What is Compress images online — JPG, PNG, WebP, GIF?
TL;DR: Shrink44 is a free in-browser image compressor that shrinks JPG, PNG, WebP, GIF and BMP files up to 90% smaller with quality, target-size and resolution controls — and processes 1000+ images at once.
The Shrink44 image compressor uses the HTML5 Canvas API to re-encode images at your chosen format, quality and resolution. It supports JPG, PNG, WebP, GIF, BMP and TIFF input, with output to JPG, PNG or WebP.
Set a target file size in KB or MB, pick a quality from 10% to 100%, optionally cap the longest side at 4K / Full HD / HD, and Shrink44 will iteratively binary-search the optimal encoding — no guesswork.
Image compression is the single biggest lever for page-load speed, email attachments and storage cost. Smaller images mean better Core Web Vitals, lower bandwidth bills, and faster sharing.