Image Tools

Resize Image Online — Free

Resize by exact dimensions, percentage, or bounding box. No account needed.

Drop an image here

or click to browse · max 20 MB · JPG, PNG, WEBP, AVIF, BMP, TIFF, HEIC, ICO

Frequently asked questions

Is the Resize Image tool free?

Yes — completely free with no account required. No watermarks are added to your resized files.

What image formats are supported?

Resize Image supports JPG, PNG, WEBP, AVIF, BMP, TIFF, HEIC, and ICO formats for both input and output.

What does aspect ratio lock do?

When locked (the default in Dimensions mode), changing the width automatically recalculates the height to preserve proportions, and vice versa. Unlock to set arbitrary dimensions.

What is Fit within box?

Fit within box scales the image so it fits inside your maximum width and height without cropping. The aspect ratio is preserved and neither dimension will exceed the box you set.

Are my images stored after resizing?

Resized files are held on the server only long enough for you to download them, then automatically deleted.

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The AT USE Image Resizer handles the three most common resize needs in one tool. Exact pixel dimensions with optional aspect-ratio lock for when you have a hard pixel cap. Percentage mode — with 25%, 50%, and 75% quick-picks — for a fast halve or quarter. Fit within box for responsive use: the image scales to fit inside your maximum width and height without cropping or stretching. Output format is independent of the resize operation — downsize a PNG and export it as WEBP in one step.

Common use cases