Apps similar to Optimus.io include Dinky, which is free and open source. Other options are ImageOptim, OptiImage, RasterFox and RIOT - Radical Image Optimization Tool. There's no shortage of Image Optimizers like Optimus.io, with more than 50 alternatives for Windows, Mac, Linux, the web and Android.
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.
France
EU
PictureBeaver is a WSH script for batch optimization PNG/JPEG/GIF images using optipng/jpegtran/gifsicle utilities.
WP Smush strips hidden, bulky information from your images, reducing the file size without losing quality. The faster your WordPress site loads, the more Google, Bing, Yahoo and other search engines will like it.
Australia
WinLep is a software that compresses JPG images to LEP saving 22%. WinLep compresses JPEG and decompresses LEP, moreover it can display JPEG and LEP compressed files.
Optimize pictures without quality lossless. With Black Bird Image Optimize - you can reduce the size of your photos several times without quality loss!.
Ukraine
Smaller Images, Faster Sites, Happier Visitors. Comprehensive image optimization that doesn't require a degree in rocket science.
Modernize your WordPress media library with high-performance WebP/AVIF conversion, AI-powered auto-tagging, and zero-load cloud optimization.
Canada
IMAGEmini, a powerful photo resizer and optimizer, allows you to optimize all your photos by 80% ~ 20% comparing to their originals while keeping their original resolution, quality and png, jpg, gif formats.
China
A professional photo size reducer for Mac which will reduce PNG, JPEG and GIF images size with LOSSLESS quality in a batch.
China
Minime is a free and open-source desktop image compressor and format converter for Windows, macOS, and Linux. Built in Rust, it focuses on lossless image optimization while keeping everything private and local to your device.
BelgiumEU
Optimole is your all-in-one image optimization solution for WordPress & beyond, it processes your images in real time and is fully cloud-based (doesn’t strain your server).
