Image resizer

Resize an image to exact pixel dimensions or keep its original proportions.

On your device · No account

Privacy details

Image resizer processes your input in this browser. Inputs and results are excluded from analytics. Recent tools save tool names, visit counts and last-visit times. Saved tools store only their names. Draft saving is optional and stays on this device; delete saved text with the draft controls. Loading text from a URL is optional and contacts that server; its URL and your IP address are visible to the server. An optional “Use in” action keeps a handoff in this tab. The next tool removes it on arrival and ignores it if more than a minute has passed.

Copy link includes the inputs you choose to share in the address. Anyone with that link can reopen them. Files and generated results are excluded. Password and key tools share settings only.

Choose an image

Width (pixels)

Height and proportions

Keep proportions

Height when unlocked (pixels)

Your preview

Preparing preview…

Reset reloads the tool with its starting values and releases open files and device controls. Saved drafts stay on this device until you delete them.

Links include your inputs and settings. Anyone with the link can see them, so leave out private text. Files and generated results are left out; random draws run again.

Keyboard shortcuts

Updated 2026-09-20

Resize with the right proportions

Set a width and keep proportions to calculate the matching height. Turn proportions off only when you deliberately want to stretch the picture. The downloaded file uses the dimensions shown beside the preview.

Next: Color picker from image

A worked example

Resizing the 640 × 360 example to a width of 320 pixels while keeping proportions produces 320 × 180 pixels.

Before you use the result

PNG, JPEG and WebP inputs are decoded by your browser. Animated files use their first frame. Color profiles can affect displayed colors; exports are rendered pixels, not the original metadata.

Cite this page

Citation style

ToolOctopus. “Image resizer.” Updated 2026-09-20. https://tooloctopus.com/image-resizer.

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