Hei IO

Hei IO is an AI-powered toolkit designed to streamline captioning and multilingual dubbing for video content. Its primary purpose is to help creators, businesses, and educators automatically generate accurate subtitles and voice-overs in over 140 languages, including English, German, French, and Spanish. By automating these workflows, Hei IO enables users to make their content accessible to global audiences without extensive manual editing or specialized audio expertise.

Hei IO offers automatic speech recognition to generate time-synced captions, which can be edited directly in the platform before export. Its AI dubbing engine can produce natural-sounding voice-overs in multiple languages, often preserving timing and pacing to match the original video. Users can select from different AI voices, adjust parameters such as speed and tone where available, and generate multilingual versions of the same video in a single workflow. The platform typically supports common video formats and integrates export options suitable for social media, learning platforms, and marketing channels.