Image Resizer
Resize to any size instantly. Lock aspect ratio to keep proportions perfect.
Drop your image here, or click to browse
Supports PNG, JPG, WebP, GIF, up to 20 MB
Need more than image editing?
Open the full Portplate editor: templates, text, shapes, export to PDF and more.
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What is an Image Resizer?
An online image resizer lets you change the dimensions of any photo or graphic instantly in your browser. Whether you need to resize an image for social media, email attachments, websites, or print, you can set exact pixel dimensions or scale by percentage, with no software installation required.
How to use the Image Resizer
- 1Upload your image by dragging it onto the page or clicking Browse
- 2Enter your target width and height in pixels, or choose a percentage scale. Toggle the lock icon to maintain the original aspect ratio.
- 3Click Apply and download your resized image instantly as PNG or JPG.
When to use it
- โResize photos for Instagram, Facebook, or Twitter
- โShrink images before uploading to a website
- โPrepare print-ready images at exact DPI
- โReduce image dimensions for faster email attachments
- โMatch a required image size for a form or upload field
Frequently asked questions
Can I resize without losing quality?
Enlarging an image beyond its original resolution will reduce sharpness. For best results, resize down rather than up, and always keep a copy of the original.
What image formats are supported?
You can upload PNG, JPG, JPEG, WebP, and GIF files. The output is downloaded as PNG or JPG depending on your preference.
Is my image uploaded to a server?
No. All resizing happens entirely in your browser using the Canvas API. Your image never leaves your device.
Can I resize multiple images at once?
This tool resizes one image at a time. For batch resizing, try the full Portplate editor which supports multi-page exports.
What's the maximum file size?
The tool accepts images up to 20 MB. For very large files, the browser may take a moment to process.