Compress an Image to Any Size

Common target sizes

Most upload forms want one of these. Each has its own page with the details of what that size means in practice.

How it works

Almost every online compressor gives you a quality slider and hopes for the best. That is useless when a form states a maximum. This tool works backwards from the number you type: it keeps compressing until the file fits, then stops — so the highest quality that still meets the limit is the one you get.

• For JPG and WebPIt searches encoder quality, keeping the largest dimensions possible, and only reduces the size of the image if quality alone cannot reach the target.
• For PNGPNG has no quality setting, so the tool reduces the colour palette to an indexed palette and shrinks the dimensions only as far as it has to. Transparency is kept.
• Already small enough?The image is passed through untouched. Re-encoding a file that already fits would only lose quality for nothing.

Nothing is uploaded. That is the point.

Most compressors send your file to their server, process it, and send it back. That is why they need size limits, daily quotas, and an account. This tool does the work in your browser using the canvas and PNG encoders that are already part of it.

Your image never leaves your device. There is nothing to sign up for, nothing stored, and no quota — and it keeps working if your connection drops.

Who sets these limits

A fixed upload limit means the form will reject your file until it fits. The number changes from system to system — a government application portal, a university admission desk, a visa service, a job site and a bank's KYC upload each pick their own — and none of them will accept an exception. That is why this page takes a target instead of assuming one: type whichever number your form states, and the tool works to that rather than to a size it prefers.