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ToolSuite
Image Tools

Bulk Image Resizer

Resize up to 30 images at once to fit inside a maximum width and height.

or drag them here

image/* · up to 40 MB · up to 30 files

85

Lower means a smaller file. Above 90 rarely looks different and costs a lot of size.

Processed in your browser

Fill in the form and press “Resize all images” to see the result here.

How to use it

  1. 1Select your image, or drag and drop it onto the upload area.
  2. 2Adjust the options if you need something other than the defaults.
  3. 3Press the button. The image is processed on your device - nothing is uploaded.
  4. 4Download the result, or drop in another file to do it again.

About the Bulk Image Resizer

Each image is scaled to fit inside the box while keeping its own aspect ratio, and images already smaller than the box are left alone rather than being enlarged.

Every file is processed on your device in turn. Thirty large photographs will take a few seconds and will not touch a server.

Questions people ask

Is my image uploaded anywhere?

No. The image is decoded, processed and re-encoded by your own browser using the canvas API. You can watch the network panel while it runs, or disconnect from the internet after the page loads - the tool keeps working.

Why is there a limit of 30 files?

Each image is decoded into memory to be processed. Thirty is a comfortable ceiling on ordinary hardware; beyond that a browser tab starts to struggle, so the limit is there to stop the page freezing.

Is your image uploaded to a server?

No. This tool runs entirely in your browser using standard web APIs, so your image never leaves your device. You can confirm it by opening your browser's network panel while the tool runs, or by disconnecting from the internet after the page has loaded.

Is it free, and do I need an account?

Yes, it is free, and there is no account, no sign-up and no watermark on the result. The project is funded by optional donations.