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Resize Image
Resize images to exact dimensions. Lock aspect ratio. High-quality resampling with pica.
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How it works
OpenToola uses pica for high-quality Lanczos resampling. Set width/height and optionally lock aspect ratio.
Steps
- Select an image.
- Set width and height.
- Toggle aspect ratio lock.
- Click Resize and download.
Frequently asked questions
What is Lanczos resampling?
A high-quality scaling algorithm that preserves sharpness.
Can I keep aspect ratio?
Yes, check "Lock aspect" and set one dimension.
Processed locally — your files never leave your browser.