Processing the image...

Professional Image Upscaler

Enlarge your small images to high resolution without losing colors or quality - with the real Lanczos algorithm plus sharpening and color enhancement. All processing happens in your browser with no internet or subscription.

العربية
Lanczos algorithm No color loss 100% local processing Completely free
Full privacy: Your images never leave your device. All upscaling and enhancement happen locally inside the browser, and no image is uploaded to any server.

Upload the image

Drag and drop the image here

Or click to choose from your device — supports JPG, PNG and WebP

Comparison & Result

Original
Original image
After upscaling & enhancement
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Scale ratio
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Total new pixels
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Processing time
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Output file size

How does it work?

1) Lanczos algorithm: one of the best resampling methods, it computes every new pixel from several neighboring pixels with precise mathematical weights, preserving edges, detail and colors. (The tool auto-tunes the kernel strength based on the image type to reduce jaggies in logos and text.)

2) Halo-free sharpening + local clarity: sharpening is applied only to the luminance channel with values clamped within the pixel neighborhood (Clamping), together with "local clarity" (Clarity) to bring out mid-level detail, so edges look sharp and natural with no halos or jaggies.

3) Professional colors: "smart vibrance" (Vibrance) detects dull colors and boosts them more within their own hue, while protecting already-saturated colors from being overdone — with control over saturation, contrast, brightness and color warmth.

4) Advanced auto-enhance: smart white balance (Gray-World) + automatic level stretching (Auto-levels) + vibrance + edge clarity, in a single click for the best result.

5) Live preview and the loupe: every change is applied to the image instantly without pressing a button, plus a magnifier loupe to inspect details up close before downloading.

6) PNG export: the lossless format guarantees that the resulting colors are saved exactly as you see them.

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