Are my files uploaded?

No. Files are opened and processed by your browser on this device. Nothing is sent to a server, so it works with private documents and even offline once the page has loaded.

How much smaller will my photos get?

Phone photos usually shrink by 60–90% at 1920 px and 75% quality, with no visible difference on screen.

Nightroll

Free Image Compressor & Resizer

Drop images to shrink them; adjust quality and size if you like.

Choose images or drop them hereMany at once is fine. Your images stay on this device.

FormatQuality Largest side

PNG ignores the quality setting. JPG has no transparency: transparent areas become white.

How to make compressed images

Add one or many images.
Choose the quality, a maximum size and, if you like, another format such as WebP.
Download each image or all of them in a zip.

Frequently asked questions

Are my files uploaded?: No. Files are opened and processed by your browser on this device. Nothing is sent to a server, so it works with private documents and even offline once the page has loaded.
How much smaller will my photos get?: Phone photos usually shrink by 60–90% at 1920 px and 75% quality, with no visible difference on screen.