What this opens on
The Pixels panel. Type the width you need and the height follows the picture’s own shape, or type the long edge and let the bench work out the rest. The resulting factor, the megapixels and whether this browser can hand the result back are on screen before anything is saved.
| You have | You type | You get | Factor |
|---|---|---|---|
| 800 × 600 | width 1,920 | 1,920 × 1,440 | ×2.4 |
| 1,200 × 900 | long edge 3,000 | 3,000 × 2,250 | ×2.5 |
| 600 × 900 | short edge 1,080 | 1,080 × 1,620 | ×1.8 |
The picture never leaves this tab: the resolution goes up on your own processor.
Where this falls down
- A higher resolution is not a sharper picture.Resolution is a pixel count. Focus, motion blur and compression damage are enlarged with everything else; the Detail slider can steepen edges, inside a halo guard, but not refocus.
- DPI is not resolution.A print lab's 300 DPI is pixels per inch of paper. This page sets pixels; the saved file carries no density tag, so tell the lab the print size.
- Huge sizes meet the browser's ceiling.A desktop browser hands back up to 16,000 pixels on an edge and 80 megapixels; a phone far less. Past that the bench names the largest size that fits.
Questions people ask
- Does increasing the resolution add detail?
- It adds pixels. Each new pixel is worked out from its recorded neighbours by the method you pick, so edges stay smooth instead of turning into blocks — but nothing the camera did not record comes back. The 1:1 strip under the picture shows exactly what the new pixels look like before you save.
- What if I type a size smaller than my picture?
- The bench says so and offers to keep the picture at its own size. A smaller target is allowed — the save is exactly the size you typed — but this page is about making pictures bigger, and it will not pretend a reduction is an enlargement.
- Why does it stop at eight times?
- Past 8× nearly every output pixel is a guess about a guess, and the results stop being worth the memory. The bench names the largest size it will honestly produce for your picture instead of a blank canvas.
- Is my picture uploaded?
- No. The picture is decoded and enlarged inside this browser tab, and the saved file is written by your browser. No request this page makes carries it.
Better fit?
- Increase image size110%, 125%, 150% or any percent you type: the small enlargements the factor chips skip.
- HD image converterFit a small picture to 1280 × 720 or 1920 × 1080 without cropping or stretching it.
- 4K image converterBring a picture up to 3840 × 2160, with the factor it needs stated and refused past 8×.
- Enlarge for printA conservative 2× opening state with the resulting print dimensions explained before export.
