Compress image to 10 KB

Shrink your JPG or PNG to 10 KB online — free, no signup, 100% in your browser. The target is preset to 10 KB, so just upload and download.

10 KB targetJPG / PNG supportedBest for Signatures🔒 No upload
📁 Drop your image here, or click to choose (JPG / PNG)

Where a 10 KB limit is used

A 10 KB limit is most often used for signatures and thumb impressions — rarely photographs. A 10 KB limit almost always applies to a signature or thumb-impression image, not a photograph — it is too small for a clear face photo. Many online forms ask for the signature to be 10 KB or under so the upload stays light.

Tip for hitting 10 KB cleanly

Scan or photograph your signature on plain white paper, crop tightly around the strokes, and convert to JPG before compressing — a tightly cropped black-on-white signature reaches 10 KB easily without smudging.

⚠️ File-size rules vary between forms and change between exam cycles — always confirm the exact limit in the official notification before you upload.

Frequently asked questions

Can a passport photo really fit in 10 KB?
A small signature fits comfortably in 10 KB, but a face photo at 10 KB will look blurry. If your form asks for a 10 KB photo, double-check the notification — it is usually the signature that has the 10 KB cap, while the photo is allowed a larger size.
How do I compress an image to 10 KB?
Upload your photo above — the target is already set to 10 KB. Click Compress and the tool lowers the quality just enough to bring the file at or under 10 KB, then lets you download it. Nothing is uploaded to a server.
Will the image still be clear at 10 KB?
The tool keeps the highest quality possible while meeting the 10 KB limit. For signatures and thumb impressions — rarely photographs, 10 KB is enough to stay clear; very small targets naturally soften the image more.
Is it free and private?
Yes — completely free, no signup, no watermark, and the compression runs entirely in your browser so your file never leaves your device.

By Narender Chaudhary, Editorial & Product Lead · Updated June 2026

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