Free Image Resizer
Resize images to exact pixel dimensions or percentage scale.
Resize images to exact pixel dimensions or percentage scale. Part of our Image Tools collection on Free Quick Tools. Built for speed and privacy, with no account required for everyday use.
How to use Image Resizer
- Upload an image.
- Enter width and height, or use percentage.
- Optionally lock aspect ratio.
- Download the resized image.
Features
- Exact pixel resize
- Aspect ratio lock
- Percentage scaling
- Browser-side
Why use this tool
- Resize photos to exact pixels or a percentage scale.
- Lock aspect ratio so portraits and logos do not stretch.
- Process JPG, PNG, and WebP privately in the browser.
Common use cases
- Fit images to CMS maximum dimensions
- Downscale camera photos for email attachments
- Prepare consistent thumbnail sizes for a gallery
What is Image Resizer?
Image Resizer is a free online tool on Free Quick Tools. Resize images to exact pixel dimensions or percentage scale. Processing stays in your browser whenever this tool runs locally. Supported formats: JPG, PNG, WebP.
Supported formats
JPG, PNG, WebP
Privacy
Your files never leave your device. All processing happens in your browser.
Frequently Asked Questions
Can I keep the aspect ratio?
Yes. Enable aspect ratio lock so height updates automatically when you change width.
Does upsizing add real detail?
Enlarging increases pixel dimensions but cannot invent lost detail. Prefer resizing down from a larger original.
Are images uploaded?
No. Resizing runs in your browser.
Related guides
Step-by-step help that pairs with this tool.
- How to Compress Images Without Losing Quality
Practical tips for shrinking JPG, PNG and WebP files while keeping photos sharp enough for web, email and social.
- How to Resize Images for the Web
Choose the right pixel dimensions for blogs, heroes and thumbnails, then resize photos without installing software.
- Passport Photo Requirements Overview
General guidance for passport and visa photos — size, background and framing — plus a clear disclaimer to verify official rules.
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