TTML to SCC Subtitle Converter
Convert TTML cue timing and text into basic Scenarist-style closed-caption data.
Drag & drop your TTML file here
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Supports .ttml, .itt, .xml files up to 50 MB
Free Online TTML to SCC Converter
This converter reads <p> cues from a TTML document and writes basic SCC output using pop-on caption control codes. Timing is quantized to a 29.97 fps frame grid, common inline TTML tags are removed, and cue line breaks become spaces. The generated text is limited to printable ASCII; unsupported characters are replaced with question marks.
TTML to SCC Code Syntax & Structure Inspection
Side-by-side code inspection illustrating header definitions, timestamp syntax, and cue payload formatting
TTML vs SCC Technical Specifications
TTML
TTML (Timed Text Markup Language) is an XML subtitle format. This converter looks for <p> elements with begin and end, or begin and dur, timing attributes, and accepts second-based or clock-valued timing. Cues without a begin attribute are skipped.
SCC
SCC is a text representation used for CEA-608-style caption data. This converter writes the Scenarist_SCC V1.0 file header, timestamped hexadecimal pairs with basic pop-on control codes at 29.97 fps, and no styling, positioning, or broadcaster-specific compliance metadata.
Format Differences
Conversion Troubleshooting & Gotchas
Practical solutions for player compatibility, character encoding, and timing synchronization
Subtitle timing drifts or appears out of sync on media players
Video files frequently differ in framerate (e.g., 23.976 fps vs 25 fps). If the timing drifts steadily, use our Subtitle Sync tool to adjust the global offset or framerate stretch.
Characters appear as garbled symbols or question marks (Mojibake)
Legacy files saved in Windows-1252, Shift-JIS, or GBK may render incorrectly. Our exporter standardizes output to clean UTF-8. Use our Subtitle Encoding Converter if the source file is corrupted.
Overlapping captions when multiple speakers talk simultaneously
Different formats handle overlapping dialogue differently. If your target player cannot render stacked cues cleanly, open the file in our Subtitle Editor to adjust individual cue timings.
Video editing software (Premiere, DaVinci, Final Cut) rejects the file
Professional NLE software enforces strict syntax rules. Our converter eliminates malformed line breaks and non-standard tags, producing clean, standardized files.
Features
Why Convert?
Common Use Cases
Basic Caption Data
Create basic SCC caption data from supported TTML cues for inspection or compatible tools.
Text Simplification
Remove common TTML inline tags and convert cue text to a basic caption representation.
Timing Conversion
Convert TTML begin and end values into SCC frame-grid timestamps.
Related Formats
SRT (SubRip)
Convert TTML to SRT to preserve Unicode text and normal subtitle line breaks.
VTT (WebVTT)
Convert TTML to VTT for a basic web-video subtitle format.
TXT (Plain Text)
Convert TTML to TXT when timing is not required.
How It Works
- 1
Select or drop a TTML file.
- 2
The parser extracts <p> text and timing attributes.
- 3
Common inline TTML tags are removed and line breaks become spaces.
- 4
Text is limited to printable ASCII; unsupported characters become question marks.
- 5
Each cue is written with pop-on control codes and frame-grid timing.
More Subtitle Tools
Frequently Asked Questions
No. It creates basic SCC data with pop-on control codes. Broadcast and platform delivery requirements can require additional metadata, validation, and formatting that this tool does not generate.
Line breaks are converted to spaces in the SCC caption text.
Yes. There is no registration or watermark, and conversion happens in your browser.
The generated SCC text is printable ASCII only. Unsupported characters are replaced with question marks.
Yes. The converter emits the Scenarist_SCC V1.0 header before the timestamped caption data.
No. Processing stays in your browser and the subtitle file is not uploaded.
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