Upscale any image 2x to 8x with AI — completely free and unlimited. No login, no sign-up, no tokens, no credits, no watermark. For real.
1. Select an image — drag & drop it, click the box to browse, or paste it with Ctrl+V.
2. Choose how many times to enlarge it: 2x, 3x, 4x, 5x, 6x, 7x or 8x.
3. Wait while the AI increases the resolution on your device, then the PNG downloads automatically.
The upscaler uses a model tuned for anime, manga, illustrations and AI-generated art — photos work too, with a smooth painterly finish. Because the processing is local, it is completely private and there is nothing to pay for.
This upscaler is made by the same single developer behind Hentai Generator — a free, unlimited AI image generator with no login and no token system. The best way to support this page is to try the generator and create your own AI images, or to become a supporter.
🎨 Generate AI Images FreeYes. You can upscale as many images as you want, with no login, no sign-up, no tokens, no credits, no daily caps and no watermark. The page is supported by ads and by the main Hentai Generator project.
No. The AI runs 100% locally in your browser using WebGPU or WebAssembly. Your image never leaves your device, which also means you can safely upscale private or NSFW images.
The tool runs directly on your device. The first time you use it, a small AI model (2.5–18 MB) is downloaded and cached by your browser; after that it loads instantly. The image is processed in tiles, so even large images work without freezing the page.
Because everything is computed on your own hardware instead of a server. On a computer with a GPU (WebGPU) an upscale takes seconds. On older devices it falls back to CPU (WebAssembly) and can take a few minutes. The page stays responsive either way.
You can enlarge an image 2x, 3x, 4x, 5x, 6x, 7x or 8x. Very large inputs are automatically resized first so the final image stays within your browser's canvas limits (up to 8192 pixels per side on desktop).
The models are tuned for anime, manga, illustrations and AI-generated art, where results are excellent. Photos also work, but come out with a smooth, painterly look rather than photorealistic detail.
No watermark, ever. The result is saved as a lossless PNG file.
Yes — this upscaler is a free tool from Hentai Generator, a free unlimited AI image generator with no login and no token system. Visit the home page to generate anime and hentai images from text prompts, check the tutorial or browse examples.