UtilityBaseImage Tools
Image Resizer
Resize images to exact pixels — right in your browser, nothing uploaded.
Updated February 2, 2026
How to use the image resizer
- 1Choose or drop an image file.
- 2Enter a target width or height (aspect lock keeps proportions).
- 3Pick an output format.
- 4Click Resize & Download.
Common uses
- Meet exact pixel requirements for profile photos and forms.
- Shrink large camera photos before emailing.
- Produce multiple sizes of an asset for a website.
Frequently asked questions
Is my image uploaded to a server?
No. The image is read and resized locally using your browser's canvas. It never leaves your device, and the resized file downloads directly from your browser.
Will enlarging an image reduce quality?
Enlarging can't add detail — the browser interpolates pixels, so upscaled images look progressively softer. Downscaling generally looks clean.
How do I keep the proportions correct?
Leave the aspect ratio lock on. When you type a width, the height updates automatically (and vice versa), so the image never stretches.
Which output format should I choose?
JPEG for photos (small files), PNG for graphics that need transparency or crisp edges, WebP for the best size-to-quality ratio where it's accepted.
About this tool
The image resizer changes an image's pixel dimensions entirely inside your browser using the canvas API — your photo never leaves your device. Set an exact width or height (the other dimension follows automatically when the aspect lock is on), or enter both to force specific dimensions. It's built for the everyday cases: profile pictures with size requirements, form uploads with pixel limits, and shrinking camera photos before emailing them. Save the result as JPEG, PNG, or WebP.
Like everything on UtilityBase, the image resizer runs entirely in your browser — nothing you enter is uploaded or stored on a server. It's free to use with no account required. Browse more image tools here.
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