Resize Images

By percent or pixels. Batch resize in seconds.

🔒 Files never leave your device

What this tool does

This tool changes the pixel dimensions of your images. Scale them by a percentage, or set a width in pixels to make a batch of photos the same width.

Height is calculated from the original aspect ratio, so nothing gets stretched. PNG and WEBP keep their format; other formats are saved as JPG.

Each row shows the original and new dimensions along with the change in file size. If you switch the mode or change the value, images already in the list are processed again — so it's easy to try a few numbers and compare.

When it comes in handy

Give every image in a blog post or product page the same width, so the photos don't jump around in size between paragraphs.

When a full-size phone photo takes ages to upload or a site says the image is too large. Scaling to 50% halves both width and height, leaving a quarter of the original pixels.

Fitting images to fixed slots such as website banners or shop thumbnails that call for a specific width in pixels.

If a slide deck or document has become heavy because of the photos in it, shrinking the images before inserting them keeps the file lighter too.

Percent or width: which to use

'Percent (%)' scales relative to the original size. The default is 50%, which turns a 4000×3000 photo into 2000×1500. Use it when your photos are different sizes but you want to shrink them all by the same proportion.

'Width (px)' sets the output width directly. The default is 1280px: larger images are scaled down and smaller ones are scaled up. Use it when every image needs exactly the same width.

Images saved as JPG use quality 92, aimed at changing the size while keeping quality as high as practical. If you also want a much smaller file, run the results through 'Compress Image' afterwards.

How it compares to other options

Windows Paint or your phone's photo editor can resize too, but usually one image at a time — open, resize, save, repeat. Here the same setting is applied to every image at once, and you can grab them all in a single ZIP.

Design software offers fine control, but when all you need is a new size, dropping files here is quicker than opening a full editor.

Things to keep in mind

You can't set the height or an exact width × height (say, 1080×1080). If you need a different shape, such as a square, crop it first with 'Crop Image', then resize here.

Formats like GIF and BMP are saved as JPG, and animated GIFs keep only their first frame. When saving as JPG, transparent areas are filled with white.

Enlarging small images makes them look soft. If you really need a bigger version, try 'AI Image Upscaler', which uses AI to clean up edges as it enlarges.

Resized images don't include photo metadata (EXIF) such as capture date or location. Keep your originals.

How to use

  1. Choose to scale by percentage or set a width in pixels.
  2. Drop your photos — height adjusts automatically to keep the aspect ratio.
  3. Download one by one or use 'Download all'.

FAQ

Will my photos get stretched?

No. The aspect ratio is always preserved.

Can I make many images the same width?

Yes. Choose 'Width (px)' and every image gets the same width.

Are my images uploaded?

No. Everything happens in your browser.

Can I enlarge small images?

Values above 100% will enlarge them, but no new detail is created, so they may look soft.

Can I resize to a specific height?

Only percent and width are available right now. To hit a particular height, work out 'target height ÷ original height × 100' and enter that as the percentage. For example, 33% on a photo 3000px tall gives a height of 990px.

Does it change the DPI?

This tool only changes the number of pixels. There's no setting for print DPI, so set the print size in the program you print from.

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