A collection of free Image Compression Tools for Graphic Designers and Web Developers. This list is updated regularly. Email over the URL, if you wish to be included.

Image Compression

Websites that allow you to compress large images

Website                            Description
TinyPNG Smart PNG and JPEG compression
Optimizilla Online JPEG and PNG optimizer / compressor with settings and archive download
Compressor.io JPEG, PNG, GIF, SVG Compression
Squoosh.app Image compression from Google Chrome Labs
BulkResizePhotos Bulk image resizing, compression & converting that perform all the tasks within the browser (It works offline)
iLoveIMG The fastest free web app for easy image modification
SvgOMG Online SVG optimizer with a lot of settings and possibility to cut and paste svg code directly in it.
CompressJPEG Compress JPEG images with size even greater than 5MB
CompressNow JPEG, GIF, PNG Compression
Promo Image Resizer Free Image and Photo Resizer
Image Optimizer Image Optimizer Free With Quality Options
SVGminify This tool removes superfluous information, thereby reducing the size of your SVG files
JPEG Optimizer Free online tool for resizing and compressing digital photos and images for displaying on the web
Resizing.app Resize Your Images Online
EZGif Animated GIF maker and Image editor including Image optimization and supports WebP conversion
OnlinePngtools Resize png for without losing transparent background.
Verexif Remove meta tags in image in order to reduce image size and increase privacy security
Vecta Nano Uses lossless compression to compress inefficient SVG codes by removing unnecessary data. (Free & Paid)
Watermarkly Private, client-side compression of JPEG images. The app does not send images to a server for processing.
Jpeg.io Convert any major image format into a highly optimized JPEG
CompressImage.io Compress JPG and PNG images. No Limits. Bulk Conversion. Convert to WebP. Works Offline

MIT Licensed