Compress Images for Websites
Optimize website images for faster Core Web Vitals using WebP or AVIF, responsive dimensions, and private batch compression.
Free Batch processing No upload
Drop images hereor paste from your clipboard
JPG, PNG, WebP, AVIF, HEIC & GIF · up to 60 MB eachThree simple steps
From heavy to ready in seconds
Use WebP or AVIF and match display dimensions
Download optimized assets and update your site
Designed for this job
Why this preset works
Images are often the heaviest part of a page. This WebP preset reduces transfer size and caps excessively wide assets while keeping a practical Retina-ready resolution.
Best for Landing pages Blogs and portfolios Core Web Vitals improvements
Built for private work
Your images never visit our server.
Compression happens in this browser tab. There is no upload queue, cloud copy, image history, or account required.
Useful answers
Questions about web performance image optimizer
Should websites use WebP or AVIF?+
Both are strong. AVIF can be smaller but encodes more slowly; WebP is an excellent default with broad support.
Does image compression improve SEO?+
Faster images can improve user experience and Core Web Vitals. Compression is one part of good technical SEO, alongside correct dimensions and lazy loading.
Are website assets uploaded?+
Yes. CompressMint processes images locally in your browser. Your photos are not uploaded to our servers, and refreshing the page clears the working session.