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Secure local processing — files stay in your browser
Resize Image — free online tool
Change an image's dimensions to an exact width or height. Leave one side blank to keep the original aspect ratio. It runs entirely in your browser — your files never leave your device, and it's completely free with no signup.
- Resize by width, height, or both
- Keeps aspect ratio automatically
- Free and private — runs in your browser
How to resize image
- 1Upload the image you want to resize.
- 2Enter a width and/or height in pixels.
- 3Click Resize Image and download the result.
Frequently asked questions
How do I keep the proportions?
Enter only a width (or only a height) and the other side is calculated automatically.
Does it keep the original format?
Yes — a PNG stays a PNG, a JPG stays a JPG, and transparency is preserved for PNG/WebP.
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