Compress Image
Shrink photos and graphics to the quality you choose, so they're light enough for email, forms and web pages.
This tool runs entirely in your browser; what you enter is never sent to our servers.
How to use it
- Drag in your images or use “Choose file”. You can add several at once.
- Set the quality. Leaving the output format on “Automatic” works best for most images.
- Press “Compress”, check the savings, and save each file with “Download”.
How the compression works
Your image is opened in the browser and re-encoded at the quality you pick. JPEG and WebP get smaller by discarding detail the eye barely notices. PNG is lossless, so quality doesn't apply to it, which is why Automatic converts PNG to WebP, a format that also keeps transparency, when your browser can save WebP. Browsers that can't, such as Safari, leave it as PNG. Saving a phone photo at 70–80% before attaching it to an email, for instance, usually makes the file much smaller with little visible change on screen. With Automatic or the same format, if the result wouldn't be smaller you get the original back rather than a file that grew. If you explicitly pick a different format, you get that conversion, and we tell you when the file grew.