Image Compressor
Compress multiple images at once to reduce file size while maintaining quality. Supports JPG, PNG, and WebP. All processing happens in your browser.
How to Use
Click the upload area to select one or more images (you can add more later).
Adjust the quality slider (lower = smaller file, less quality).
Optionally set a max width to resize images.
Choose the output format (JPEG, PNG, or WebP).
Click 'Compress' then download individually or as a ZIP.
Frequently Asked Questions
Which format gives the smallest file size?
WebP generally produces the smallest files, followed by JPEG. PNG is best for images with transparency or sharp edges (logos, screenshots) but produces larger files for photos.
Does compression reduce image quality?
JPEG and WebP use lossy compression — lower quality settings will reduce sharpness. At 70-85% quality, the difference is usually imperceptible. PNG compression is lossless.
Can I download all images at once?
Yes! When you compress multiple images, a 'Download ZIP' button appears that packages all compressed images into a single .zip file for easy downloading.
Is my image uploaded to any server?
No. All compression happens entirely in your browser using the HTML5 Canvas API. Your images never leave your device.