Compress image to 100 KB

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

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

Where a 100 KB limit is used

A 100 KB limit is most often used for documents, certificates and handwritten declarations. A 100 KB cap is typical for scanned documents — certificates, mark sheets and handwritten declarations that some forms require. It is larger than a photo limit because documents contain more detail and text.

Tip for hitting 100 KB cleanly

Scan documents in greyscale rather than full colour where allowed — greyscale scans hold text clearly while compressing to 100 KB far more easily than colour ones.

⚠️ 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 I fit a scanned certificate in 100 KB?
Usually yes. Scan at a moderate resolution, save as JPG, and compress to 100 KB — the text stays readable, which is what verifiers check.
How do I compress an image to 100 KB?
Upload your photo above — the target is already set to 100 KB. Click Compress and the tool lowers the quality just enough to bring the file at or under 100 KB, then lets you download it. Nothing is uploaded to a server.
Will the image still be clear at 100 KB?
The tool keeps the highest quality possible while meeting the 100 KB limit. For documents, certificates and handwritten declarations, 100 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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