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G'MIC

gmic.eu Image Tools Online toolFree

G’MIC is an open-source image processing framework for 2D, 3D, and 3D+t images, with command-line and other interfaces.

Visit G'MIC 6 alternatives
gmic.eu
G'MIC homepage screenshot

About G'MIC

G'MIC (GREYC's Magic for Image Computing) is a free, open-source image processing framework built to handle 1D, 2D, 3D, and 3D+t image datasets, including standard color photos, volumetric images, and multi-spectral image sequences. It is distributed under CeCILL free software licenses that are compatible with LGPL and GPL terms.

The framework offers multiple user interfaces to fit different workflows: a command-line tool for shell-based processing, plug-ins for popular image editing software including GIMP, Krita, Photoshop, and Affinity Photo, a web-based service for browser use, a portable C++ library for embedding features in third-party applications, and ZArt, a Qt-based tool for real-time webcam and video file processing. It includes more than 1000 pre-built processing algorithms sorted into categories such as Artistic, Colors, and Repair, and supports multi-threaded processing via OpenMP for faster computation on multi-core systems.

Key features

  • Supports 1D, 2D, 3D, and 3D+t image datasets
  • Offers command-line, plug-in, web, and library interfaces
  • Includes over 1000 pre-built image processing algorithms
  • Provides real-time video processing via ZArt
  • Supports multi-threaded processing for faster computation
Best for: It is most beneficial for image processing professionals, developers, and advanced hobbyists who need flexible tools for editing, converting, or automating image and video processing workflows.
Good for
  • Free, open-source with permissive licensing
  • Multiple interfaces for diverse user workflows
  • Over 1000 pre-built algorithms for varied use cases
  • Multi-threaded processing for improved speed
Watch out for
  • Command-line interface requires shell operation knowledge
  • Plug-in support is limited to compatible third-party software

G'MIC at a glance

Website
gmic.eu
Type
Online tool
Pricing
Free
Platforms
Web
Open source
Not stated
Language
English
Last checked
Oct 5, 2026 · Online when checked
Listed
Oct 5, 2026
image toolscommand linecomputing

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G'MIC FAQ

What types of images can G'MIC process?
G'MIC can process 1D scalar signals, 2D color images, 3D volumetric images, and 3D+t multi-spectral image sequences.
Is G'MIC free to use?
Yes, G'MIC is open-source and distributed under free CeCILL licenses compatible with LGPL and GPL terms, with no usage cost.
What interfaces are available for G'MIC?
G'MIC offers a command-line tool, plug-ins for major image editors, a web service, a C++ library, and ZArt for real-time video processing.
How many processing filters does G'MIC include?
The G'MIC Qt plug-in includes over 640 categorized filters, and the full framework has more than 1000 pre-built processing algorithms.
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Listing maintained by Chris McClure and the WebIndexly editors · Updated Oct 6, 2026 · How we rank