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Subtitle Converter

Convert subtitles between SRT and VTT keeping text, timing and line breaks. Chinese, English and other Unicode text are handled correctly.

Supported: Files are processed by your browser locally; they are not uploaded.

1 · Choose a file

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Choose a file or drop it here Click to choose another file, or drop to replace

2 · Settings

Source format is detected automatically (SRT or VTT).
Browsing is free — sign in only when you start processing.

3 · Result

The preview and download will appear here after processing.

How to use

  1. Choose an .srt or .vtt subtitle file.
  2. Pick the target format.
  3. Click "Start processing" and sign in.
  4. Check text and timing in the preview, then download the new file (original untouched).

FAQ

How do SRT and VTT differ?
VTT uses a dot for milliseconds plus a WEBVTT header, and numbering is optional. Timing and text are preserved as-is.
What happens to VTT NOTE / style blocks?
NOTE comments and STYLE/REGION blocks have no SRT equivalent and are omitted, with a note in the result; inline tags are kept as plain text where possible.
Will Chinese subtitles break?
No. Files are parsed as UTF-8 (BOM tolerated). For legacy GBK encodings, convert to UTF-8 first.
Do timings change?
No. Conversion changes format only — never timing.

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