How to Upsize Images Online
Easily increase your image dimensions while maintaining perfect proportions. Simply specify your desired width or height, and the tool will automatically calculate the other dimension to preserve the aspect ratio.
Key Features
- Width or height-based upsizing
- Perfect aspect ratio preservation
- Smart quality enhancement
- Common size presets
- Free to use
Frequently Asked Questions
How does proportional upsizing work?
Enter either a target width or height, and the tool automatically calculates the other dimension to maintain the original image proportions.
What's the maximum size limit?
You can upsize images up to 10000 pixels in either dimension, though we recommend staying within reasonable limits for best quality.
What's the difference between Upsize and Upscale?
Upsize focuses on changing dimensions proportionally based on target width/height, while Upscale uses percentage-based enlargement with enhancement algorithms.
What image formats are supported?
Our tool works with all common formats including JPG, PNG, WebP, and GIF.
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