Compress an image to 100KB
100 KB is a common limit for website uploads, email signatures and online applications. Set the target and the compressor lowers the quality only as far as needed to get under 100 KB.
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How to use the Image Compressor
- 1Drop one or more images (JPG, PNG, WebP or AVIF) onto the box, or tap it to choose files.
- 2Choose Quality to set the level yourself, or Target size to enter the file size you need, such as 100 KB.
- 3Pick the output format and, if you like, a maximum width. WebP usually gives the smallest file.
- 4Download each image, or all of them as one ZIP file. Everything happens on your device.
Frequently asked questions
What size in pixels fits in 100KB?
A JPG of about 1,600 pixels on the long side usually fits in 100 KB at good quality. Busy, detailed photos need a lower quality or a smaller size than simple ones.
Is 100KB small enough for a fast website?
For most content images, yes. For large hero images, try WebP at the same target: you get more detail in the same 100 KB, and pages load faster on mobile data.
Why is my result a little under 100KB instead of exactly 100KB?
JPG and WebP quality changes in steps, so the tool picks the highest step that stays under your target. It never goes over the limit you set.
Related free tools
All tools- Image CompressorShrink JPG, PNG and WebP files, or hit an exact size like 100 KB.
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