Resize an image online
To resize an image online, drop it in the box, type a new width or height in pixels (or choose percent, centimetres or inches), and download it. The shape stays the same unless you unlock it. It all happens in your browser, so the picture is never uploaded.
Free · no signup · your files never leave your device
How it works
- Drop your picture into the box above, or paste it with Ctrl+V.
- Choose how to set the size and type the new numbers. The other side follows so the picture is not stretched.
- Check the result, then download it.
Three ways to set the size
- Pixels: type the exact width and height a site or form asks for.
- Percent: shrink or enlarge by an amount, like 50%.
- Print size: type centimetres, millimetres or inches and pick the DPI; the tool works out the pixels.
Resize without losing quality
- Make pictures smaller, not bigger: shrinking keeps detail, enlarging cannot add it.
- Keep the shape locked so faces are not stretched.
- Start from the original, not a copy that was already compressed.
- Save photos as JPG or WebP at about 90% quality, and logos as PNG.
Need an exact file size too?
Forms often ask for pixels and KB together. The exam and size pages do both in one step: resize to 50 KB, resize to 20 KB, or pick your exam for the exact size.
Questions people ask
How do I resize an image without losing quality?
Make it smaller rather than larger, keep the aspect ratio locked, and save at 90% quality or higher. Resizing down keeps pictures sharp.
How do I resize an image without changing the aspect ratio?
Keep 'Keep the picture's shape' ticked and type only the width or the height.
How do I resize an image to a specific size in KB?
Use the file-size pages, such as resize to 50 KB or resize to 100 KB, which land inside an exact KB window.
Can I resize in centimetres or inches?
Yes. Choose cm, mm or inches, pick the DPI and the tool shows the pixels.
Does it work on my phone?
Yes. Open this page in your phone browser and choose a photo from the gallery.
Which formats are supported?
JPG, PNG and WebP. You can also change the format when you download.
Is it free?
Yes. There is no signup, no watermark and no limit on how many pictures you resize.
Is my picture uploaded?
No. The picture is resized inside your browser, so it never leaves your device.