Free Online Image Upscaler (RealCUGAN)
Free online image upscaler with 2×/3× enlargement. Uses RealCUGAN (WASM local CPU) when available, otherwise falls back to high-quality resize.
Image upscaler: uses RealCUGAN (WebAssembly, local CPU) when available (no uploads). If unsupported, it falls back to high-quality resize.
支持拖拽新图片到此区域直接替换
Cross-Origin Isolation required (COOP/COEP)
RealCUGAN (threads) requires SharedArrayBuffer. Open under Cross-Origin Isolation (set COOP/COEP response headers). Otherwise switch to “High-quality resize”.
Note
AI upscaling can be CPU- and memory-intensive. Desktop browsers are recommended. Everything runs locally with no uploads.
AI engine: RealCUGAN-ncnn-webassembly (MIT)
Original
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Output
No output yet