📌 Overview

Resize a JPG/PNG/WEBP image to a target width or height. Processing is done locally with the Canvas API — your photo never leaves the device.

🖼️ Image Resizer

Resize a JPG/PNG/WEBP image to a target width or height. Processing is done locally with the Canvas API — your photo never leaves the device.

Choose image

Width (px, blank = auto)

Height (px, blank = auto)

Output format

JPG/WEBP quality

🔒 All processing happens in your browser. No data is uploaded to any server.

Is my image uploaded?

No. The file is read and processed entirely in your browser via the Canvas API. Nothing is sent to a server.

What formats are supported?

Input: most browsers accept JPG, PNG and WEBP. Output is PNG by default to avoid quality loss; you can switch to JPG.

Will resizing reduce quality?

Downscaling generally looks good. Upscaling beyond the original size can look blurry because no new detail is invented.

Are images uploaded?

No. Files are read and processed locally in your browser via the Canvas API and are never sent to a server.

Which formats are supported?

Inputs usually support JPG, PNG, and WEBP; output defaults to PNG to avoid quality loss, with JPG also available.

📧

Shrink attachments.

🌐

Optimise for speed.

📱

Fit upload limits.

Read the image file, draw it on a Canvas at the target size, then export as an image. The whole flow happens in your browser, so it is private.

Fill in only the width and the height is calculated proportionally.

Shrinking images for the web noticeably speeds up pages.

Enlarging beyond the original size gets blurry.

Images are not uploaded; processing is local.