Compress Image
Make your images smaller — and see the new size before you save.
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Lower quality means a smaller file. Around 80% usually looks just like the original.
or drag them here
JPG, PNG, WEBP, or HEIC · as many as you like
Your files stay on your device
How to use it
Drop an image here and slide the quality down to make the file smaller. You see the exact new size before you save. Your images stay on your device.
Big photos bounce off email limits and slow down websites. Compressing trims away detail your eyes won’t miss, so a 4 MB phone photo can drop to around 700 KB and look the same.
Drop your images onto the box above. Move the quality slider and watch the “expected size” line — that’s the real size your file will be. Around 75% is a good start for photos. Go much below 50% and you may see blotchy patches in skies.
Your images keep their format: a JPG stays a JPG. PNGs don’t shrink much this way. If your image is also bigger than it needs to be, resizing it usually saves even more.
iPhone HEIC photos work too — no need to convert them first.
FAQ
How much smaller will my image get?
The “expected size” line shows the exact number before you save. A typical phone photo at 75% ends up 60 to 85 percent smaller.
Does it change the width and height?
No, only the quality. Use Resize Image to make it smaller in pixels, which usually saves even more.
Why did my PNG barely shrink?
PNG keeps every detail, so the quality slider doesn’t apply to it. Saving the photo as JPG or WEBP shrinks it far more.
Is my original changed?
No. You get a new, smaller copy. Your original stays exactly as it was.
Can I compress lots of images at once?
Yes. Drop in as many as you like and save them all at the end.
How it worksFor the curious
Compression re-encodes the image at a lower quality setting, discarding the detail the eye is least likely to notice. The “expected size” line comes from a real encode of your first file, done the same way as the final conversion — it is not an estimate.
PNG is lossless, so its encoder ignores the quality setting and the slider is disabled for PNG files. PNGs are still re-encoded, but savings are modest; a photographic PNG shrinks far more as JPG or WEBP.
HEIC output depends on your browser. Safari has a HEIC encoder, so the file stays HEIC there. Chrome and Firefox have none, so the compressed file comes back as JPG. The “saves as” line shows which one you will get before you start.
Everything runs on a canvas in this page. Your original file is never modified; the compressed copy is a new download.