Compress image to 100 KB

A 100 KB JPEG at 1000 px wide is the sweet spot for the web: it loads instantly, looks sharp on a phone, and passes almost every upload limit. Most photos from a phone camera drop from 3 to 5 MB to under 100 KB with no visible change at normal viewing size. If your original is small already, the tool just re-encodes it at the best quality that fits.

At 100 KB you can expect about 900 to 1100 px on the long side, which is enough for most screens. The exact number depends on how much fine detail the image has: skies and plain walls compress well, foliage and fabric don't.

1. Drop or paste the image. Nothing is uploaded; the work happens in your browser, even offline.
2. The tool encodes the image as JPEG at several quality levels and keeps the one that lands just under 100 KB.
3. If even the lowest acceptable quality is too big, it reduces the pixels a little and tries again, so the result is the largest image that fits.
4. Download the file, or share it straight into WhatsApp or the form on a phone.

Every result shows the final size and pixel dimensions before you download. Need a fixed pixel size too? Set Resize to Exact size (crop) and type the width and height.

This limit is common for university and job portals, product listings, email attachments and website thumbnails. If the portal also lists a minimum size (for example "20 KB to 50 KB"), open More options and fill in Min (KB): the tool pads the JPEG so it is never rejected for being too small, without touching the pixels.