Optimizt is described as 'CLI tool that helps you prepare images during frontend development' and is a Image Optimizer in the Photos & Graphics category. There are more than 50 alternatives to Optimizt for a variety of platforms, including Windows, Mac, Online / Web-based, Linux and Wordpress. The best alternative is ImageMagick, which is both free and Open Source. Other great apps like Optimizt are Caesium Image Compressor (Free, Open Source), RIOT - Radical Image Optimization Tool (Free), FileOptimizer (Free, Open Source) and ImageOptim (Free Personal, Open Source).
With Image Optimizer you can losslessly optimize your PNG, JPEG and GIF files and thus save your bandwidth and your users' time! Kraken recompresses images with blazing speed and strips metadata with image quality intact.
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.
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.
AdvanceCOMP is a collection of recompression utilities for your .ZIP archives, .PNG snapshots, .MNG video clips and .GZ files. It's mainly intended for recompressing your rom, snapshot and clip collection of emulated games.
TruePNG is one of the most advanced PNG optimizers available. It does the most exhaustive checks for reductions, that lets it to optimize further, even if it uses a less efficient compression algorithm than others tools.
optimus.io offers lossless compression of images available with a WordPress plugin and via API. Benefits: - The file size will be reduced but the image quality remains the same - Bulk optimization - Conversion also to WebP available