A free tool built so anyone can optimize their images without technical knowledge, without sign-ups, and without their files ever leaving their browser.
ComprimirPro was born out of a very specific frustration: most online image compression tools make you upload your files to unknown servers, ask you to create an account, or limit you to a few files per day. For designers, developers, and content creators who work with dozens of images daily, that's not acceptable.
The solution was obvious: leverage the power of modern browsers to process images directly on the user's device, with no middlemen. The result is ComprimirPro — a tool that reduces image file sizes by up to 90% without any file leaving your computer.
Your images never leave your browser. No servers, no storage, no access to your files.
No waiting queues, no speed limits. Compression happens in real time on your own device.
No paid plans, no file limits, no watermarks. Free forever, funded by non-intrusive advertising.
Supports JPG, PNG and WebP. Convert between formats with one click for maximum compatibility and performance.
We believe a faster web is a better web. Unoptimized images are the number one cause of slow pages — and slow pages frustrate users, hurt SEO, and consume more energy.
Our mission is to make image optimization accessible to everyone: from the blogger who posts once a week to the e-commerce team managing thousands of products. No learning curve, no installations, no cost.
ComprimirPro is built on standard web technologies — the HTML5 Canvas API and the image processing capabilities built into modern browsers. This means:
Have questions, suggestions, or found a bug? Write to us at hi@comprimirpro.com — we read every message.