Pngcrush is a free and open source optimizer for PNG (Portable Network Graphics) files. It is a command-line tool.
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Category: Graphics
zopflipng – PNG optimisation tool using zopfli
Zopfli Compression Algorithm is a compression library programmed in C to perform very good, but slow, deflate or zlib compression.
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OptiPNG – advanced PNG optimizer
OptiPNG optimizes PNG files, i.e. reduce their size to a minimum, without losing semantic information.
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pngquant – command-line utility and a library for lossy compression of PNG images
pngquant is a command-line utility and a library for lossy compression of PNG images.
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Lepton – image compression tool and file format
Lepton is a tool and file format for losslessly compressing JPEGs by an average of 22%.
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MozJPEG – Mozilla JPEG Encoder Project
MozJPEG improves JPEG compression efficiency achieving higher visual quality and smaller file sizes at the same time.
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Guetzli – perceptual JPEG encoder
Guetzli is a JPEG encoder that aims for excellent compression density at high visual quality.
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GottenGeography – photo geotagging application
GottenGeography is a geotagging application written for the GNOME desktop. It’s written in Python.
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GPS Correlate – correlates digital images with GPS data filling EXIF fields
GPS Correlate matches GPS data with digital camera photos. This is free and open source software written in C.
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KGeoTag – geotagging program
KGeoTag is a standalone geotagging program. It’s free and open source software written in the C++ programming language.
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Geotag – match date/time information from photos
Geotag is software to match date/time information from photos with location information from a GPS unit or from a map.
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GpsPrune – view, edit, and convert coordinate data from GPS systems
GpsPrune is a map-based application for viewing, editing and converting coordinate data from GPS systems.
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gnome-screenshot – small utility for taking screenshots
gnome-screenshot is a utility used in GNOME which takes a picture of the desktop or of a window and saves it into a file.
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CoreShot – simple lightweight screen capture utility
CoreShot is a screen capture utility for C-Suite. This is free and open source software written in the C++ programming language.
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Spectacle – simple application for capturing desktop screenshots
Spectacle is a simple application for capturing desktop screenshots. It’s the default capture program for KDE.
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Shutter – free screenshot tool
Shutter is a feature-rich screenshot application. Take a screenshot of a specific area, window, your whole screen, or even of a website.
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ScreenGrab – screenshot tool
ScreenGrab is an application for creating screenshots. ScreenGrab uses the Qt framework.
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Ksnip – screenshot and annotation tool
Ksnip is a Qt-based cross-platform screenshot tool that provides many annotation features for your screenshots.
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Converter – front-end for ImageMagick
Converter is a simple and easy-to-use application built with libadwaita for converting and manipulating images.
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Conjure – image manipulation tool
Conjure is a tool to transform your images. Resize, crop, rotate, flip images, apply various filters and effects.
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