Compress Image to 20 KB
Target size is preset to 20 KB — add your image and compress.
The 10-second test: switch off your Wi-Fi (or turn on airplane mode) and use this tool anyway. It keeps working — because there is no server doing the work.
The technical check: open your browser's developer tools, go to the Network tab, and run the tool. Your file is never sent anywhere.
Measured live on this page — files transmitted: 0 · file data sent: 0 bytes
This counter hooks the browser's own networking functions, so it would rise the instant any file data left this page. The only thing this site ever transmits is the contact form, if you choose to send one.
Select files
or drag & drop — pasting works too (Ctrl+V)
Working…
Your file is ready!
Processed on your device — 0 bytes uploaded
Thanks — feedback received!
How to compress an image to 20 KB
Exam registrations and government portals sometimes require photos or signatures under 20 KB. This page opens the compressor with the 20 KB target preset — it automatically reduces quality and dimensions until the file fits. Small photos like signatures and ID pictures reach 20 KB reliably.
20 KB is very small
This is the tightest common limit and it forces real compromises. A photograph at 20 KB will show visible blockiness in flat areas such as skies, and softness in fine detail. Text in an image becomes hard to read. Expect the result to be usable rather than good.
Get there by resizing first
The single most effective thing is to reduce the pixel dimensions before compressing. File size scales with area, so halving width and height cuts the pixel count to a quarter before quality compression even starts. A 600-pixel image at moderate quality looks far better at 20 KB than a 3000-pixel image crushed to the same size. Use the image resizer first.
Check whether the limit is real
Some forms state 20 KB but accept more. If a slightly larger file is allowed, 50 KB looks dramatically better.
Frequently asked questions
My image looks blurry at 20 KB — normal?
At 20 KB some softness is unavoidable for larger photos. Crop the image tightly first so the pixels that remain are the ones that matter.
Which portals need 20 KB images?
Many exam and government application systems, especially for signature and passport-photo fields.