Free Image Compressor

How it works

Upload a photo and type the exact file size you want, in kilobytes. The tool works through progressively lower quality settings, and if that alone is not enough, it also shrinks the image’s dimensions a little, until the result fits under your target. It keeps the highest quality it can while still meeting that number, and if your photo is already smaller than the target, it hands it back unchanged rather than losing quality for nothing.

Auto picks JPG for ordinary photos, or WebP if your image has a transparent background, since JPG cannot keep transparency. You can also choose the format yourself: JPG for the smallest files, WebP for a similar size with transparency kept, or PNG for a lossless result, which usually means a larger file.

Getting the size you need

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• Type any number of kilobytes, or use one of the quick presets. Application and admission portals often cap uploads somewhere between 50 and 200 KB, so check the number the form itself asks for.
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• If the tool cannot quite reach a very small target, it says so plainly and gives you the smallest version it could manage while still looking reasonable, rather than guessing at something illegible.
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• For a stubborn target, try cropping the photo tighter first, or switch to JPG if you started with PNG.
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What this tool is for

Shrinking your own photos and scanned documents down to a specific file size for uploads: passport and ID photos, admission forms, application portals, email attachments, anywhere a site asks for a file under a certain number of kilobytes.

It accepts images only, and nothing you upload ever leaves your device.