Video2X

Video2X is a free AI video upscaler that works entirely in your browser. You upload a video file — MP4, MOV, AVI, MKV, and others — and the tool uses a neural network to double its resolution. A 720p clip becomes 1440p, with real detail reconstruction rather than simple pixel stretching. There is no software to install, no account to create, and no watermark on the output. The whole process happens locally on your device, so your video never leaves your computer.

The tool runs AI models through WebGPU, tapping into your graphics hardware without requiring separate GPU drivers or CUDA setup. You choose from three upscaling networks: Small (fastest), Medium (balanced), and Large (sharpest detail). Video2X previews the first frame so you can compare before committing. It processes frames one at a time in a memory-efficient pipeline, which keeps even longer videos from crashing your browser. Audio passes through untouched — no re-encoding of dialogue, music, or effects. The final file uses your browser's built-in hardware encoder to stay sharp.

Video2X is ideal for anyone who wants to improve video quality without dealing with command-line tools, Python environments, or expensive software. Content creators can upscale old footage, archivists can breathe new life into low-resolution clips, and casual users can sharpen home videos — all from a browser tab. It works on Mac, Windows, and Linux, and supports Chrome, Edge, Opera, Safari, and Firefox. The main limitation is that the free browser version can only handle videos your browser can play natively.