E-Mage is a cross-platform tool for losslessly image compression.
Key Features
- JPG: jpegoptim, jpegtran and mozjpeg.
- PNG: advpng, optipng, pngcrush, pngout and zopfli.
- SVG: svgo.
- GIF: giflossy and gifsicle.
Website: emage.js.org
Support: GitHub Code Repository
Developer: Douglas Nassif Roma Junior
License: MIT License

E-Mage is written in JavaScript. Learn JavaScript 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. |


Would really appreciate Flatpak support (with its “verified app” badge)
You’ll need to ask the developer.