Compress Image to 10KB
Aim your image at a ~10 KB (10,240 bytes) budget for thumbnails, favicons, and the strictest legacy portal caps.
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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
Ten kilobytes is an extremely tight ceiling — usually reserved for miniature thumbnails, comment avatars, or a handful of old government and exam portals that still enforce dial-up era limits. This landing preconfigures the compressor to aim at roughly 10 KB and iterates the JPEG or WebP quality until it lands close. Because you are asking for a very small file, expect a small pixel dimension and some softening of fine detail. The tool works locally in your browser, so the image is never uploaded.
FAQ
There simply is not enough data at that size to hold sharp detail. Try 20 KB or 30 KB if quality matters more.
Sometimes, but many photos need a smaller canvas to reach 10 KB without becoming unreadable.
No. It aims close to 10,240 bytes; the actual output can vary by a few kilobytes.
At this size the tool usually outputs JPG, which does not support transparency. Try the general PNG compressor if alpha is essential.
No — it never leaves your browser.
More about this tool
How it works
- Add one image that needs to land near about 10 KB.
- The tool aims for about 10 KB for extreme size caps such as micro-avatars. 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
- Start smaller on disk — Crop or resize before compressing; 10 KB cannot preserve a multi-megapixel photo.
- Prefer photos over UI shots — Screenshots and text-heavy graphics break up first at this size.
- Accept WebP/JPG output — A format change is often required to land near 10 KB.
- Preview before upload — If faces or text must stay readable, step up to 20 KB or 30 KB instead.
Supported formats
Input: JPG, PNG, WebP, AVIF. Output: JPG or WebP, whichever fits the 10 KB budget more cleanly.
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
- Comment and forum avatars
- Favicon or app-icon sources
- Ultra-strict older government form uploads
- Directory listing thumbnails
- Placeholder images for lazy-loaded galleries
Limitations
- 10 KB is a very tight budget; visible artifacts and softness are expected on complex photos.
- Sizes are approximate and may land within a small margin above or below 10 KB.
- Very large sources may need to be resized to reach 10 KB at all.
- Text and fine graphics can become hard to read; use a slightly larger target where legibility matters.
- About 25 MB per file, processed one at a time.