Compress an image without losing quality

Pick the size you need and get back the sharpest version that fits. Free, and every image is processed on your own device.

Images are compressed to at or under your target, and never leave your device.

Drag & drop your images here, or choose them below

How the quality is protected

A weak compressor picks one low quality setting and hands you whatever comes out. This one works the other way round: it closes in on the highest quality that still fits your target, so you never give away more than the size demands. Shrinking the picture itself is the last resort, used only when no quality setting is enough — because losing pixels is what people actually notice.

Format matters more than you think

  • Photos: use WebP or JPG. Both can trade a sliver of quality for a much smaller file, and WebP usually looks better at the same size.
  • Logos, screenshots, line art: keep PNG. It stores the image exactly, so edges and text stay crisp.
  • A photo saved as PNGis the classic problem. PNG has no quality dial, so there's little to trade away — converting it to JPG or WebP is what actually makes it small.
  • Transparency:JPG can't keep it. If your image has a see-through background, choose WebP or PNG.

Ask for a realistic size

Quality loss is decided by how much room you leave. Give a large photo 500 KB or 1 MB and the difference is genuinely hard to spot. Squeeze the same photo into 20 KB and no tool on earth can hide it. If quality is what matters, start with a generous target and only tighten it if something actually rejects the file.

Compress to a set size

Questions

Can you really compress an image without losing quality?
Not literally — making a photo smaller always throws something away. What you can avoid is a visible drop. Give it a realistic target and the result looks the same as the original at normal viewing size, even though the file is much lighter.
How does it keep the quality up?
It searches for the highest quality setting that still fits your target, rather than picking a low one and hoping. Only if no quality setting is enough does it start reducing the dimensions.
Which format keeps the most quality?
For photos, WebP tends to look better than JPG at the same file size. PNG is lossless, so it can't trade a little quality for a smaller file — which is why a photo saved as PNG is hard to shrink.
My PNG barely got smaller. Why?
PNG has no quality dial to turn. For a photo, switch the output format to JPG or WebP and it will drop dramatically at the same visible quality. Keep PNG for logos, screenshots, and line art.
Does it re-save an image that's already small enough?
No. If your file already meets the target in the format you asked for, you get it back untouched — so it never loses quality for no reason.
Are my images uploaded anywhere?
No. Every image is processed on your own device and never leaves your browser, so your files stay private.