Compress an image to 100 KB
Aim at a hard 100 KB limit. The tool searches for the highest quality that still fits, and tells you the exact final size.
Your file is processed on your device and is never uploaded.
What this tool does
- Automatically finds the best quality that fits 100 KB
- Shows the original and final size side by side
- Reduces dimensions too, if quality alone is not enough
How to use compress image to 100kb
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Add your image
Drop in a JPG, PNG or WebP file.
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Let it find the setting
The tool tries repeatedly until it lands at or under 100 KB.
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Check and download
Compare against the original, then save.
Frequently asked questions
Why do I need an image under 100 KB?
100 KB is a common limit for profile pictures and document attachments, and is generous enough to keep a photograph looking good.
Can any image be compressed to 100 KB?
Yes, in almost every case. 100 KB is enough for a detailed photograph at typical web dimensions, so the quality reduction is usually imperceptible.
What will the result actually look like at 100 KB?
Almost no visible change for a typical photograph. Full dimensions are usually kept and only the quality is nudged down, which is not something you can see at normal viewing size.
How does it hit the target?
It repeatedly re-encodes the image, adjusting quality by binary search until it finds the highest setting that still fits. If quality alone cannot get there, it progressively reduces the pixel dimensions as well. The whole search runs on your device, typically in under a second.
Which format gives the smallest file?
JPG is the safe default and what most upload forms expect. WebP fits the same picture into roughly 70 KB if the destination accepts it.