Welcome to MioSub

The AI subtitle editor that truly understands context — Make the world's content yours.

v3.0 Just Launched

Brand new AI translation engine — now with speaker extraction, smart glossary, and context-aware translation.

Project Renamed

This project was formerly known as Gemini-Subtitle-Pro and has been renamed to MioSub.

Why We Built MioSub

We believe language barriers shouldn't exist in a connected world.

But reality says otherwise:

Traditional subtitle tools are cold and mechanical — that's "machine translation," not "human understanding"
Hours wasted fixing line-by-line machine translations
Character names inconsistent — "John" becomes "Jon" becomes "Juan"
Timing always off, dialogue lagging behind the action

MioSub was born to change this.

We combined the speed of generative AI with the depth of context awareness. It doesn't just translate words — it understands the story. It turns "subtitling" from a tedious chore into a smooth creative flow.

Make the world's content yours.

Interface Preview

Demo Showcase

Type	Link	Description
🎙️ Voice Actor Radio	BV1XBrsBZE92	Japanese, 30 min, with speaker labels
🚃 Railway Vlog	BV1k1mgBJEEY	Japanese, 29 min, technical terminology
🎬 Movie Commentary	BV1MG6CBvEzd	PJSK movie easter eggs, fast Yukuri narration, many character/group/producer/song names

What Can MioSub Do?

Capability	Description
🧠 Context-Aware	Powered by Gemini's long context window — reads the entire video before translating
📚 Smart Glossary	Auto-extracts names, places, and terminology — keeps translations consistent
🌊 Waveform Sync	Built-in CTC forced alignment — millisecond precision for every line
🎨 WYSIWYG Editor	Edit and preview in real-time — as intuitive as writing a document
🚀 Fully Automated	Paste a link → auto-download → transcribe → translate → burn-in subtitles
🌍 Multi-Language	Chinese/English/Japanese UI, auto-detect source, translate to any target