Image Resize — Change Width and Height Precisely
Resize any JPG, PNG or WebP image to exact pixel dimensions. Set a width and let the height follow the aspect ratio, or set both to force a specific size. Runs entirely in your browser — the image never leaves your device.
Keep aspect ratio or force size
Lock the ratio to avoid distortion (common when preparing content for a specific column width). Unlock to fit exactly — useful for thumbnails and grid tiles where every image must be the same size.
Best practice: shrink, don't enlarge
Making an image smaller preserves quality. Making it larger interpolates missing pixels and looks blurry — use Image Upscale for smarter enlargement.
Frequently Asked Questions
What formats can I resize?
JPG, PNG, WebP, GIF and BMP go in; JPG or PNG come out depending on the source. Convert first if you need a specific output format.
Will resizing reduce file size?
Yes, smaller dimensions produce smaller files. For further reduction at the same size, use Image Compress.
Is there a maximum size?
The browser limits canvas dimensions — around 16000×16000 in most browsers. Huge scans should be handled in desktop software.