Compress Image to 20 KB
Direct answer: drop up to 20 images and KBExact fits each one to 20 KB or under — quality searched first, dimensions second — with a ZIP download at the end. Nothing is uploaded.
🔒 Your file is processed entirely in your browser. It is never uploaded to a server — there is no server.
When you need exactly 20 KB
- Signature and photo windows that start at 20 KB
- IBPS-style photo windows (20–50 KB) — for the exact window plus dimensions, use the photo & signature resizer
- Thumbnails and small uploads with a hard 20 KB ceiling
Why does KBExact aim about 5% under the number you type? Because portals do not all count a kilobyte the same way — some use 1 KB = 1,000 bytes, others 1 KB = 1,024. A file that is exactly at the limit in one counting can be over it in the other. Read how KB is counted, and if a portal still refuses your file, work through why portals reject files.
Questions
Can I compress many images to 20 KB at once?
Yes — up to 20 in one batch, each fitted to the same target, downloadable one by one or as a ZIP. Each row also accepts its own target if one file needs a different size.
Will my photo lose much quality at 20 KB?
The engine searches for the highest quality that fits, so the loss is the minimum physics allows. Very large photos may also be resized; the report always says what was done.
Is anything uploaded?
No. Everything runs in your browser, and the EXIF metadata (including any location data) is stripped from the output.