optimus.io offers lossless compression of images available with a WordPress plugin and via API.
Cost / License
- Freemium
- Proprietary
Platforms
- Online
- Wordpress




Oxipng is described as 'Multithreaded lossless PNG compression optimizer in Rust. It can be used via a command-line interface or as a library in other Rust programs' and is a Image Optimizer in the photos & graphics category. There are more than 100 alternatives to Oxipng for a variety of platforms, including Windows, Mac, Web-based, Linux and Wordpress apps. The best Oxipng alternative is Caesium Image Compressor, which is both free and Open Source. Other great apps like Oxipng are XnConvert, Dinky, ImageOptim and TinyFast.
optimus.io offers lossless compression of images available with a WordPress plugin and via API.




The ultimate image optimization tool to compress your images in JPEG and PNG formats for sharing and posting on web pages.

Compress or convert images on the web with offline support. Images are not uploaded on server and processed on client with webassembly. Support for formats like JPEG, PNG, WebP, AVIF and JXL.

ETK Image Compressor Pro is a fast, lightweight Windows app that drastically reduces image file sizes while keeping excellent visual quality. Supports adjustable quality for WebP,PNG, TGA, EXR, JPEG, batch compression, 8K images, and works fully offline.




jStrip is a free tool to reduce the file size of JPEG images without sacrificing image quality. High-traffic websites with many JPEG images can benefit from decreased bandwidth costs. Less hard disk space will be used by image collectors.


PhotoResize is a simple tool for very fast batch resizing of photos and pictures in JPEG format. Beyond simple options however, Picture Resizer also contains support for seam-carving (changing size while preserving content), image sharpening, metadata, and other options.

An image converter batch-processing multiple files. JPEG lossless transformations are implemented.




Free EXIF Eraser is a free lightweight software that allows you to easily and effectively delete entire EXIF/IPTC/XMP information from image files.


A powerful photo resizer and optimizer for Mac, allows you to optimize all your photos by 80% ~ 20% comparing to their originals while keeping their original resolution, quality.



Crunch - Insane(ly slow but wicked good) PNG image optimization. It combines selective bit depth, color type, and color palette reduction with zopfli DEFLATE compression algorithm encoding using embedded versions of the pngquant and zopflipng PNG optimization tools.





PictureBeaver is a WSH script for batch optimization PNG/JPEG/GIF images using optipng/jpegtran/gifsicle utilities.
