simple, distraction-free word processor. It utilizes a hide-away interface that you access by moving your mouse to the edges of the screen, allowing the program to have a familiar look and feel to it while still getting out of the way so that you can immerse yourself in your work.

FocusWriter allows you to customize your environment by creating themes that control the font, colors, and background image to add ambiance. It also features on-the-fly updating statistics, daily goals, multiple open documents, spell-checking, and much more.

Additionally, when you open the program your current work in progress will automatically load and position you where you last left off so that you can immediately jump back in.

Coq implements a program specification and mathematical higher-level language called <em>Gallina</em> that is based on an expressive formal language called the <em>Calculus of Inductive Constructions</em> that itself combines both a higher-order logic and a richly-typed functional programming language. Through a <em>vernacular</em> language of commands, Coq allows:

• to define functions or predicates, that can be evaluated efficiently;
• to state mathematical theorems and software specifications;
• to interactively develop formal proofs of these theorems;
• to machine-check these proofs by a relatively small certification "kernel";
• to extract certified programs to languages like OCaml, Haskell or Scheme.

As a proof development system, Coq provides interactive proof methods, decision and semi-decision algorithms, and a <em>tactic</em> language for letting the user define its own proof methods. Connection with external computer algebra system or theorem provers is available.

As a platform for the formalization of mathematics or the development of programs, Coq provides support for high-level notations, implicit contents and various other useful kinds of macros.

Geany is a small and lightweight integrated development environment. It was developed to provide a small and fast IDE, which has only a few dependencies from other packages. Another goal was to be as independent as possible from a special Desktop Environment like KDE or GNOME. So it is using only the GTK2 toolkit and therefore you need only the GTK2 runtime libraries to run Geany.