SRT Caption Formatter
Auto-detect SRT / VTT / plain text. Convert, clean, time-shift.
How it works
🔄
Format Convert
SRT ↔ VTT ↔ TXT, auto-detect input⏱️
Time Shift
Offset all timestamps by seconds📏
Line Length
Break long lines at max char count⚡
CPS Check
Flag fast-reading subtitles (chars/sec)💬
Paste subtitles and click "Format"
Data Source & Legal Disclaimer
Effective: Current
Sources: SubRip (.srt) Subtitle Format
All formatting is performed locally in your browser — your subtitle file and video timestamps are never uploaded. Timing adjustments use standard .srt conventions. Always preview the output with your actual video before publishing, as subtitle sync can vary by player and frame rate.