Resize Image Online — Free Tool

Set the exact pixel width and height you need, and imgic resizes your image in milliseconds. An optional aspect-ratio lock keeps proportions intact when you change one dimension, or unlock it to stretch and distort freely. The tool handles PNG, JPG, WebP, and AVIF inputs, and your resized file downloads with the new dimensions baked into the filename.

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Why use this tool?

Enter your target width and height in pixels. With the aspect-ratio lock engaged, updating one value automatically recalculates the other so the image stays proportional. Toggle the lock off when you need non-uniform scaling for a specific layout. All processing happens inside your browser through native Web APIs, which means your images are never uploaded to a remote server and never leave your device. The downloaded file is named with the dimensions you entered, making it simple to keep track of multiple sizes.

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Frequently asked questions

Is the resize tool free to use?

Yes, it is entirely free. There are no usage caps, no required sign-up, and no watermarks on your output.

Is my file private and secure?

Completely. Your file is processed 100% inside your browser using the Web APIs built into your device. Nothing is uploaded to any server — imgic never sees, stores, or transmits your images. You can even use these tools offline once the page has loaded.

What does the aspect-ratio lock do?

When the lock is on, changing the width automatically updates the height (and vice versa) to preserve the original proportions. Turn it off to set width and height independently, which may stretch or compress the image.

Can I resize to dimensions larger than the original?

Yes. You can enter any pixel values, including dimensions larger than the source image. Keep in mind that upscaling beyond the original resolution may reduce perceived sharpness.

What file types are supported?

The tool accepts PNG, JPG, WebP, and AVIF images. You can also choose which format to export, so it doubles as a quick format converter.