1
CLI
github.com/Lymphatus/caesium-cltAlso covers command line and image tools
Caesium Command Line Tools compresses images with lossy or lossless options.
Alternatives
The Best G'MIC Alternatives in 2026
6 alternatives0 free · 3 open source
Looking for something like G'MIC? Here are 6 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 3 are open source.
G’MIC is an open-source image processing framework for 2D, 3D, and 3D+t images, with command-line and other interfaces.
Top picks at a glance
First suggestionCLICaesium Command Line Tools compresses images with lossy or…Open source optioncbirdThe cbird command-line program retrieves image and video…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | CLI | — | Not stated | Linux, macOS, Windows |
| 2 | cbird | — | Yes | — |
| 3 | PNGQuant | — | Not stated | Linux, macOS, Web |
| 4 | tint | — | Yes | Linux |
| 5 | FaceFusion | — | Not stated | macOS, Windows |
| 6 | Oxipng | — | Yes | Linux, macOS, Windows |
All G'MIC alternatives
2
Also covers command line and image tools · open source
The cbird command-line program retrieves image and video content by visual content, with search and deduplication tools.
3
PNGQuant
pngquant.orgAlso covers image tools · same kind of online tool
Compress PNG files with pngquant, a command-line utility and library that preserves alpha transparency.
4
Also covers image tools · open source
tint recolors images using palettes, with command-line controls for applying a chosen theme palette.
5
FaceFusion
github.com/facefusion/facefusionAlso covers image tools
FaceFusion provides face manipulation tools, with command-line usage instructions and installers for Windows and macOS.
6
Also covers image tools · open source
Oxipng optimizes PNG and APNG files with lossless compression, and offers both a command-line interface and a library.
No alternatives match this filter.
Alternatives to similar tools
CLI15 alternativestint24 alternativesFaceFusion7 alternativesPNGQuant7 alternativesOxipng24 alternativescbird24 alternatives
TopicImage Tools · 174 sites Best-of list8 Best Free Image Compression Tools in 2026Best-of listBest Free Screenshot Tools for Clear Captures and Markup ListingG'MIC details
What is the best alternative to G'MIC?
Based on features, tags and platforms, the closest alternatives to G'MIC are CLI, cbird, and PNGQuant.
Are there open-source alternatives to G'MIC?
Yes: cbird, tint, and Oxipng.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative