Compress Image
Shrink JPG, PNG and WebP files by up to 90% while keeping them sharp. Batch-compress in seconds, right in your browser.
- Processed locally — your files never leave your device
- Free, no sign-up
- No file limits
How to use Compress Image
- 1
Drop your images into the box above, click to browse, or paste from the clipboard.
- 2
Adjust the quality slider, output format and optional max dimension. Results update instantly.
- 3
Download each image individually or grab them all at once as a ZIP file.
Features
- Private by designImages are compressed on your device with Web Workers — nothing is uploaded.
- Batch compressionCompress dozens of images at once and download them in a single ZIP.
- Smart outputIf an image is already optimized, we keep the original instead of making it bigger.
- Resize while compressingCap the longest side to 1920px or less for dramatically smaller web-ready images.
Frequently asked questions
How much can I reduce my image size?
Typical photos shrink by 50–90% at 70–80% quality with no visible difference. Converting to WebP often saves an extra 25–35%.
Are my images uploaded to a server?
No. Compression runs entirely in your browser, so your images never leave your device.
Why didn’t my PNG get smaller?
PNG is lossless, so the quality slider does not apply. Switch the output format to WebP or JPG, or reduce the max dimension, for a much smaller file.
Is there a file size or count limit?
There are no artificial limits. The only constraint is your device’s memory, which comfortably handles images of 50 MP and more.