Compress Image
Drop in one or many images, set the quality and CometBits shrinks them right in your browser. You see how much space you saved before you download, and nothing is ever uploaded.
Runs in your browser. Your files never leave your device.
- 1Add file
- 2Adjust
- 3Download
No file handy?
How it works
- 01Add one or more images.
- 02Move the quality slider. Lower means a smaller file.
- 03Compress, compare the sizes, and download each file or all of them as a ZIP.
Questions
How much can an image be compressed?
Photos often shrink by 50-80% with little visible change. Screenshots and graphics shrink less. The result panel shows exactly how much you saved.
Why did my PNG turn into a JPG or WebP?
Browsers cannot shrink PNG files much without changing the format. For the biggest saving, we convert to WebP or JPEG. Choose "Keep original format" if you need PNG, but expect a smaller saving.
Can I compress many images at once?
Yes. Add as many as you like and download them together as a ZIP.