Reduce any photo to a 100KB file size for uploads and email — a free, browser-based tool that finds the best quality within your limit.
Why 100KB is a popular target
100KB is generous enough to keep a full photo looking good while still being small enough to upload quickly and attach to emails. It's a common limit on forms that accept a slightly larger, more detailed image than the strict 20–50KB portals.
Compress your image to 100KB
Upload your photo below. The tool automatically dials the JPEG quality to the highest setting that keeps the file under 100KB, then lets you download the result.
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Compress Image to 100KB
How to keep detail at 100KB
- For detailed photos, 100KB usually preserves faces and text clearly.
- If you need the image both small and large in dimensions, resize first, then compress.
- Avoid re-compressing an already-compressed JPEG repeatedly — start from the highest-quality original you have.
Your files never leave your device. All compression happens locally in your browser.