Resize Image Online
This free image resizer changes an image to the exact dimensions you need — a 1200×630 social card, a 300×300 avatar, a 1920-pixel-wide hero image — without installing software or creating an account. Type a width and height, lock the aspect ratio if you want proportions preserved, and pick how the image fits: stretch, fit inside with letterboxing, or fill and crop.
Everything happens in your browser. The file is decoded locally, resized with high-quality resampling, and re-encoded in the format you choose — nothing is uploaded, so even confidential screenshots and unreleased product photos stay on your device.
Drop an image to resize
JPG, PNG, WebP, AVIF, GIF, BMP, TIFF, HEIC or SVG — processed locally, never uploaded · You can also paste from the clipboard
How to image Resizer
- Drop an image onto the uploader (or click to browse, or paste from the clipboard).
- Enter the target width and height in pixels — with the lock on, one value updates the other automatically.
- Choose a fit mode if both dimensions are set, and an output format and quality.
- Press Resize and check the real result dimensions and file size.
- Download the resized image.
Frequently asked questions
Can I resize without distorting the image?
Yes — keep the aspect-ratio lock on, or use "Fit inside" mode: the whole image scales proportionally and any empty space becomes letterboxing (transparent, or a colour you pick for JPG). "Fill & crop" also preserves proportions by cropping the overflow.
What happens when I enlarge an image?
The resizer will make the canvas bigger, but it cannot invent detail that was never captured — enlarged photos look softer. For best results, start from the largest original you have.
Does resizing preserve an animated GIF?
Yes. When you load an animated GIF and keep GIF output with "Keep animation" on, every frame is resized and the animation is re-encoded with its original timing.