Image
Change Image Dimensions Online
- Browser-based
- No signup
- Stays on your device
- Your file is processed in your browser and is not uploaded to our servers.
Change image dimensions online for portals, ads, and templates with strict size rules. Upload your photo, enter new width and height, and download the resized file.
Portals often specify exact pixels—check requirements before resizing.
Crop first when aspect ratio differs from the target slot.
100% Client-Side
Your data never leaves your computer.
How to use this tool
Upload the image, enter target dimensions, preview if available, and download the resized result.
Worked example
Example: change a LinkedIn headshot from 2000×2000 to 800×800 for avatar upload requirements.
When to use this
- Avatar and profile photo uploads.
- Ad creative size specifications.
- Thumbnail generation for video platforms.
Common examples
- 4000×3000 phone photo → 1200×900 for a blog content column at 2× retina width.
- LinkedIn headshot 2000×2000 → 800×800 avatar export.
- Banner 2400×800 → 1200×400 for faster email newsletter load times.
- 3000×2000 blog hero → 1600×1067 for faster LCP while keeping 3:2 ratio.
- Square logo 1024×1024 → 256×256 favicon source before Favicon Generator.
What people search for
- resize image
- scale image online
- change image dimensions
- resize photo for web
- image resizer pixels
Common mistakes
- Squashing images to fit without cropping.
- Using wrong units—most web specs are pixels, not inches.
- Resizing once without keeping the original master.
Related long-tail tasks
- change dimensions for youtube thumbnail
- resize to exact pixel requirements
- crop then change dimensions
How it works
Upload a JPG, PNG, WebP, or GIF image, choose new dimensions or a scale percentage, and download the resized file. Aspect ratio can be locked, and you can keep the original format or export as JPG, PNG, or WebP. Resizing runs entirely in your browser—files are not uploaded to a server.
Limitations
Upscaling cannot recover detail that was not in the original image. Extreme aspect-ratio changes may crop or distort if not constrained.
Privacy and file handling
Your data is processed in your browser and is not uploaded to our server.
Related Resize Image guides
These pages use the same resize image with guides tailored to specific search intents.
Frequently asked questions
Can I change only width?
Yes—lock aspect ratio to auto-calculate height, or set both manually.
Will DPI metadata change?
Pixel dimensions change; DPI tags may update depending on export settings.
Is resizing private?
Standard browser resizing processes locally without storing your images.
Related tools
Related pages
- Browse all free online tools on Utilnivo
- Explore more image tools on Utilnivo
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- Remove Background — Remove image backgrounds on-device (first run downloads a model from a CDN).
- Blur Image — Apply blur effects to images.
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