Show HN: Subtitio – AI powered subtitle translation (API available) (subtitio.ai)

I built Subtitio after hours of frustration searching for subtitles in my language.

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Subtitio.ai is an AI service that translates SRT subtitle files into 50+ languages while preserving all timestamps and structure.

# Key features - Keeps timing/cues/timestamps intact - 50+ language support - Async processing (upload → translate → download) - Parallel processing of multiple files - API available with OpenAPI/ReDoc schema for integration

# API availability - Designed for automation pipelines, batch jobs or app integrations - OpenAPI spec - ReDoc docs and JSON schema describing request/response format

# Use cases - Creators localizing video captions at scale - Education and training videos requiring multilingual SRT - Teams needing a lightweight programmatic alternative - Apps that must translate subtitles without invalidating timing

# Differentiator - Built with timestamp safety first, translations never modify cue timing or corrupt the SRT structure, ensuring downstream compatibility with editors, players, and pipelines.

# Drawbacks - Support for SRT files only

Feedback welcome and happy to answer questions.