Halftone gives your images a pixel art-like style and reduce the file size in the process.
Halftone is a simple Libadwaita app for lossy image compression using quantization and dithering techniques.
This is free and open source software.
Key Features
- Three different dither algorithms: You can choose between the classic Floyd-Steinberg algorithm, interesting Riemersma and Bayer (a.k.a ordered) dither known from the Game Boys.
- Live preview: Check out how your image will look like in real time with live preview feature.
- Convert to many formats: In addition to dithering, you can convert your images to different formats to save up some space on disk.
- It’s just that simple. Everything is as simple as possible, so that you could start dithering your images as soon as you’re done installing the app.
Website: github.com/tfuxu/halftone
Support:
Developer: tfuxu
License: GNU General Public License v3.0

Halftone is written in Python. Learn Python with our recommended free books and free tutorials.
Related Software
| GUI Image Compression Tools | |
|---|---|
| XL Converter | Easy-to-use image converter for modern formats |
| Imagine | Software to compress PNG, JPEG and WebP images |
| Caesium | Simple to use image compression tool |
| Curtail | Lossless and lossy compression modes (PNG, JPEG and WEBP) |
| YOGA Image Optimizer | Convert and optimize JPEG, PNG and WebP images |
| OptiImage | Useful image compressor that supports PNG, JPEG, WebP and SVG |
| Image Optimizer | Simple lossless compression |
| Halftone | Apply a pixel art-like style and reduce the file size in the process |
| PicSharp | Cross-platform desktop image compression application |
| Trimage | Cross-platform tool for losslessly optimizing PNG and JPG files |
| E-Mage | Cross-platform tool for losslessly image compression |
| Drop Compress Image | Convert and compress images |
Read our verdict in the software roundup.
Explore our comprehensive directory of recommended free and open source software. Our carefully curated collection spans every major software category.This directory is part of our ongoing series of informative articles for Linux enthusiasts. It features hundreds of detailed reviews, along with open source alternatives to proprietary solutions from major corporations such as Google, Microsoft, Apple, Adobe, IBM, Cisco, Oracle, and Autodesk. You’ll also find interesting projects to try, hardware coverage, free programming books and tutorials, and much more. Discovered a useful open source Linux program that we haven’t covered yet? Let us know by completing this form. |

