Compress & convert images
without uploading
Batch compress, resize and convert images to JPEG, WebP, AVIF or PNG — all locally in your browser.
100% Local No upload No limit
778 KB 
11 KB 99% smaller
Frequently asked questions
Are my images uploaded to a server?
No. All processing happens locally in your browser using WebAssembly. Your files never leave your device.
Does compression reduce image quality?
Lossy formats (JPEG, WebP, AVIF) trade some quality for smaller size. You control the quality slider, or use target-size mode to hit a specific size.
What formats are supported?
Input: JPEG, PNG, WebP, GIF, AVIF. Output: JPEG, PNG, WebP, AVIF.