VideoUpscaler.dev
Private 2x video upscaling in your browser
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VideoUpscaler.dev is a free browser tool for creators who want to test a 2x upscale of a short MP4/H.264 clip without uploading the source footage or installing desktop software. In a compatible desktop Chromium browser, WebGPU and WebCodecs run an Anime4K CNN model locally.
It provides a before-and-after preview and MP4 export. Processing speed and stability depend on browser support, local GPU capability, source resolution, and clip length.