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Compress Image to 100 KB
Make an image under 100 KB for forms, email and uploads – free, no sign-up, and your image never leaves your device.
How to compress an image to 100 KB
- Keep Photo selected and tap Choose photos (or Camera).
- The size is already set to 100 KB – change it if your form asks for another size.
- Tap Compress.
- Check the new size, then Download the JPG.
Questions
Is the photo uploaded?
No. The photo is made smaller inside your browser on your own phone or computer. Nothing is sent to a server – important for ID photos and certificates.
What if it cannot reach 100 KB?
The tool first lowers the quality, then the pixel size. If a very large photo still cannot reach the size, it tells you and gives the smallest result. Choose "Small 800" under Resize and try again.
Does it change the photo size in pixels too?
Only if needed to reach the KB size, or if you choose a size under Resize. If your form also asks for exact pixels (for example 200 × 230), check the result and use a photo editor to crop it to that shape first.
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PDF Tools and the engineering calculators on your phone – works offline.
PDF Tools use pdf-lib (MIT licence) and PDF.js (Apache 2.0 licence).