CSV to TTML Converter

Convert CSV to TTML

Converting from CSV (CSV) to TTML (TTML) while maintaining timing accuracy and subtitle content.

About CSV to TTML Conversion

A quick guide to converting from CSV (.csv) to TTML (.ttml). Learn about format differences, what's preserved, and how to convert your subtitles.

Key Differences Between CSV and TTML

Format Structure: CSV uses a comma-separated spreadsheet format while TTML uses an XML-based format with styling and layout sections
Styling Support: CSV supports basic cell formatting while TTML supports comprehensive XML-based styling
Software Compatibility: CSV is primarily used with undefined, undefined, undefined, while TTML is commonly used with undefined, undefined, undefined
Use Cases: CSV is typically used for spreadsheet-based workflows, while TTML is preferred for professional streaming platforms

Format Structure Examples

CSV Format Example

Start Time,End Time,Text
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"
00:00:08.000,00:00:12.000,"Another subtitle with multiple lines of text"

TTML Format Example

<?xml version="1.0" encoding="utf-8"?>
<tt xmlns="http://www.w3.org/ns/ttml" 
    xmlns:ttp="http://www.w3.org/ns/ttml#parameter" 
    xmlns:tts="http://www.w3.org/ns/ttml#styling" 
    xmlns:ttm="http://www.w3.org/ns/ttml#metadata" 
    xmlns:xml="http://www.w3.org/XML/1998/namespace" 
    ttp:timeBase="media" 
    ttp:frameRate="24" 
    xml:lang="en">
  <head>
    <metadata>
      <ttm:title>Sample TTML</ttm:title>
    </metadata>
    <styling>
      <style xml:id="s1" 
             tts:textAlign="center" 
             tts:fontFamily="Arial" 
             tts:fontSize="100%"/>
    </styling>
    <layout>
      <region xml:id="bottom" 
              tts:displayAlign="after" 
              tts:extent="80% 40%" 
              tts:origin="10% 50%"/>
      <region xml:id="top" 
              tts:displayAlign="before" 
              tts:extent="80% 40%" 
              tts:origin="10% 10%"/>
    </layout>
  </head>
  <body>
    <div>
      <p xml:id="subtitle1" begin="00:00:01.375" end="00:00:05.750" 
         style="s1" region="top">TOP SAMPLE TEXT</p>
      <p xml:id="subtitle2" begin="00:00:05.916" end="00:00:10.216" 
         style="s1" region="bottom">BOTTOM SAMPLE TEXT</p>
      <p xml:id="subtitle3" begin="00:00:10.418" end="00:00:15.083" 
         style="s1" region="bottom">He had a great story.</p>
      <p xml:id="subtitle4" begin="00:00:15.391" end="00:00:20.558" 
         style="s1" region="bottom">- Did he tell you what it was about?<br/>- He did</p>
      <p xml:id="subtitle5" begin="00:00:20.750" end="00:00:25.041" 
         style="s1" region="bottom">In 1992, a shipping container<br/>fell overboard</p>
    </div>
  </body>
</tt>

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

XML-based styling
Multiple regions
Advanced metadata capabilities

Compatible Software

CSV can be opened with:

TTML can be opened with:

Conversion Features with Checksub

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

Convert Your CSV File Now

Ready to convert your subtitles? Our converter maintains timing accuracy and proper formatting while ensuring the best possible compatibility with your target platform.

Convert to TTML