Compress an image to 100 KB
100 KB is enough for a photograph of a document that someone has to actually read.
Runs in your browser — nothing uploadedAlready set to 100 KB
Where 100 KB comes from
- Portals accepting a photographed document instead of a scan.
- Web pages and listings with a per-image cap.
- Messaging and email where an attachment has to stay small.
What actually fits in 100 KB
Worked out from what this tool produces, not from a rule of thumb. Where a row says no, it says what to do instead.
| What you have | Fits in 100 KB? | What it takes |
|---|---|---|
| A photographed A4 page | Yes | Around 1280–1600px wide; body text stays readable |
| A passport-style headshot | Comfortably | Close to original quality at a normal size |
| A product photo for a listing | Yes | Around 1280px at a good quality — the usual web size anyway |
| A screenshot of a spreadsheet | Yes, but | Fine lines and small type suffer. A PNG at a smaller width often beats a JPEG here |
A photograph of a page is mostly white, and white is cheap. Cropping away the desk, the shadow and the edge of the keyboard typically does more for the file size than any quality setting.
For screenshots and flat graphics, the answer is often a different format rather than harder compression — JPEG invents fuzz around sharp edges, which is exactly what a screenshot is made of.
Questions
- What width will I end up with?
- Whatever the largest is that still fits: the search keeps the picture as wide as it can and spends the budget on quality first, narrowing only when no quality at that width fits. The result tells you which width it settled on.
- Can I compress several photos to 100 KB each?
- One at a time here — each picture gets its own search, because the settings that fit one photograph are rarely the settings that fit another.
A different limit?
Every one of these opens the same tool with a different number in the box. If the limit you were given is not here, open Compress Image and type it in.