CaptionCreator is an AI-powered tool that automatically generates subtitles from video or audio files. It supports transcription of speech into text in 50+ languages, as well as translation of any supported language into English subtitles. The service is designed to be fast, processing even long videos in under three minutes, and handles challenging audio with background noise, multiple speakers, and diverse accents. Users can upload common media formats up to 2GB, select input language or auto-detect, and download results as subtitle files or plain text. CaptionCreator is used by over 3000 users including notable organizations and individual content creators. The pay-as-you-go credit system avoids subscriptions, and a free tier is available for short files.