Private by default
Every step runs inside your browser. Your photos are never uploaded to a server.
Compress Image to 20 KB
Compress a photo to 20 KB or less free in your browser. It keeps the most pixels that fit, then the best JPG quality. Batch-ready, no upload.
Runs on this deviceBatch-readyNo sign-up
Processed locally — your files never leave your device.
or drop images here
JPEG, PNG, WebP, AVIF, GIF, SVG, BMP, TIFF, HEIC, ICO, JPEG XL, QOI, Photoshop, RAW photo · processed locallyYour images will be processed on this device.Quick answer
FreeImageKit compresses a photo to 20 KB or less for free, in your browser, without uploading it. It fits the photo inside 1,000 px on its longest side, then searches for the highest JPG quality that stays at or under 20 KB. Very small limits like 20 KB usually come from exam, job and ID forms; if a form also fixes the pixel size, resize to that first.
How to use this page
- Select one or more photos (JPG, PNG, WebP or HEIC) and choose Run.
- Each photo is fitted inside 1,000 × 1,000 px, then saved as the highest-quality JPG at or under 20 KB.
- Download each image, or all of them as a ZIP, and check the file sizes.
What 20 KB does to a photo
Results of this page's exact settings on our test photos, measured 2026-10-06 in Chrome. Every result stayed at or under 20 KB. Your photos will differ: the more detail a photo has, the lower the quality it needs to fit.
| Original photo | Result | Change |
|---|---|---|
| JPG photo, 1920 × 1080 px, 570.6 KB | 1000 × 563 px, 19.9 KB | 97% smaller |
| JPG photo, 987 × 1481 px, 244.1 KB | 666 × 1000 px, 19.0 KB | 92% smaller |
| HEIC photo, 1280 × 854 px, 701.3 KB | 1000 × 667 px, 18.3 KB | 97% smaller |
| 12 MP test photo with grain, 4032 × 3024 px, about 4 MB | 1000 × 750 px, 19.7 KB | 100% smaller |
| PNG text image (signature-like), 552 × 96 px, 15.1 KB | 552 × 96 px, 15.4 KB | 2% larger |
Make it yours
Need a different size, format or pixel limit? Open these settings in the workflow editor, change anything, and run your own version. Links carry settings only — never images.
Never over the limit
If a photo cannot reach 20 KB at these settings, you get a message instead of a file that is too large.
Frequently asked questions
Why does my 20 KB photo look soft?
20 KB is very little data for a full photo, so the quality search has to go low to keep 1,000 px. If you need it sharper, use Resize Image to 20 KB, which shrinks the photo further so each pixel gets more data.
Can I compress a signature to 20 KB?
Yes. Signatures are mostly plain background, so they usually fit at full size: in our test a 552 × 96 px text image stayed full size at 15.4 KB. Crop the signature tightly first so the file holds only the signature.
Does 1 KB mean 1,000 or 1,024 bytes here?
1,024 bytes, like most file managers. A few forms count 1 KB as 1,000 bytes, which is about 2% less; for those, choose Customize and set the target a little lower, for example 48 KB instead of 50 KB.
Are my photos uploaded?
No. Resizing and the quality search run in your browser, so the photos never leave your device. It is free, with no sign-up and no watermark.
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