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Convert SubViewer to WebVTT

Convert SubViewer to WebVTT

/subviewer-to-vtt

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About SubViewer to WebVTT Conversion

A quick guide to converting from SubViewer (.sub) to WebVTT (.vtt). Learn about format differences, what's preserved, and how to convert your subtitles.

    Key Differences Between SubViewer and WebVTT

    • Format Structure: SubViewer uses a header-based format with simple timing while WebVTT uses a web-optimized format with header and cues
    • Styling Support: SubViewer provides basic styling through header definitions while WebVTT supports CSS-style formatting and positioning
    • Software Compatibility: SubViewer is primarily used with undefined, undefined, undefined, while WebVTT is commonly used with Google Chrome, Mozilla Firefox, Safari
    • Use Cases: SubViewer is typically used for legacy video players, while WebVTT is preferred for web-based video platforms

Format Structure Examples

SubViewer Format Example

[INFORMATION]
[TITLE]Example SubViewer File
[AUTHOR]Subtitle Editor
[SOURCE]Movie Title
[PRG]Subtitle Editor
[FILEPATH]movie_subtitles.sub
[DELAY]0
[CD TRACK]0
[COMMENT]Example subtitle file
[END INFORMATION]
[SUBTITLE]
[COLF]&HFFFFFF,[STYLE]bd,[SIZE]18,[FONT]Arial

00:00:01.00,00:00:04.00
First line of subtitle text|Second line of subtitle text

00:00:05.00,00:00:08.00
Next subtitle block

00:00:10.00,00:00:15.00
This is another subtitle|With multiple lines of text

WebVTT Format Example

WEBVTT

00:00:01.000 --> 00:00:04.000
First line of subtitle text
Second line of subtitle text

00:00:05.000 --> 00:00:08.000
Next subtitle block

What's Preserved in Conversion

  • Timing information and synchronization
  • Text content and line breaks
  • Basic text formatting
  • Character encoding
  • Language identification

What's Lost in Conversion

  • No features are lost in this conversion. The target format supports all capabilities of the source format.

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Compatible Software

SubViewer can be opened with:

Conversion Features with Checksub

  • Automatic SubViewer format detection
  • Precise timing conversion from SubViewer to WebVTT
  • Smart text formatting adaptation
  • Character encoding handling (UTF-8, Unicode)
  • Format-specific optimizations for WebVTT
  • Error checking and validation

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