Compress Image to 20KB

Compress any image to 20KB or less online for free — JPG, PNG, WebP or HEIC, one file or a batch. The target is preset to 20 KB, so just drop your images and download. Ideal for signatures and photos on exam and job application forms. Runs 100% in your browser.

100% private — your images never leave your browser. Conversion happens on your device; nothing is uploaded.

Drop images to compress

JPG, PNG, WebP or HEIC · multiple files OK

Quality

Max width / height

Output format

Resize behavior

Target max file size

KB per image — each file is shrunk until it is under this size

Keep EXIF / metadata White background for JPEG / WebP / AVIF

Metadata is removed by default (uncheck to keep EXIF). PNG keeps transparency; JPEG/WebP/AVIF use a white background when enabled. AVIF output requires a modern browser. Files never leave your device.

How to compress image to 20KB

Drop your images here, or click to choose them (the target is already set to 20 KB).
Optionally change the target size, quality or output format.
Click “Compress & download”.
Check the new file sizes — each image is now under 20 KB.

What you can use it for

Signature images for online exam and government forms
Tiny ID or thumbnail photos for application portals
Icons and avatars with strict size limits
Images for low-bandwidth email or SMS

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Frequently asked questions

How do I compress an image to 20KB?

Drop the image in and click “Compress & download”. The target is preset to 20 KB, and the tool lowers quality and, if needed, dimensions until the file is under that size.

Will my file be exactly 20KB?

It will be just under 20 KB. The tool aims about 3% below the limit so the file passes upload checks whether a site counts 1 KB as 1,000 or 1,024 bytes.

Why does my 20KB image look small or blurry?

20 KB is a very tight limit. To fit, the tool reduces quality and may scale the image down. Crop away empty space first, and use JPG output, for the sharpest result at this size.

Which format compresses smallest?

JPG (or WebP) reaches small sizes with the best quality for photos. PNG is lossless, so very small PNG targets mostly work by shrinking the image dimensions — switch the output to JPG if the result looks too small.

Are my images uploaded?

No. Compression happens entirely in your browser, so photos, IDs and signatures never leave your device.