Squoosh image compressor
Use Squoosh to compress images, compare quality, and convert formats in your browser. Optimize JPG, PNG, and WebP without uploading files.
What is Squoosh?
Squoosh is a browser-based image optimization app created to help designers and developers reduce image size while preserving quality. It provides visual comparison tools and codec controls, making it easier to choose the right balance for web performance. Because processing runs in-browser, you can optimize assets quickly without sending files to a remote server.
Features for image optimization with Squoosh
Practical tools for shrinking files and keeping visual quality.
Inspect quality differences before exporting optimized images.
Convert images to formats such as WebP and AVIF for faster delivery.
Tune dimensions, compression quality, and codec settings to your target.
Compression happens in your browser so image data stays on-device.
See output size changes immediately while adjusting options.
Download optimized output in a few clicks with no signup.
How to optimize images with Squoosh
Use this simple flow to compress and export faster-loading images.
Drag and drop an image file or paste one into the Squoosh workspace.
Pick a format and tune quality, resize, and related codec settings.
Review visual differences and file size, then download the optimized version.
Tips for better compression results
Get cleaner outputs and better performance with small adjustments.
Modern formats usually provide smaller files than legacy JPG or PNG.
Export only the dimensions you need for your layout.
Inspect fine details after compression to avoid visible artifacts.
Great for designers and developers
Squoosh fits many day-to-day optimization tasks.
Prepare lighter assets to improve page speed and Core Web Vitals.
Export previews and product images with controlled quality.
Shrink blog and marketing images before publishing.
Optimize media before uploading to CMS or website builders.
Why use Squoosh for image compression?
A practical workflow for web-ready image files.
Reduce image size to speed up page loading.
Compare output quality directly before downloading.
Open the app and start optimizing immediately.
Processing stays in-browser for local image handling.
Technical details
Key characteristics of this image optimization workflow.
Client-side image encoding and decoding in the browser.
Image compression, resizing, and format conversion.
Optimized assets for websites, apps, and marketing pages.
Frequently Asked Questions
Have questions? We have answers.