Does the resizer preserve the aspect ratio?

Yes. You specify only the target width and the height is computed from each image's original proportions, ensuring nothing is distorted.

What formats are supported for upload?

Any image format your browser can decode — JPEG, PNG, WebP, GIF, BMP, and others. Output images are always exported as PNG to preserve quality.

Is there a limit on how many images I can resize?

There is no hard limit, but resizing many large images simultaneously may slow your browser. Batches of up to 50 images work well in practice.

Bulk Image Resizer

Resize multiple images to a target width while preserving aspect ratio. Preview and download each result.

Select Images

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FAQ

Does the resizer preserve the aspect ratio?: Yes. You specify only the target width and the height is computed from each image's original proportions, ensuring nothing is distorted.
What formats are supported for upload?: Any image format your browser can decode — JPEG, PNG, WebP, GIF, BMP, and others. Output images are always exported as PNG to preserve quality.
Is there a limit on how many images I can resize?: There is no hard limit, but resizing many large images simultaneously may slow your browser. Batches of up to 50 images work well in practice.

The Bulk Image Resizer lets you upload multiple images and resize them all to a specified target width. Height is calculated automatically from each image's original aspect ratio, so nothing gets distorted. A preview thumbnail and download link is generated for every image. Processing happens entirely in your browser using the Canvas API.