Translate subtitle files without rebuilding timing
TheSubAI translates subtitle files online with AI while preserving timestamps, subtitle order, and file structure so the translated subtitles remain usable immediately.
Translate subtitles online with AI
Upload your subtitle file, choose a target language, and download a well translated subtitle in minutes.
Step 1
Upload File
Drag & drop a file or click to upload
Supported formats: .srt, .vtt, .sub, .sbv
Step 2
Settings
Formality
Default. Decides line by line from how the speakers relate. It is an automatic guess and can get the register wrong - pick Formal or Informal when it has to be consistent.
Step 3
Translate
Step 4
Download
Beyond Literal Translation
Standard translators just swap words. Our AI analyzes context, tone, and timing to deliver human-quality subtitles.
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Context & Tone Analysis
The AI detects the video's genre and emotional tone to choose the right words—distinguishing between formal speech and casual conversation.
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Slang & Idiom Recognition
No more awkward literal translations. Our engine understands internet slang, cultural references, and idioms, translating the meaning, not just the text.
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Smart Grammar & Gender
Automatically infers speaker gender and number to apply correct grammatical endings in complex languages like Spanish, French, or German.
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Timing & Format Preservation
Maintains the original reading speed. The AI rephrases long sentences to fit within the subtitle time slots without breaking the viewer's immersion.
AI Subtitle Translator for SRT, VTT & SUB Files
TheSubAI is an advanced AI subtitle translator designed to translate subtitle files accurately while preserving original timing and formatting. Whether you need to translate SRT files, convert VTT subtitles, or localize SUB subtitles, our tool delivers natural, context-aware translations in seconds.
Key benefits:
- Translate subtitles online instantly
- Keep original timestamps and line breaks
- Supports movies, TV shows, and YouTube subtitles
- No software installation required
Learn more
Translate Subtitle Files Online — No Manual Editing Needed
Traditional subtitle translation tools often produce literal, unnatural results that require manual fixes. TheSubAI uses context-aware AI to understand tone, slang, and dialogue flow, so subtitles read naturally — not robotic.
Automatic Subtitle Translation for Movies, Series & YouTube
Optimized for real media: movies, TV episodes, YouTube, and online courses — including complex dialogue, humor, and cultural references.
Multi-Language AI Subtitle Translation
Translate subtitles from English to dozens of languages — or between supported language pairs — with fast, accurate results without sacrificing readability.