TinyPNG

TinyPNG uses smart lossy compression techniques to reduce the file size of your PNG files. By selectively decreasing the number of colours in the image, fewer bytes are required to store the data.

Free Web

Optimus.io

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

Freemium Web Wordpress

Imagify

Speed up your website by reducing the size of your images without losing quality. FEATURES OPTIMIZE YOUR JPGS, PNGS & GIFS - Imagify compresses the most...

Freemium Web Wordpress

shrink omatic

Shrink O'Matic is an AIR application to easily (batch) resize (shrink) images. It handles JPGs, GIFs and PNGs.

Free Mac OS X Windows

ShortPixel

Speed up your website by compressing the images and PDF files in it. Free WP plugin and web service available.

Freemium Web Wordpress

Kraken Web Optimizer

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...

Freemium Web Chrome Firefox

FILEminimizer Pictures

FILEminimizer Pictures from balesio compresses digital images and photos with file size reductions by up to 98%. For example, a JPEG photo with a size of 5 MB can be...

Free Windows

Lossless Photo Squeezer 1.70

A professional photo size reducer for Mac which will reduce PNG, JPEG and GIF images size with LOSSLESS quality in a batch.

Freemium Mac OS X

Compressor.io

Compressor.io is a powerful online tool for reducing drastically the size of your images and photos whilst maintaining a high quality with almost no difference before and after compression.

Freemium Web

WP Smush

Reduce image file sizes, improve performance and boost your SEO using the free WPMU DEV WordPress Smush API.

Freemium Web Wordpress

IMAGEmini

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...

Commercial Mac OS X

Optimizilla

The ultimate image optimization tool to compress your images in JPEG and PNG formats for sharing and posting on web pages. Upload up to 20 files in JPEG and PNG...

Free Web

Imagify.co

A cloud image processing platform for manipulating your images as you please. You only need one image for all devices. We handle the processing on our server.

Free Web