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Compress image to 100 KB

Drop a photo and get a file at or under 100 KB, at the best quality that fits. Add exact pixels if the form asks for them.

Must be underKB or MB
Exact pixel size and other options
or drop images here to get them under 100 KBJPG, PNG, WebP, HEIC and more. Nothing is uploaded. You can also paste a screenshot.

How it works

  1. The limit is set to 100 KB; change it if your form says otherwise, or add a minimum.
  2. Open the options to add an exact pixel size when the rule gives one.
  3. Drop the images. The ruler under each shows where the result landed against the limit.
  4. Download one, or all as a ZIP.

Who needs 100 KB

One hundred kilobytes is the limit you meet on job boards, government service portals, school systems and many email forms. It is also a sensible budget for a product thumbnail on a web page. At this size a good phone photo keeps almost all of its visible detail once it is resized to around 1000 pixels.

  • Job portal and CV photos
  • Government e-service uploads
  • Website thumbnails and blog images

What to expect at 100 KB

For a photo already sized for the web, the tool usually only has to nudge the quality. For a straight-from-camera file it will reduce the pixel size as well; the result shows the final dimensions so you can check they are still enough.

Other limits

10 KB, 20 KB, 50 KB, 200 KB, 500 KB, 1 MB

Questions

Does 100 KB mean 100,000 bytes or 102,400 bytes?

The tool uses 1 KB = 1024 bytes, so 100 KB is 102,400 bytes. Nearly every portal measures the same way, and a file just under 102,400 bytes also passes a 100,000-byte check in practice because the tool stops slightly below the limit.

Can I keep the original pixel size and only lower quality?

Turn off 'allow smaller dimensions' in the advanced options. If the target cannot be reached at the lowest quality the result is marked as still too big instead of being shrunk.

Is WebP allowed to be smaller than JPG here?

Yes, and at 100 KB a WebP generally looks noticeably better than a JPG of the same size. Use it where the destination accepts WebP; most forms still expect JPG.

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