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100% Client-Side • Images never leave your device

AI Image Upscaler — Enhance Any Photo

Enlarge AI-generated art and low-resolution photos with Real-ESRGAN super-resolution — 2× or 4×, with sharp detail instead of blur. The AI runs entirely in your browser, so your image is never uploaded.

Upscale factor

Real-ESRGAN AI runs on your device — your image is never uploaded. Larger images take longer.

Upscale your image 2×

Enlarge AI art or low-res photos with Real-ESRGAN — sharper detail, no blur.

or drop a file — PNG, JPG, WebP

Real AI upscaling, not just stretching

Standard resizing just spreads existing pixels over a larger area, which looks soft and blocky. Real-ESRGAN is a neural network trained to reconstruct realistic detail — edges, textures, and fine lines — as it enlarges. It's especially good on AI-generated images and illustrations. Everything runs on your device via ONNX Runtime Web; nothing is uploaded.

2× or 4× — pick for your use

Use 2× to gently sharpen and double resolution for web or social posts, or 4× when you need a large, print-ready result. Larger inputs at 4× use more memory and time, so start with 2× if you're on a phone. The result downloads as a lossless PNG.

FAQ

How does the AI upscaler work?+
It runs Real-ESRGAN, a neural network for image super-resolution, directly in your browser via ONNX Runtime. Upload an image, pick 2× or 4×, and it reconstructs detail and sharp edges — far better than plain stretching. Your image is never uploaded.
What's the difference between 2× and 4×?+
2× doubles each dimension (e.g. 600×600 → 1200×1200); 4× quadruples it (600×600 → 2400×2400). Use 4× for the most detail, 2× for faster results and smaller files.
Is there a file size or resolution limit?+
It runs on your device's memory, so very large images at 4× can be slow or hit memory limits. For big inputs, try 2× first. Most AI art and product photos upscale in a few seconds.
Is my image uploaded to a server?+
No. The AI model (~5MB) downloads to your browser once and runs locally. Your image never leaves your device.
What if the AI model can't load?+
If the model fails to load (e.g. offline), the tool automatically falls back to high-quality standard upscaling and tells you, so you always get a result.
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