Compress Image to 100KB

Need a photo under 100 KB? Compress image to 100KB here: drop your JPG, PNG or WebP and it is automatically made as sharp as possible while staying under the limit. A common limit for documents, ID scans and photos on visa, job and university applications.

How to compress an image to 100KB

The tool searches for the highest quality that still fits under 100 KB. It first lowers the JPG quality step by step; only if the image is still too large at a low quality does it reduce the pixel dimensions, just enough to fit. So you get the sharpest image the limit allows, without trial and error.

Where a 100KB limit is common

A 100 KB limit is typical for scanned documents and photos on visa, university, job and bank applications, and for profile pictures on many websites. At 100 KB a photo can keep about 1,000 to 1,400 pixels across, so faces, product details and printed text on ID cards and certificates stay sharp and readable.

For documents, photograph the page flat and straight from above in even light, crop the edges, then compress. Text needs contrast more than pixels, so a well-lit scan stays perfectly readable at 100 KB.

Tips for the best result

• Crop first. Cutting away empty background leaves more of the 100 KB for what matters. Use the image resizer & cropper, then compress here.
• Choose JPG for photos. It is accepted by every upload form and gives the smallest files for photos. PNG keeps transparency but needs more space.
• Check the exact limit. We count 1 KB as 1,000 bytes and stay under it, so the result is accepted whether a website counts 1,000 or 1,024 bytes per KB.
• Different limit? Type any size in the KB box; the image is recompressed instantly.

Private by design

Your images are processed by your own browser and never uploaded to a server, so they stay on your device. There is no watermark, no sign-up and no limit on how many images you convert.