Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation).Features include a large library of customizable functions, unit calculations and conversion, physical constants, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation, interval arithmetic, plotting, and a user-friendly interface.

Qalculate! (Qt UI)

Fuse is an emulator of the Sinclair ZX Spectrum home computer. It supports all of the original models and some clones, with quite faithful emulation of the display and sound.Fuse can load most formats of snapshots, tapes and floppy disks and it can emulate many peripherals such as joysticks, printers, storage devices and network interfaces, among others.

Fuse

Subtitle Composer is an open source text-based subtitle editor that supports basic and advanced editing operations.FeaturesOpen/Save Text Subtitle Formats - SubRip/SRT, MicroDVD, SSA/ASS, MPlayer, TMPlayer and YouTube captionsOpen/OCR Graphics Subtitle Formats - VobSub (.idx/.sub/.rar), BluRay/PGS (*.sup), formats supported by ffmpeg (DVD/Vob, DVB, XSUB, HDMV-PGS)Demux Graphics/Text Subtitle Stream from video file - SRT, SSA/ASS, MOV text, MicroDVD, DVD/Vob, DVB, XSUB, HDMV-PGSSpeech recognition from audio/video file using PocketSphinxSmart language/text encoding** detectionLive preview of subtitles in integrated video player w/ audio stream selectionPreview/editing of subtitles on graphical audio waveform w/ audio stream selectionSync by dragging several anchors/graftpoints and stretching timelineTime shifting and scaling, lines duration re-calculation, framerate conversion, etc.Joining and splitting of subtitle filesSide by side subtitle translationsText styles (italic, bold, underline, stroke, color)Spell checkingDetection of timing errors in subtitlesScripting (JavaScript, Python, Ruby and other languages supported by Kross).

Subtitle Composer

Video subtitle editor that supports basic and advanced editing operations

Apache JMeter is a desktop application to design and run load test and measurements.Folders used:Open and save JMX files: the user Documents folder (use Flatseal to allow acces to other folders)Plugins directory: ~/.var/app/org.apache.jmeter/data/jmeter/lib/ext/User configuration: ~/.var/app/org.apache.jmeter/config/jmeter/user.propertiesApplication log: ~/.var/app/org.apache.jmeter/.local/state/jmeter/jmeter.log

Apache JMeter

Load testing and performance measurement application

Protect your eyes from eye strain using this simple and beautiful, yet extensible break reminderFeatures:Remind you to take breaks with exercises to reduce RSI, Disable keyboard during breaks, Notification before and after breaks, Smart pause if system is idle, Multi-screen support, Customizable user interface, RPC API to control externally, Command-line arguments to control the running instance, Customizable using plug-ins

Safe Eyes

A Free and Open Source tool for Linux users to reduce and prevent repetitive strain injury (RSI).

Power Statistics can show historical and current battery information and programs waking up that use power.You probably only need to install this application if you are having problems with your laptop battery, or are trying to work out what programs are using significant amounts of power.

GNOME Power Statistics

Okteta is a simple editor for the raw data of files.Features:Values and characters shown either in two columns (the traditional display in hex editors) or in rows with the value on top of the characterEditing and navigating similar to a text editorCustomizable data views, with loadable and storable profilesTools dockable on all sides or floatingNumerical encodings: Hexadecimal, Decimal, Octal, BinaryCharacter encodings: All 8-bit encodings as supplied by Qt, EBCDICFast data rendering on screenMultiple open filesUndo/redo supportStructures tool for analyzing and editing based on user-creatable structure definitionsAnd more...

Okteta

Zim brings the power of a wiki to your desktop, providing a neat and structured way to take notes and record your thoughts. Each page in Zim is automatically saved as text file with wiki markup, including the ability to link pages and to add other files as attachments. Pages in Zim are also displayed in the sidebar in a hierarchical tree style layout to help organize your notes better.Various plugins provide additional functionality, like a task list manager, an equation editor, a tray icon, and support for version control.Zim can be used to:Keep an archive of notesKeep a daily or weekly journalTake notes during meetings or lecturesOrganize task listsDraft blog entries and emailsDo brainstorming

Index allows you to navigate your computer and preview multimedia files.

Index

Pure Maps is an application to display vector and raster maps, places, routes, and provide navigation instructions with a flexible selection of data and service providers.Depending on the used service provider, Pure Maps can rely fully either on online services or, together with OSM Scout Server, provide fully offline maps

Pure Maps

If PDF is electronic paper, then PDFtk is an electronic staple-remover, hole-punch, binder, secret-decoder-ring, and X-Ray-glasses. PDFtk is a simple tool for doing everyday things with PDF documents, and PDF Chain is a nice frontend application to it.Features:Merge PDF Documents or Collate PDF Page ScansSplit PDF Pages into a New DocumentRotate PDF Documents or PagesDecrypt Input as Necessary (Password Required)Fill PDF Forms with X/FDF Data and/or Flatten FormsGenerate FDF Data Stencils from PDF FormsApply a Background Watermark or a Foreground StampReport PDF Metrics, Bookmarks and MetadataAdd/Update PDF Metrics, Bookmarks or MetadataAttach Files to PDF Pages or the PDF DocumentUnpack PDF AttachmentsBurst a PDF Document into Single PagesUncompress and Re-Compress Page StreamsRepair Corrupted PDF (where possible)---------- DISCLAIMER ----------Latest version of this software is very old and so it may contain bugs, so to be on the safe side make sure to NOT open any untrusted pdf files with it. For this same reason we have limited this application to only save files to standard locations: "Downloads", "Documents" and "Pictures". You can also save to external devices (like USB pendrive).

PDF Chain

PDF Chain is a graphical user interface for the PDF Toolkit (PDFtk)

Carla is a fully-featured audio plugin host, with support for many audio drivers and plugin formats.

Carla

i2pd (I2P Daemon) is a full-featured C++ implementation of I2P client.I2P (Invisible Internet Protocol) is a universal anonymous network layer. All communications over I2P are anonymous and end-to-end encrypted, participants don't reveal their real IP addresses.I2P allows people from all around the world to communicate and share information without restrictions.Features:Distributed anonymous networking frameworkEnd-to-end encrypted communicationsSmall footprint, simple dependencies, fast performanceRich set of APIs for developers of secure applications

i2pd

Helio is an attempt to rethink a music sequencer to create a tool that feels right. It provides a lightweight UI to help you get into the zone and focus on your ideas.

Helio Workstation

Helio Project libre music composition software

CoreShot a simple app that can capture images of the screen. It can capture the whole screen, a specified region, an individual window, or only part of a window.

CoreShot

A simple lightweight screen capture utility for X11

Quadrapassel is a derivative of a classic Russian falling-block game. Reposition and rotate the blocks as they fall, and attempt to fit them together. When you form a complete horizontal row of blocks, the row will disappear and you score points. The game is over when the blocks get stacked too high. As your score gets higher, you level up and the blocks fall faster.If you’re looking for a challenge, Quadrapassel allows you to increase the initial speed of the blocks, or begin the game with partial blocks on some of the rows. Or, instead of allowing the blocks to fall randomly, it can select blocks that will be hard for you to place.

Quadrapassel

Dynamic Wallpaper Editor is a simple utility to create or edit dynamic wallpapers for the GNOME desktop.The duration of each picture and each transition can be set separately or globally. The total duration can be 24 hours to do a wallpaper fitting the daylight.

Dynamic Wallpaper Editor

Create or edit XML dynamic wallpapers ("background slideshows") for the GNOME desktop

jdMinecraftLauncher is a Minecraft launcher which Look and Feel is close to the the good old official LauncherFeatures:All Minecraft versions are supportedOffline mode is aviable after your first loginOne click install of Forge and FabricFeralInteractive GameMode is supportedCreate Shortcuts in the Menu and on the Desktop to directly launch MinecraftFor Developers commandline argumnets and a D-Bus Interface are providedYou need a Microsoft Account which owns Minecraft to use this LauncherThis Launcher is completly fanmade and not supported by Mojang/Microsoft

jdMinecraftLauncher

Generate projects avatars for your Matrix rooms and git forges from a symbolic icon.

Emblem

Krename is a very powerful batch file renamer which can rename a list of files based on a set of expressions. It can copy/move the files to another directory or simply rename the input files. Krename supports many conversion operations.

Krename

Glade is a RAD tool to enable quick &amp; easy development of user interfaces for the GTK+ 3 toolkit and the GNOME desktop environment.The user interfaces designed in Glade are saved as XML and these can be loaded by applications dynamically as needed by using GtkBuilder or used directly to define a new GtkWidget derived object class using GTK+ new template feature.By using GtkBuilder, Glade XML files can be used in numerous programming languages including C, C++, C#, Vala, Java, Perl, Python, and others.

Glade

Create or open user interface designs for GTK+ applications

Create the shortcut to portable apps like raw executable files, AppImage files, etc. into the app launcher of your desktop environment.Other features include:Edit or delete created app entries without opening the file managerAutomatically add execution permission to the file you selectSyntax error detectionAutomatically save everything―your data in editing, last open view, and preferences

Pin It!

Create the shortcut to your favorite portable apps into your app launcher

Converter NOW is an effective unit and currencies converter✔️ Simplify the tedious conversion process between units of measurement in a few clicks🚀 It is  fast and immediate: just start typing and immediately you have the real-time conversion with all the other units of measurement🖌️ It is customizable: the units can be reorganized according to your priorities and your use🔢 It integrates a calculator that let you do the calculations in every page💰 Currency exchange rates updated daily🎨 Dynamic theming based on your device settings⚫⚪ Choose your favourite theme: dark and white theme📱🖥️ Multiplatform: available for Android, Web, Linux and Windows💯 It is free, no ads, no data collection, no permissions (just Internet to update currency conversions) and first of all it is open source!Converter NOW can convert 200+ units of mesurement and 30+ currencies 🎉🎉Here are some of the physical quantity that Converter NOW is able to convert:Currencies: Dollars, Euro, Pound, Rupee, Yen, etc.Length: meters, inches, miles, yards, light years, etc.Area: square meters, hectares, acres, etc.Volume: cubic meters, liters, gallons, pints, spoons, etc.Time: seconds, hours, days, years, weeks, millennia, etc.Temperature: Centigrade, Fahreneit, Kelvin, etc.Speed: meters per second, kilometers per hour, knots, etc.Mass: grams, pounds, tons, atomic mass units, etc.Force: Newton, dyne, pound-force, poundal, etcPressure: pascal, bar, atomsfere, psi, etc.Energy: Joule, calories, kilowatt hours, etc.Power: Watt, kilowatt, horse power, etc.Fuel consumption: Miles per Gallon, Kilometres per liter, etc.Numeral systems: decimal, binary, hexadecimal etc.Torque: Newton metre, pound-force foot, poundal metre, etc.Digital data: Nibble, bit, byte, kibibit, kibibyte, etc.Shoes size: UK, India, Europe, USA, Japan, etc.Angles: degree, radians, minutes, etc.SI prefix: kilo, mega, giga, tera, milli, micro, nano, etc.

Converter NOW: Unit Converter

A simple, immediate and fast unit converter!

The OWASP Zed Attack Proxy (ZAP) is one of the world’s most popular free security tools and is actively maintained by a dedicated international team of volunteers. It can help you automatically find security vulnerabilities in your web applications while you are developing and testing your applications. Its also a great tool for experienced pentesters to use for manual security testing.

The OWASP Zed Attack Proxy (ZAP) is a popular free security tool.

Ludusavi is a tool for backing up your PC video game save data, written in Rust. It is cross-platform and supports multiple game stores.Features:Ability to back up data from more than 10,000 games plus your own custom entries.Backup and restore for Steam as well as other game libraries.Preview of the backup/restore before actually performing it.Both a graphical interface and command line interface for scripting. (NOTE: CLI is named "com.github.mtkennerly.ludusavi" for Flatpak)Tab completion is available for Bash, Fish, Zsh, PowerShell, and Elvish.Support for saves that are stored as files and in the Windows registry, Proton saves with Steam, and Steam screenshots.

ludusavi

Ludusavi is a tool for backing up your PC video game save data.

Nook used to be a browser extension, however with the changes bought in Chrome Manifest v3, it was decided that the browser extension was too difficult to maintain, and Nook was repurposed into a desktop app.Features over the browser version include:New slick interfaceNew rain sounds (in-game, no-thunder)Town tunes (and customization)Multilingual support (English, Spanish, French, German, and Chinese)Offline modePopulation growing snowy and cherry blossom themesNew horizons rainy and snowy themesPocket camp themesRandom modeAll K.K. Slider songs

Nook Desktop

Nook is an application that plays Animal Crossing hourly themes on the hour.

A 3D rally simulation with a great physics engine for drifting, over 100 maps, different terrain materials like dirt, asphalt, sand, ice etc. and various weather, light and fog conditions give this rally simulation the edge over many other free games. You need to make it through the maps in often tight time limits and can further improve by beating the recorded high scores. All attached single races must be finished in time in order to win an event, unlocking additional events and cars. Most maps are equipped with spoken co-driver notes and co-driver icons.

Trigger Rally

Fast-paced single-player rally racing game

Gramps is a genealogy program that is both intuitive for hobbyists and feature-complete for professional genealogists.It gives you the ability to record the many details of the life of an individual as well as the complex relationships between various people, places and events.All of your research is kept organized, searchable and as precise as you need it to be.

Gramps

Manage genealogical information, perform genealogical research and analysis

86Box is a hypervisor and IBM PC system emulator that specializes in running old operating systems and software designed for IBM PC systems and compatibles from 1981 through fairly recent system designs based on the PCI bus.

It supports various models of PCs, graphics and sound cards, and CPUs.To use 86Box you will need to dump BIOS ROMs for each machine you want to emulate.

86Box

gLabels is a program for creating labels and business cards. It is designed to work with various laser/ink-jet peel-off label and business card sheets that you'll find at most office supply stores.gLabels can be used to design address labels, name tags, price tags, cd/dvd labels, or just about anything else that is organized in a regular pattern on a sheet of paper. Labels (or cards) can contain text, images, lines, shapes, and barcodes. gLabels also includes a document-merge feature which lets you print a unique label for each record from an external data source, such as a CSV file or an Evolution address book.

gLabels

Create labels, business cards and media covers

Popular apps