VideoUpscaler.dev gives creators a private way to test 2x enlargement on short MP4/H.264 clips before sharing or publishing them. In compatible desktop Chromium browsers, WebGPU and WebCodecs run an Anime4K CNN on the user’s device, keeping source footage off remote servers. Users can preview and export the result for free without creating a product account. Browser support, GPU capability, source resolution, and clip length affect processing time and stability.
