supertranslate is an AI tool that allows users to automatically add English subtitles to videos of any language. It uses OpenAI-Whisper, a state-of-the-art speech-to-text engine, to provide high-quality subtitle generation. Users can easily upload their videos, generate subtitles, and download them in popular subtitle file formats. The tool also includes a user-friendly subtitle editor with features such as splitting, merging, and adjusting timecodes. With the option to start for free and no requirement for a credit card, supertranslate offers a quick and convenient solution for subtitling videos. Potential applications for this tool could include language learning, accessibility in video content, and enhancing video communication across different languages.