Compress image to 100 KB
Get any photo under 100 KB at the best quality that fits. 100% private: it never leaves your device.
- Processed on your device
- No upload, no sign-up
About this tool
Typical for profile photos and documents on online forms and portals. This tool finds the best quality that fits under 100 KB, and makes the image smaller in pixels only when quality alone isn't enough. It runs in your browser, so the photo is never uploaded anywhere.
Always at or under 100 KB
The result is never over the limit: it's at or under 100,000 bytes, or the tool tells you it can't get that small. Counting a KB as 1,000 bytes keeps it under the limit on sites that count 1,024 too.
What 100 KB looks like
- A 12-megapixel phone-size photo (4.2 MB) became 99.5 KB (99,500 bytes), 816 × 612 pixels.
- A 2400 × 957 photo (1.1 MB) became 99.1 KB (99,071 bytes), 1200 × 479 pixels.
- Both are detailed landscapes, the hardest kind to shrink. Portraits, documents and plain backgrounds keep more pixels at the same size.
Tips for 100 KB
- At 100 KB a face or a single document page stays clear on screen.
- For a scanned page, a white background and dark text compress best: crop off the edges of the desk.
- Use WebP only if the form accepts it; otherwise JPG is the safe choice.
100% private
Most image compressors upload your photo to their servers. This one works inside your browser tab: the photo, which is often an ID photo or a signature, is never uploaded to Krisox or anyone else. Location data (EXIF) is removed along the way.
Questions
Will my photo be clear at 100 KB?
See the measurements above: at 100 KB the 12-megapixel test photo kept 816 × 612 pixels. Download it and zoom in before you submit.
Is 100 KB counted as 100,000 or 102,400 bytes?
Sites differ. The tool aims under the smaller figure, 100,000 bytes, so the result fits either way.
Which formats can I use?
JPG, PNG, WebP and iPhone HEIC photos. The result is a JPG (accepted almost everywhere) or a WebP.