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Image Resizer

Add images, choose the size, press the button. Up to 20 at once.

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Images are processed on this page.

    Images are processed on this page only. Nothing is sent anywhere.

    How to use

    1. 1. Add imagesDrop them here or click to choose. You can add several at once.
    2. 2. Choose the sizePick pixels, percent, mm or cm and enter the width and height. Keep the aspect ratio, or get an exact size by cropping, padding or stretching. The new size is shown before you press.
    3. 3. Resize and savePress “Resize” and save each image or all of them. You can also choose the format (original, JPG, PNG or WebP).

    Pixels and centimetres

    An image’s size is a number of dots (pixels); its printed length depends on how many dots are placed per inch (2.54 cm), called dpi. For example, 3.5 cm wide printed at 300 dpi is 3.5 ÷ 2.54 × 300 ≈ 413 pixels.

    FAQ

    Who is this for?

    People preparing photos for a blog or online shop, anyone making an image that must be “within N × N pixels” for an application, and anyone sizing images for social media or slides.

    Does it cost anything?

    No. No watermark and no sign-up. You can add up to 20 images at a time; more images and saving everything as a ZIP are Premium features.

    Are my images uploaded?

    No. Images are read and resized on this page, on your device.

    What does “keep aspect ratio” do?

    Enter only the width or the height and the other side follows the original shape. Enter both and the image is made as large as possible while fitting inside that box.

    How do I get an exact size?

    Untick “Keep aspect ratio” and enter both sides. Then choose: “Crop” keeps the centre and trims the edges, “Pad” fits the whole image and fills the rest with a colour you choose, and “Stretch” fills the box even if the shape changes.

    How do I use mm or cm?

    Choose mm or cm and enter the print resolution (dpi). Pixels = length ÷ 2.54 (for cm) × dpi. 300 dpi is common for printed photos.

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