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Compress an image to 40KB
Many upload forms reject a photo that is even slightly over the limit. This tool compresses a JPG, JPEG or PNG image to about 40KB. It is commonly used for photo uploads that must stay between 20KB and 50KB.
The compressor searches for the JPEG quality that lands closest to 40KB, so you keep as much detail as the limit allows.
How to use this tool
- Upload the photo or scanned image from your phone or computer.
- Check that the target file size is set to 40 KB. You can type another value if your form asks for a different size.
- Click Compress & Download and upload the saved file to your form.
Frequently asked questions
How do I reduce a photo to 40KB?
Upload the photo, keep the target at 40 KB and click Compress & Download. The saved file will be very close to 40KB. If your form is strict about the limit, set the target a few KB lower.
Will the photo look blurry after compressing to 40KB?
For normal photos the difference is hard to notice at 40KB. Very large images lose more detail, so resize them first if needed.
Is my photo uploaded to a server?
No. The image is compressed inside your browser and the file stays on your device.