Upscale Image – Free Online
Upload an image and enlarge it to 2x or 4x resolution. Uses bicubic interpolation for smooth results. All processing done in your browser.
ℹ️ Uses high-quality Bicubic interpolation and unsharp masking (not AI). Supports up to 4× upscaling.
Drop your image file here
Upload JPG, PNG, or WebP files
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Upscaled!
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Frequently Asked Questions
Q. How much can I upscale an image?
You can upscale to 2x or 4x the original size. Higher upscaling may show some quality reduction.
Q. What interpolation method is used?
The tool uses bicubic interpolation for smooth, high-quality upscaling results.
Q. Are files sent to a server?
No. All upscaling runs locally in your browser using the Canvas API.