Compress Image to 100KB
Preset target of ~100 KB (102,400 bytes), a comfortable size for email attachments, blog images, and government form photos.
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Drop your images here
PNG, JPG, or WebP · compressed on your device
Files stay on your device. Nothing is uploaded to Konvert.
Results
About this tool
One hundred kilobytes is one of the most useful size targets on the web — light enough for fast page loads and email attachments, but generous enough to keep photos looking sharp. This landing gears the compressor toward that number, iterating quality until the output lands close. It works with JPG, PNG, WebP, and AVIF inputs and defaults to JPG or WebP output because those formats deliver the best quality per byte at this size.
FAQ
For typical web-sized photos, yes — 100 KB is a strong quality-to-size point.
The default keeps a familiar JPG. WebP is offered only when the savings are significant.
The output is close to 102,400 bytes but not byte-exact.
No, they stay in your browser.
Yes, any modern mobile browser can run the tool.
No. Processing runs in your browser on your device. You download the result and use it yourself.
More about this tool
How it works
- Add one image that needs to land near about 100 KB.
- The tool aims for about 100 KB for everyday document and email uploads. Results are approximate, not exact bytes.
- Check the preview. If the target is unrealistic, crop or resize the source and try again, then download.
Tips
- Leave room for the message body — If emailing, remember the total message size—not just the image.
- Screenshots: flatten first — PNG UI captures shrink better after removing unused chrome.
- Check both size and dimensions — Some portals also cap width; resize separately when required.
- Use 150–200 KB for hero shots — Marketing imagery usually wants the next rungs up.
Supported formats
Input: JPG, PNG, WebP, AVIF. Output: JPG or WebP.
Input
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JPG jpg, jpeg
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PNG png
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WEBP webp
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AVIF avif
Output
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JPG jpg, jpeg
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PNG png
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WEBP webp
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AVIF avif
Common uses
- Email attachments that must stay under a company cap
- Government service forms allowing 100 KB photos
- Blog and news feature images
- LinkedIn Learning and course platform uploads
- Internal wiki screenshots
Limitations
- 100 KB is a target; the file may land within a small margin.
- Very large 4K photos may need slight downscaling to fit cleanly.
- PNG-only workflows may not benefit as much as JPG or WebP.
- Not tuned for print-resolution use.
- About 25 MB per file, processed one at a time.