How Does It Work?
- Choose or drop an imageJPEG, PNG, WebP and GIF all work. The file is opened locally — no upload, no waiting for a server.
- Set the sizeType a width and the height follows automatically, or pick a percentage. Unlink the proportions if you need an exact box.
- Pick a format and downloadJPEG for photographs, PNG when you need transparency, WebP for the smallest file. The download button saves it to your device.
What Is It Used For?
Most "resize your image" websites upload your file to a server, process it there and hand back a link — which means your photo now sits on someone else’s machine. This tool uses the browser’s own canvas to decode, scale and re-encode the image on your device, so the picture never travels anywhere. That also makes it instant, and it works with no internet connection once the page has loaded.
- Shrinking a phone photo that is too large to email or upload.
- Resizing an image to the exact dimensions a website or form demands.
- Compressing pictures before putting them on a web page, to keep it fast.
- Converting a heavy PNG screenshot into a much smaller JPEG or WebP.
- Handling images you would rather not upload to an unknown service.
Examples
| Starting point | Settings | Typical result |
|---|---|---|
| 4000 × 3000 phone photo, 4.2 MB | 1600 px wide, JPEG 85% | ~420 KB |
| 1920 × 1080 PNG screenshot, 2.1 MB | Same size, JPEG 85% | ~240 KB |
| 3000 × 2000 photo, 3.5 MB | 50%, WebP 85% | ~180 KB |
| 800 × 800 logo with transparency | Same size, PNG | Lossless, transparency kept |