Nothing is uploaded. It all runs in your browser.
Pick one or several. JPEG, PNG, WebP and most other formats work.
70 to 85 is the sweet spot for photos.
Wider images are scaled down. Smaller ones are never enlarged.
Add images to compress them.
Compressed copies drop hidden photo data (EXIF) such as camera details and location, which is often a plus for privacy. Your originals are never changed.
Free Image Compressor by Hiyaly