Upscale Image Online
Enlarge photos by 2x and 4x with sharp edges using high-fidelity multi-pass interpolation and unsharp masking. 100% deterministic, zero AI hallucinations.
Drop image here to upscale
Enhance resolution 2x or 4x with bicubic filtering and unsharp masking
How to use Upscale IMAGE.
Three simple steps. No software to install.
Upload Image
Select the picture or artwork you want to enlarge.
Choose Scale Factor
Pick 2x (Double) or 4x (Quadruple) and set sharpening strength.
Download High-Res Image
Click Upscale to render and download your crisp, high-resolution photo.
Built for speed and privacy.
Multi-Pass Progressive Upsampling
Enlarges photos in balanced 2x and 4x passes to preserve high-frequency details without pixelation.
Hardware-Accelerated Unsharp Mask
Applies mathematical edge-sharpening convolution kernels to maintain crisp contours.
Zero AI Hallucinations
Authentic pixels: never invents fake faces, distorted text, or blurry AI artifacts.
Instant In-Browser Speed
Processed directly by your GPU and CPU without waiting in long cloud queue lines.
Supported formats
Works with all modern image formats.
Frequently asked questions
AI models often hallucinate fake textures, garble text, and alter faces. Picora uses pure bicubic resampling and unsharp masking, preserving your image's authentic pixels.
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