Will resizing distort my image?

Not while the aspect ratio lock is on — the second dimension is calculated for you. Unlock it only when you deliberately want to stretch.

Can I upscale a small image?

You can, but interpolation cannot invent detail that was never captured, so the result will look soft.

What formats can I export to?

JPG, PNG and WebP, regardless of the format you uploaded.

Resize Image

Set exact pixel dimensions or start from a preset. The aspect ratio lock keeps your image from stretching.

Drop your file hereor click to browseAccepted formats: JPG, PNG, WebP

This tool runs entirely in your browser. Your file is never uploaded, transmitted or stored.

Supported formats: JPG, JPEG, PNG, WebP

How Resize Image works

1Upload the image you want to resize.
2Type a width or height, or pick a preset size.
3Keep the aspect ratio locked to avoid distortion.
4Choose the output format and download.

Why use this tool

Presets for common thumbnail, social and avatar sizes.
Locked ratio auto-fills the second dimension as you type.
Export to a different format in the same step.

Privacy & limitations

Resize Image runs entirely inside your browser using the File, Canvas and Web Worker APIs. Your file is never uploaded to a server, never stored, and never logged. Closing the tab removes everything from memory.

Enlarging beyond the original resolution cannot add real detail.
Extreme downscales are done in one pass and may soften fine text.