imagetoolbox

Bulk resize images

Drop a pile of images, set one width or percentage, and take the whole batch home as a zip.

  • Free
  • Runs on your device
  • No account
  • No limits

How to bulk resize images

  1. Drop any number of images in the box above.
  2. Set a target width or a percentage. Every image keeps its own aspect ratio.
  3. Pick an output format and download the zip.

About bulk resizing here

Every image is shrunk the same careful way the single resize tool uses, so quality stays high.

You can mix formats. HEIC photos, PNG screenshots and WebP files can all go in the same batch and come out matching.

Like everything on this site, this tool runs in your browser. Your image is never uploaded.

Common questions

Is the bulk resize tool free?

Yes, properly free. No paid tier, no trial, no watermark on the result and nothing to sign up for. Put as many files through it as you like, as often as you like.

Are my files uploaded to a server?

No. The bulk resize tool runs inside your browser, on your own machine, so your files never go anywhere. Big ones are fine too, up to whatever your browser can hold.

How do I resize many photos at once?

Drop the whole pile in together, set one width or one percentage, and every image is resized and packed into a single zip. There's no queue and no limit on how many you add, since the work happens on your own machine rather than on a server that has to ration it.

What happens if the photos are different shapes?

Each one keeps its own proportions. Setting a width means every image comes out that wide with its own height, so a portrait and a landscape photo stay the shapes they were and nothing is stretched or cropped. Use a percentage instead when you want everything reduced by the same amount rather than made the same width.

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Free to use, with no account and no limits. Everything runs in your browser, and your files never leave your device.