IMAGE RESIZER & COMPRESSOR

Resize an image to a KB limit

Enter the maximum file size from your upload form. Choose KB or MB, then add dimensions only if you need them.

Images stay on your device

Image settings

Free to use · No sign-up

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Up to 10 JPG, PNG, WebP or DNG imagesUp to 100 MiB per imageProcessed in your browser

Choosing the right file-size limit

File size and dimensions are different

KB measures the file's storage size. Pixels describe its width and height. Reducing one does not automatically meet a requirement for the other.

Reduce a photo to the requested size

For a 200 KB limit, enter 200 and choose KB. You can also enter 20 KB, 50 KB or 500 KB, or select MB for limits such as 1 MB or 4 MB. The image compressor checks each successful output against the chosen maximum and displays its actual byte count.

This tool uses decimal units: 1 KB is 1,000 bytes and 1 MB is 1,000,000 bytes. Small limits may require a different accepted format or smaller dimensions; not every combination can be achieved.

Maximums versus minimums

This tool checks a maximum. If a form also specifies a minimum file size, compare the downloaded byte count against that minimum; this tool does not pad or guarantee a minimum size.

When a smaller file needs smaller dimensions

If no dimensions are required, you can let the tool reduce them. If exact dimensions are required, try another format accepted by your upload form. JPG and WebP can be smaller than PNG for photographs.

Three steps. Up to 10 images.

How it works
1

Choose your images

Select up to 10 JPG, PNG, WebP or DNG images. They stay on your device.

2

Set your limits

Add a file-size limit and optional dimensions. The same settings apply to each image.

3

Check & download

Review each result, then download images individually or together as a ZIP.

Useful answers

Need help?
What if my image cannot fit the file-size limit?

Some combinations cannot be reached with the available quality settings. Try a different accepted format, a higher limit or smaller dimensions if the receiving form permits them. We never silently reduce dimensions you explicitly request.

Will my image be cropped or stretched?

No. Enter one dimension to preserve the original proportions. Enter both to fit the image inside an exact-size canvas, with padding where needed. Padding is transparent in PNG or WebP and white in JPG.

Which format should I choose?

Use a format accepted by the destination. JPG is often useful for photographs at small file sizes. PNG is lossless and supports transparency, but can produce larger files. WebP also supports transparency. JPG replaces transparent areas with white.

Can I convert DNG RAW photos?

Yes. The tool develops DNG RAW data on your device and can save the result as JPG, PNG or WebP. “Keep original format” saves DNG files as JPG. RAW rendering can look different from the image produced by your camera or editing software, and some DNG variants may not be supported.

Is my image uploaded anywhere?

No. Opening, resizing and compressing happen in your browser. The tool does not send your image to us. Read the privacy notice.

Can I process more than one image?

Yes. Select up to 10 images at once. The same file-size limit, dimensions and output-format setting apply to each one. Results are checked separately, so if one image cannot meet the requirements, you can still download the others. Each image can be up to 100 MiB, 60 megapixels and 16,384 pixels per side. Total batch output is limited to 200 MiB. Very large images need more device memory and may take longer to process.

Does this check passport or application photo rules?

The tool checks file size, pixel dimensions and format. It cannot check composition, background, subject position, DPI or a particular organisation's photo rules. Animated images are not supported. Always review the result against your destination's requirements.

Find the right starting point

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