Hello8 is a professional subtitling and video localization platform that combines advanced AI with human refinement. It offers automated transcription, translation, and subtitle generation in over 90 languages, with a focus on quality through an AI reviewer that catches errors in grammar, conjugation, translation, hesitation, glossary, and punctuation. The platform validates subtitles against eight quality criteria: right duration, text, segmentation, rules, translation, speaker ID, styling, and sync. It is used by documentary filmmakers, corporate training teams, video agencies, and museums and cultural institutions. Hello8 is GDPR-compliant, offers end-to-end encryption, is hosted entirely in Europe, and is a member of the Coalition for Content Provenance and Authenticity (C2PA).