Mitsuko

Mitsuko is an AI-powered subtitle translation tool designed for content creators, translators, and studios working with video subtitles. It translates multiple subtitle files in batch while preserving character names, tone, and narrative context across episodes. The platform supports transcription from audio files in over 100 languages and integrates frontier AI models including Gemini, Claude, Grok, and OpenAI.

Key features include context extraction to maintain consistency across scenes, tonal alignment with character speech patterns, and cultural adaptation for idiomatic expressions. Users can provide custom instructions to guide translations and control subtitle timing. The maker says it was built with Lovable.