Image

Image resizer

Resize one photo or a whole batch. Set the pixels, the centimetres at a DPI, or a maximum file size in KB. Your images never leave your device.

Free, no sign-up
Runs in your browser
Nothing uploaded

1. Add images

Choose images or drop them hereJPG, PNG, WebP and more. Up to 50 images. Nothing is uploaded.

2. Pick the size

Preset (optional)

Presets are common sizes, not official rules for any exam or website. Always check the size your form asks for.

Width (px)

Height (px)

Fill one box and the other follows the photo's shape. Fill both to set an exact size.

When both sides are set

3. Format

Save as

Quality: 90

Background for transparent areas

Camera and location data (EXIF) are not kept in the resized copy. The DPI value is only used to work out pixels, it is not written into the file.

Results

Add an image to begin. Your resized copies will appear here.

Keep client files and notes in one calm place

BeginRooms keeps each client project, files and deadlines together, and BeginNotes keeps your quick notes. This resizer stays free either way.

Try BeginRooms free for 11 days Open BeginNotes

How the resize works

Each image is decoded in your browser, drawn onto a canvas at the new size and saved again. Large reductions are done in steps so the result stays sharp. Photos that carry a rotation flag are turned the right way up first.

Pixels from centimetres = cm / 2.54 x DPI (35 mm at 300 DPI = 413 px)

For a target size in KB the tool tries different quality levels and keeps the highest quality that fits. If even the lowest quality is too big, it shrinks the picture by about 15% and tries again, up to eight times. PNG files cannot be made smaller by lowering quality, so a target size always saves as JPEG or WebP.

Frequently asked questions

Are my photos uploaded anywhere?

No. Everything runs inside your browser tab. You can switch off the internet after the page loads and it still works.

Will this meet my form or exam photo rules?

The presets are conventional sizes. Every form has its own rules for size, background and file size, so read yours and set the exact numbers.

Why is my HEIC photo not accepted?

Most browsers cannot open HEIC. Convert it to JPG first, or change the camera setting to Most Compatible.

Is there a limit?

Up to 50 images at a time, and the result may not exceed 50 megapixels. Very large outputs can fail on some phones.