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JPG to exact KB

Convert JPG to Any KB Size You Type

JPG is already compressed, so shrinking it further is a re-encode: quality comes down until the bytes fit your window. Type the KB number a form demands and the tool opens with that preset, searching quality on your device until the file measures right.

KB targetConvert to this KB now
Re-encoding stays on your device | the original JPG is never uploaded or replaced.

Form windows are usually a range, not a single number: 20 to 50 KB, 10 to 100 KB, under 200 KB. Landing mid-window is safer than grazing the ceiling, because some portals re-encode on their side and measure the result.

The encoder search is measured per image rather than guessed from averages, which is why a scan and a selfie aimed at the same target can end at different quality settings yet both land inside the window.

DPI metadata survives the re-encode when present, so a 300 DPI scan stays a 300 DPI scan after conversion | portals that check density keep passing.

Is converting JPG to a smaller KB lossy?
Yes, re-encoding at lower quality is lossy by definition. At sensible targets the loss is invisible for forms and sharing | keep the original for prints.
Can I go upwards, say 30 KB to 80 KB?
Padding a compressed JPG buys no detail. If a portal demands a minimum size, recompress from the original at higher quality instead.
What about PNG inputs?
The same preset accepts PNG and other formats and outputs JPG at your KB target, which is what portals expect.

How it works

  1. Type the KB target and open the tool with it applied.
  2. Add the JPG (or any image) file.
  3. Run and verify the achieved size against your portal window.
  4. Download the converted JPG.

Related sizes and converters

JPEG to 10 KBJPEG to 25 KB50 KB targetJPEG to 150 KB20-50 KB bandReduce in KB

Frequently asked questions

Is converting JPG to a smaller KB lossy?
Yes, re-encoding at lower quality is lossy by definition. At sensible targets the loss is invisible for forms and sharing | keep the original for prints.
Can I go upwards, say 30 KB to 80 KB?
Padding a compressed JPG buys no detail. If a portal demands a minimum size, recompress from the original at higher quality instead.
What about PNG inputs?
The same preset accepts PNG and other formats and outputs JPG at your KB target, which is what portals expect.