MuseScore is cross-platform, multi-lingual, open source music notation software. It features an easy to use WYSIWYG editor with audio score playback for results that look and sound beautiful. It supports unlimited staves with up to four voices each, dynamics, articulations, lyrics, chords, lead sheet notation, import/export of MIDI and MusicXML, export to PDF and WAV, plus online score sharing.
      MuseScore can upload scores directly to the score sharing site musescore.com. Program support is provided on musescore.org.
      Features supported by MuseScore include:
      
        Unlimited score length
        Unlimited number of staves per system
        Up to four independent voices per staff
        Score creation wizard and templates
        Automatic part extraction and transposition
        Repeats, including segnos, codas, and measure repeats
        Dynamics, articulations, and other expression markings, with playback support for most
        Custom text markings
        Lyrics
        Chord symbols
        Jazz notation, including lead sheets, slash notation and a “handwritten” font for text
        Swing and shuffle playback
        Mixer for instrument levels and effects
        Percussion notation
        Early music notation
        Cross-staff beaming
        Import of graphics
        Custom key signatures
        Additive time signatures
        User-defined score styles
      
      Most elements in MuseScore are laid out automatically but can also be positioned manually. The capabilities of MuseScore can be extended via plugins, and the growing repository on musescore.org contains many plugins submitted by users.
      MuseScore includes a set of sounds that reproduce common instruments (as defined by General MIDI) without taking up a lot of disk space or memory, but you can also substitute any SoundFont you prefer for a wider variety of sounds or for more realism.
      MuseScore can import and export MIDI and MusicXML files, and it can also import from Capella and several other programs. MuseScore can export to PDF, PNG, and other graphic formats, to WAV and other audio formats, or to Lilypond for an alternative layout and print option.
    

MuseScore

Create, play and print beautiful sheet music


        digiKam is an advanced open-source digital photo management application that runs on Linux, Windows, and MacOS.
        The application provides a comprehensive set of tools for importing, managing, editing, and sharing photos and raw files.
        You can use digiKam’s import capabilities to easily transfer photos, raw files, and videos directly from your camera
        and external storage devices (SD cards, USB disks, etc.). The application allows you to configure import settings and rules
        that process and organize imported items on-the-fly.
    
      
        digiKam organizes photos, raw files, and videos into albums. But the application also features powerful tagging tools
        that allow you to assign tags, ratings, and labels to photos and raw files. You can then use filtering functionality to quickly
        find items that match specific criteria.
    
      
        In addition to filtering functionality, digiKam features powerful searching capabilities that let you search the photo library
        by a wide range of criteria. You can search photos by tags, labels, rating, data, location, and even specific EXIF, IPTC, or XMP metadata.
        You can also combine several criteria for more advanced searches. digiKam rely on Exiv2 library to handle metadata tag contents
        from files to populate the photo library.
    
      
        digiKam can handle raw files, and the application uses the excellent LibRaw library for decoding raw files. The library is actively
        maintained and regularly updated to include support for the latest camera models.
        digiKam can also manage video files for cataloging purpose, and the application uses the FFmpeg backends to extract
        metadata and play media.
    
      
        The application provides a comprehensive set of editing tools. This includes basic tools for adjusting colors, cropping, and sharpening
        as well as advanced tools for, curves adjustment, panorama stitching, and much more. A special tool based on Lensfun library permit
        to apply lens corrections automatically on images.
    
      
        Extended functionality in digiKam is implemented via a set of tools based of plugins mechanism (named DPlugins for digiKam Plugins).
        Plugins can be written to import and export contents to remote web-services, add new features to edit image, and batch process photo.
    
      Features:
      
        Organization of photos in albums and sub-albums (with tags and comments support)
        Support for Exif, Iptc, Xmp, Makernotes
        SQLite or Mysql powered storage for the album contents and its metadata with advanced search tools
        Support for filtering and sorting albums
        Import from more than 1100 digital camera devices
        Support for more than 900 RAW format pictures
        Light Table to compare photo side by side
        Extended features using extra tools
        Share your photos using HTML or publishing them to remote web services
        Image editor included with advanced tools to fix photo quickly
      
    

digiKam

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 recordSave recorded video as an optimized animated GIFRecord directly to WebM or MP4 formatSimple user interface optimized for the taskAutomatically downscale recorded videosSupport for HiDPI screensWorks 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.

Peek

Simple screen recorder with an easy to use interface


      gThumb is an image viewer, editor, browser and organizer.  It is designed
      to be well integrated with the GNOME 3 desktop.
    
      
      As an image viewer gThumb allows to view common image file formats
      such as BMP, JPEG, GIF (including the animations), PNG, TIFF, TGA and
      RAW images.
      It is also possible to view various metadata types embedded inside an
      image such as EXIF, IPTC and XMP.
    
      
      As an image editor gThumb allows to scale, rotate and crop the images;
      change the saturation, lightness, contrast as well as other color
      transformations.
    
      
      As an image browser gThumb shows the thumbnails of the images saved on
      your disk, allows to perform the common operations of a file manager such
      as copy, move and delete files and folders.
      Furthermore there is a series of image specific tools such as JPEG
      lossless transformations; image resize; format conversion; slideshow;
      setting an image as desktop background and several others.
    
      
      As an image organizer gThumb allows to add comments and other metadata to
      images; organize images in catalogs and catalogs in libraries; search
      for images and save the result as a catalog.
    
    

gThumb Image Viewer

VueScan is an application for scanning documents, photos, film, and slides on Windows, macOS, and Linux. VueScan supports over 6000 scanners from 42 manufacturers - even when there isn't a driver available from the manufacturer.
      The base VueScan app is available for free but will leave a watermark on your scanned images unless you purchase a license from Hamrick Software.
      NOTE: This wrapper is not verified by, affiliated with, or supported by Hamrick Software.
    

VueScan

Home 3D is a free interior design application that helps you place your furniture on a house 2D plan, with a 3D preview.This program is aimed at people who want to design their interior quickly, whether they are moving or they just want to redesign their existing home. Numerous visual guides help you draw the plan of your home and layout furniture. You may draw the walls of your rooms upon the image of an existing plan, and then, drag and drop furniture onto the plan from a catalog organized by categories. Each change in the 2D plan is simultaneously updated in the 3D view, to show you a realistic rendering of your layout.NOTE: This wrapper is not verified by, affiliated with, or supported by eTeks.

Sweet Home 3D

Sweet Home 3D Interior Design Application

LibreCAD is a 2D Computer Aided Design (CAD) application for creating plans and designs on your computer. It can be used to make accurate 2D representations of floorplans, part designs and just about anything that can be represented as a flat 2D plan.

LibreCAD


            Bambu Studio is a cutting-edge, feature-rich slicing software. It contains project-based workflows, systematically
            optimized slicing algorithms, and an easy-to-use graphical interface, bringing users an incredibly smooth
            printing experience.
      
    

Bambu Studio


            Convert between different image filetypes and resize them easily.
        
    

Switcheroo

RawTherapee is a powerful, cross-platform raw photo processing program. It is written mostly in C++ using a GTK+ front-end. It uses a patched version of dcraw for reading raw files, with an in-house solution which adds the highest quality support for certain camera models unsupported by dcraw and enhances the accuracy of certain raw files already supported by dcraw. It is notable for the advanced control it gives the user over the demosaicing and development process.
      RawTherapee is designed for developing raw files from a broad range of digital cameras, as well as HDR DNG files and non-raw image formats (JPEG, TIFF and PNG). The target audience ranges from enthusiast newcomers who wish to broaden their understanding of how digital imaging works to semi-professional photographers. Knowledge in color science is not compulsory, but it is recommended that you are eager to learn and ready to read our documentation (RawPedia) as well as look up basic concepts which lie outside the scope of RawPedia, such as color balance, elsewhere.
      Of course, professionals may use RawTherapee too while enjoying complete freedom, but will probably lack some peripheral features such as Digital Asset Management, printing, uploading, etc. RawTherapee is not aimed at being an inclusive all-in-one program, and the open-source community is sufficiently developed by now to offer all those peripheral features in other specialized software.
    

RawTherapee

An advanced raw photo development program


            Font Manager is intended to provide a way for average users to easily manage
            desktop fonts, without having to resort to command line tools or editing
            configuration files by hand.
        
      
            While designed primarily with the Gnome Desktop Environment in mind,
            it should work well with other Gtk+ desktop environments.
        
      
            Font Manager is NOT a professional-grade font management solution.
        
    

Font Manager

A simple font management application for Gtk+ Desktop Environments

Photopea is a free image editor that includes all the familiar features like layers, filters, magic wand selection, etc. It supports formats from Adobe Photoshop i.e. .PSD, but also .XCF from GIMP, .Sketch from Sketch App, .XD from Adobe XD and .CDR from CorelDRAW software. From 2020 it also supports .FIG files from WinFIG, .RAW and .TGA images. 
      NOTES: This application is wrapper of web application Photopea. Only the Electron wrapper itself is licensed by MIT. The web application is under a proprietary license.
    

Photopea


      Access, organize and share your photos on GNOME. A simple and elegant
      replacement for using a file manager to deal with photos. Enhance, crop
      and edit in a snap. Seamless cloud integration is offered through GNOME
      Online Accounts.
    
      You can:
      
        Automatically find all your pictures
        View recent local and online photos
        Access your Facebook or Flickr pictures
        View photos on TVs, laptops or other DLNA renderers on your local
          network
        Set pictures as your desktop background
        Print photos
        Select favorites
        Easily edit your pictures in the app, or send to a full featured
          editor for more advanced changes
      
    

Photos

Access, organize and share your photos on GNOME

A simple desktop recorder for Linux systems. Built using Rust, GTK+ 3 and ffmpeg. It supports recording audio and video on almost all Linux interfaces with support for Wayland display server on GNOME session. The following formats are currently supported: mkv, avi, mp4, wmv, gif and nut (And only WebM for Wayland's GNOME session). You can stop the recording process easily by right-clicking the icon and choosing "Stop Record". Or middle-clicking the recording icon in the notifications area (but doesn't work on all interfaces). You can choose the audio input source you want from the list. You can also set the default values you want by simply changing them in the interface, and the program will save them for you for the next time you open it. Based on GREEN RECORDER but rewritten in RUST

Blue Recorder

A simple screen recorder for Linux desktop. Supports Wayland & Xorg

LibreSprite lets you create 2D animations for videogames. From sprites, to pixel-art, retro style graphics, and whatever you like about the 8-bit (and 16-bit) era.

LibreSprite

Animated sprite editor and pixel art tool


      Gaphor is a UML, SysML, RAAML, and C4 modeling application. It is
      designed to be easy to use, while still being powerful. Gaphor implements
      a fully-compliant UML 2 data model, so it is much more than a picture
      drawing tool. You can use Gaphor to quickly visualize different aspects
      of a system as well as create complete, highly complex models.
    
      
      Gaphor provides four modeling languages: UML, SysML, RAAML and C4 and
      makes them accessible to beginners.
    
    

Gaphor

XnConvert is multi-platform, it is available for Windows, Mac, and Linux for both 32-bit and 64-bit editions.
      XnConvert is Multilingual, it includes more than 20 different translations.
      It offers powerful features in an easy to use interface providing convenient drag &amp; drop functionality.
      XnConvert is compatible with more than 500 formats and Export to about 70 different file formats.
      Combine and choose between more than 80 different operations including:
      
        Metadata Editing
        Transforms: Rotate, Crop, Resize, ...
        Adjustments: Brightness, Contrast, Saturation, ...
        Filters: Blur, Emboss, Sharpen, ...
        Effects: Masking, Watermark, Vignetting, ...
      
      and seamlessly export to NConvert for a command line usage.
      XnConvert is provided as freeware.
      You are granted the right to use and to make an unlimited number of copies of this software.
      Copyright (C) 1997-2019 Pierre-e Gougelet. All rights reserved.
    

XnConvert

nomacs features semi-transparent widgets that display additional information such as thumbnails, metadata or histogram. It is able to browse images in zip or MS Office files which can be extracted to a directory. Metadata stored with the image can be displayed and you can add notes to images. A thumbnail preview of the current folder is included as well as a file explorer panel which allows switching between folders. Within a directory you can apply a file filter, so that only images are displayed whose filenames have a certain string or match a regular expression. Activating the cache allows for instantly switching between images.

nomacs - Image Lounge

nomacs is a free, open source image viewer

Ever wanted to know the value of that color on your screen? Color Picker enables you to pick the color from any pixel on your screen. It also offers a palette, so that you can easily mix and match a couple of colors together.When you have found the perfect combination of colors, naturally you want to save them. Color Picker allows you to conveniently save and retrieve colors.Color Picker is a color selection dialog written in GTK 3. It is much alike Gcolor2, but uses the newer GTK version and other modernisations to better integrate into your modern desktop.

Color Picker

Choose colors from the picker or the screen


      Unleash your creativity with Pixelorama, a powerful and accessible open-source pixel art multitool. Whether you want to create sprites, tiles, animations, or just express yourself in the language of pixel art, this software will realize your pixel-perfect dreams with a vast toolbox of features.
    
    

Pixelorama

This is software for producing a 2D animation.It is based on the software "Toonz", which was developed by Digital Video S.p.A. in Italy, customized by Studio Ghibli, and has been used for creating its works for many years. Dwango launched the OpenToonz project in cooperation with Digital Video and Studio Ghibli.

OpenToonz

ColorWall is a powerful desktop wallpaper store, manager, downloader, and application that provides users with a vast selection of high-quality wallpapers to choose from.
      Key features of ColorWall:
      
        Comprehensive search: search using Colors, Tags, Categories, Resolution, Popularity, Views...
        Large collection of Wallpapers: boasts the world's largest collection of online 4k, 8k and Ultra HD wallpapers
        Cross-platform support/Multiple backend support: windows, cinnamon, deepin, lxqt, mate, pantheon, kde-plasma-5, unity, xfce4, and even FEH and WAL
        Highly optimized browsing experience: infinity-scrollable wallpaper browsing viewport
        Built-in Image viewer: preview wallpapers before downloading them
        Multithreaded download manager: download multiple wallpapers simultaneously
        Smart multiple wallpaper selection mode: select multiple wallpapers you want to download at once
        Smart Image metadata extraction: extracts Dominant color, Subject/Theme of wallpaper
        Content filtering: including an powerful age filter,to filter wallpaper search
      
    

ColorWall

The Ultimate Desktop Wallpaper Application

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.
    

Curtail

Easy to use photo editing software.Fix and modify your jpeg photos to look even greater. Supports several other imageformats also.Change exposure, contrast and color. Turn color photos in to black and white images with control how color is handled. Rotate, crop, straighten and resize photos.Copyright (C) 2022-2024 Jari AholaLisensed under GNU GPLv3. Full source code available at https://github.com/aphototool/A-Photo-Tool-Libre

A Photo Tool (Libre)


			Calibrate and characterize your display devices using one of many
			supported measurement instruments, with support for multi-display
			setups and a variety of available options for advanced users, such as
			verification and reporting functionality to evaluate ICC profiles and
			display devices, creating video 3D LUTs, as well as optional CIECAM02
			gamut mapping to take into account varying viewing conditions.
		
    

DisplayCAL

Display calibration and profiling with a focus on accuracy and versatility

Boxy SVG project goal is to create the best tool for editing SVG files. For beginners as well as for
professional designers and developers. On any device and operating system.
      
        === Core features: ===
      
      
        Clean and intuitive UI heavily inspired by Inkscape, Sketch and Adobe Illustrator
        Extensive support for on-canvas editing of object geometry, transform, paint and other properties
        Save to SVG and SVGZ formats, export to PNG, JPG, WebP, PDF and HTML5
        Integration with Pixabay and other libraries with millions of free stock photos and vector assets
        Google Fonts integration with hundreds of free fonts
        Configurable keyboard shortcuts for over 100 commands
        Manual guides, smart guides and grid
        Path operations (unite, intersect, subtract, exclude, close, reverse, etc.)
        Arrangement operations (align to, rotate, flip, order, group, etc.)
      
      
        === For web developers: ===
      
      
        Chromium-based rendering engine
        SVG and CSS code inspector similar to Chrome Dev Tools
        Clean SVG output that preserves IDs, classes, titles and other metadata
        SVG sprites editing support
      
      This package is officially published, maintained and supported by Boxy SVG developer.
      
      
      
      
      
      
    

Boxy SVG

Letterpress converts your images into a picture made up of ASCII characters. You can save the output to a file, copy it, and even change its resolution! High-res output can still be viewed comfortably by lowering the zoom factor.

Letterpress

Have you ever wanted to edit your own photos like the pros and create beautiful images you can share with those you love? Well, now you can do that in just a few steps! We have a variety of attractive, artful filters so you can customize your photos and create one-of-a-kind works of art from your everyday life. With this handy app, you can post your creations directly to Facebook, so everyone can see your awesome pictures!

Photo Editor

Easily edit and share all of your favorite photos

OCRFeeder is a document layout analysis and optical character recognition system.Given the images it will automatically outline its contents, distinguish between what's graphics and text and perform OCR over the latter. It generates multiple formats being its main one ODT.It features a complete GTK graphical user interface that allows the users to correct any unrecognized characters, defined or correct bounding boxes, set paragraph styles, clean the input images, import PDFs, save and load the project, export everything to multiple formats, etc.

OCRFeeder

OpenSCAD is a software for creating solid 3D CAD models. Unlike most free software for creating 3D models (such as Blender) it does not focus on the artistic aspects of 3D modelling but instead on the CAD aspects. Thus it might be the application you are looking for when you are planning to create 3D models of machine parts but pretty sure is not what you are looking for when you are more interested in creating computer-animated movies.
      OpenSCAD is not an interactive modeller. Instead it is something like a 3D-compiler that reads in a script file that describes the object and renders the 3D model from this script file. This gives you (the designer) full control over the modelling process and enables you to easily change any step in the modelling process or make designs that are defined by configurable parameters.
      OpenSCAD provides two main modelling techniques: First there is constructive solid geometry (aka CSG) and second there is extrusion of 2D outlines. As data exchange format for this 2D outlines Autocad DXF files are used. In addition to 2D paths for extrusion it is also possible to read design parameters from DXF files. Besides DXF files OpenSCAD can read and create 3D models in the STL and OFF file formats.
    

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