Frequently Asked Questions
Is this tool free to use?
Yes, 100% free with no hidden charges and no usage limits.
Are my images uploaded?
No. All processing happens entirely in your browser. Your images never leave your device.
What scale factors are supported?
2x, 3x, and 4x upscaling. The image pixel dimensions increase but no new details are added.
Will the image become blurry?
Uses bicubic interpolation for better quality than simple stretching. However, it cannot add real detail like AI super-resolution.
What formats are supported?
PNG, JPG, WebP and other common formats. Output format matches the input format.
Is there a file size limit?
Recommended max 4000x4000 pixels and 50MB file size for optimal browser performance.