Compress PNG to 100KB

Set a 100 KB ceiling and add a PNG file; the page re-encodes it in your browser and keeps stepping quality and dimensions down until the file fits inside 100 KB. Because both are search variables, detail is preserved for as long as the budget allows instead of being thrown away at a fixed setting.

Target output: 100KB or smaller Choose an output format, then compare the resulting size and preview. Very small targets can require lower quality or dimensions.
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Current limit: up to 50 files · 1024 MB per file. Options vary by format.

Processing method varies by format. Check this page's privacy details before uploading sensitive files.

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Frequently Asked Questions About Image Compression

Does a CV photo at 100 KB have to be square?

No. The 100 KB budget is about bytes, not shape, so keep the proportions the application displays. A 3:4 headshot reads better in a résumé header than a square crop that cuts the top of the head off.

Why is the result still not exactly 100 KB?

Encoders trade quality against bytes, so the output lands at or just under the 100 KB target rather than on it to the byte. Tighten or loosen the setting and run again until the size fits.

How much of the 100 KB budget goes to dimensions and how much to quality?

The page tries the largest clean frame that still fits first, then lowers quality only when size alone cannot reach 100 KB. Check the reported output size before you publish.

Will my original file be changed?

The result is downloaded as a separate file. Keep your original until you have checked the PNG file at or under 100 KB.

What should I check before using the result?

Open the PNG file at or under 100 KB in the application that consumes it and spot-check the parts that matter to you; the original file stays untouched if you need to re-run with different options.

How accurate is the Compress PNG to 100kb tool?

Our tool is engineered for precision. It uses an iterative compression algorithm within your browser to get as close to the 100KB target as technically possible, often hitting it exactly. Minor variations can occur based on the image's complexity, but the result is consistently within a very tight range of your desired size.