Resize Image Online Free
Resize JPG, PNG, WebP, and GIF images to exact pixel dimensions while keeping the aspect ratio.
Resizing an image to exact pixel dimensions is one of the most common tasks on the web — fitting an avatar, a banner, a thumbnail, or an upload limit. Media Manipulator resizes your image to the width and height you set while keeping the aspect ratio, so nothing looks stretched. Free, online, no signup.
Supported formats
Input formats
- JPG
- JPEG
- PNG
- WEBP
- GIF
Output formats
- JPG
- PNG
- WEBP
- GIF
- Leave one dimension blank to scale proportionally and keep the aspect ratio.
How to use it
Upload an image
Drop in any JPG, PNG, WebP, or GIF.
Set width / height
Enter a target width, height, or both.
Resize
ImageMagick scales the image to your dimensions.
Download
Save the resized image.
What this tool does
- Resizes JPG, PNG, WebP, and GIF images to exact pixel dimensions.
- Keeps the aspect ratio when you set only a width or only a height.
- Lets you keep the original format or switch it during the resize.
- Combines resize with quality control in a single pass.
Why it matters
- Platforms enforce specific dimensions for avatars, banners, and thumbnails.
- Smaller dimensions mean smaller files and faster page loads.
- Resizing before upload avoids the platform’s own lower-quality auto-resize.
Common use cases
Profile pictures
Resize to the exact avatar dimensions a platform requires.
Social banners
Hit the precise header/cover size for each network.
Thumbnails
Generate small, fast-loading preview images.
Upload limits
Shrink dimensions to get under a size cap.
Advanced details
- Set only width or only height and the other dimension scales proportionally to preserve aspect ratio.
- Set both width and height to force exact dimensions — useful when a platform requires a specific size.
- The image is auto-oriented from EXIF before resizing so the result matches the preview.
- Pair resizing with a lower quality on JPG/WebP output to shrink the file even more.
Why Media Manipulator
- Exact pixel control with aspect-ratio preservation built in.
- Resize and re-encode in one upload, with no watermarks.
- Free, no signup, uploads deleted within 24 hours.
Privacy & file handling
Your uploads are processed on our own servers and are designed to be automatically deleted within 24 hours. We do not share your files with third-party AI providers, and AI features run on a local GPU server we operate. No login or account is required.
Frequently asked questions
How do I resize an image online for free?
Upload your image, enter a target width and/or height in the resize fields, and click convert. The resized image downloads instantly. It is free with no signup.
How do I keep the aspect ratio when resizing?
Set only the width or only the height and leave the other field blank — the image scales proportionally so it never looks stretched.
Can I resize to exact dimensions?
Yes. Enter both a width and a height to force exact pixel dimensions, which is handy when a platform requires a specific size.
Will resizing change the file format?
No, the output keeps the original format by default. You can also pick a different format in the form if you want to convert at the same time.
Are my uploads private?
Yes. Files are processed on our own servers and deleted within 24 hours. No account is required.