Free Online Image Compressor

Compress your images without losing quality. Our tool runs entirely in your browser — your files are never uploaded to any server. Adjust the quality slider to find the perfect balance between file size and visual quality.

How to compress an image

1. Drop your image into the upload zone or click to browse.
2. Adjust the quality slider — lower quality means smaller file size.
3. Choose your output format (JPEG, PNG, WebP, or AVIF).
4. Click Compress and download your optimized image.

Supported formats

We support PNG, JPEG, WebP, and AVIF files. Files up to 50MB are accepted. For best results with photographs, use JPEG or WebP at 70-85% quality. For images with transparency, use PNG or WebP.

Why compress images?

Large images slow down your website, hurting SEO and user experience. Compressing images reduces file size while maintaining visual quality, leading to faster page loads and better Core Web Vitals scores.