Hub AI Image Upscaler
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AI Image Upscaler

Upscale low-resolution images to 4K using Lanczos, Bicubic, or AI-enhanced algorithms. Runs entirely in your browser.

BETA This tool is in beta — the AI super-resolution model is experimental and may not always produce the desired results. The fast Lanczos mode is the reliable default.

Drop your image here

Drag & drop, paste, or

Low-res photos Screenshots Icons Pixel art Any image

JPG · PNG · WebP · BMP · Any resolution

How to use
  1. Drop an image onto the upload zone or click to browse — JPEG, PNG, WebP, BMP, etc.
  2. Pick an algorithm and target size, then tune sharpness, contrast and noise reduction.
  3. Click "Upscale Now" to process, then "Download" to save in your chosen format.
FAQ

AI Super-Resolution uses an ESRGAN neural network to reconstruct detail — best for photos (the model downloads once on first use). Lanczos is highest fidelity but slower. Bicubic is fast and smooth. Pixel Art uses nearest-neighbour to keep sprite edges crisp.

You're limited only by your browser's canvas memory. On most desktops 8K output works; mobile devices may struggle past 4K with heavy sharpening.

No. Every pixel is processed locally via HTML5 Canvas — nothing leaves your device.