AI Image Enhancer — Free Online

The ESRGAN neural network was trained on millions of image pairs, so it has learned what edges, textures, hair, bricks, foliage and text usually look like at high resolution. When it upscales, it doesn't stretch your pixels — it re-draws the image bigger, plausibly reconstructing the fine detail that the small image hints at.

Use 2x for photos that are already a few hundred pixels wide (fastest, most faithful). Use 4x for tiny images under ~300px — profile pictures, old thumbnails, game sprites — where you need serious size. 4x takes roughly four times longer than 2x.

It significantly improves them, but no AI can recover information that truly isn't in the file. A face that is 8 pixels wide will come back plausible, not provably identical to the real person. Results are best when the subject is at least ~64–128px in the source. Treat the output as an enhanced reconstruction, perfect for sharing, printing small, and design work.

The neural network runs entirely on your own GPU/CPU inside this browser tab, processing the image in small patches with live progress. No server is involved, which is exactly why we can offer unlimited free HD enhancement while server-based sites charge credits. Larger inputs take longer; lower the input cap (768px) on phones.

AI Upscale (ESRGAN) invents realistic new detail — dramatically better for pixelated sources. Fast Enhance uses premium multi-step scaling plus sharpening: instant and reliable on any device, and great when your image is merely a bit small or soft rather than truly pixelated.

Yes — screenshots, old family scans, WhatsApp-compressed photos and downloaded thumbnails are the most popular inputs. For badly compressed JPGs, add 20–40% denoise before sharpening to melt away blocky compression artefacts.