Image Resizer
Resize an image to exact dimensions, entirely in your browser.
Resized with the Canvas API, entirely in your browser — your image is never uploaded anywhere.
What is Image Resizer?
Upload an image and resize it to specific pixel dimensions by typing a new width or height, with an optional locked aspect ratio so the other dimension updates automatically, then download the result — all processed locally with the Canvas API. You can upload any common image format your browser can decode (PNG, JPG, WEBP, and more), and the resized result downloads as a PNG. This is handy for quickly shrinking a screenshot before attaching it somewhere with a size limit, or fitting an image to specific dimensions for a layout, without opening an image editor.
FAQ
No — resizing happens entirely in your browser using the Canvas API; your image is never sent to a server.
Any format your browser can display as an image, including PNG, JPG, and WEBP. The resized download is always saved as a PNG.
When enabled, changing the width automatically recalculates the height (and vice versa) to keep the original image's proportions, preventing stretching or squashing.