Does compressing an image reduce its quality?
A little, by design, but it is made to be hard to see. JPG, WebP, and AVIF give up a small amount of fine detail to drop the size, and at the recommended setting most photos look the same as the original. A PNG is re-optimized with no change to how it looks at all.
Which image formats can I compress?
You can compress JPG, PNG, WebP, and AVIF, the four main web formats. Each file keeps its own format through the job, so a JPG comes back as a JPG and a PNG as a PNG. The tool never swaps one format for another.
Can I compress several images at once?
Yes. Drop a whole set onto the grid and one press of Compress runs them all together, then hands you a single zip. A single image comes back on its own instead. Up to thirty pictures go in one run, so a folder is one job, not many.
Where do my files go when I compress them?
Not far, and not for long. Your pictures are compressed, then cleared automatically soon after, with a button to remove them at once. Nothing you send is ever used to train a model or passed to anyone else, and each download link stays valid only while that short-lived copy exists.
How much smaller will my image get?
It depends on the photo and its format, but a typical photo drops a lot of weight with no visible change. The result screen shows exactly how much smaller each file became, so you can see the saving before you keep it.
Does compressing change the format of my image?
No. Compressing keeps each file in the format it arrived in, a JPG stays a JPG, a PNG stays a PNG, and the same for WebP and AVIF. If you want a different format, that is a separate convert step, not part of compressing.
Why would I compress an image?
Usually to share or to speed things up. A lighter photo slips under the size limit on email and messaging apps, loads a web page faster, and takes less room in storage. The smaller file does the same job while asking less of every connection.
How do I compress an image online?
You do not need an account, an install, or any settings. Open the page, add your image or images from your device or a drag, and the one button does the rest. Your smaller files arrive ready to save, either singly or bundled, with a count of how much each one shrank.