Compress image to 20KB
20 KB is one of the strictest limits out there — signature images, passport-photo uploads and some exam portals demand it. This tool scales and compresses automatically until your image fits.
100% private: files are processed in your browser and never uploaded to any server.
How it works
- Drop your image into the box — the 20 KB target is already set.
- The tool lowers quality first, then dimensions, until the file is under 20 KB.
- Download the result and check the final size next to the file.
Frequently asked questions
Can any image really fit in 20 KB?
Yes, but at this size the image must be small — think 300–600px. The tool reduces dimensions as much as needed; for a signature or a thumbnail the result stays perfectly usable.
Who asks for images under 20 KB?
Government and exam-registration portals (especially for signature and photo uploads), some job boards and legacy systems with tight storage rules.
Which format works best at 20 KB?
JPG, by far. PNG is lossless and rarely fits in 20 KB unless the image is tiny or has very few colors.
Is my document photo uploaded anywhere?
No — compression runs inside your browser, which matters when the image is an ID photo or a signature. It never leaves your device.