What is preserved
The converter preserves plain caption text and millisecond start/end times. It renumbers cues on export and may wrap long text lines.
SRT to VTT Converter
Convert existing SRT captions into WebVTT for a web video player. Your subtitle text stays in this browser: this tool does not upload the file or require an account. It converts timed text, not spoken audio.
Free · No sign-in · Processed in your browser · No subtitle upload
Plain text and timing only; styling and positioning are not preserved. Nothing is saved to the cloud. Download your result before closing this page.
How to use this tool
- 1.
Choose an SRT file or paste its text into the editor.
- 2.
Check the validated cues and leave the timing offset at zero to preserve timing.
- 3.
Download VTT; the output uses a WEBVTT header and dot-separated milliseconds.
What is not preserved
Font styling, caption positioning and WebVTT STYLE/REGION blocks are not carried over. Use a specialist caption editor if layout or karaoke styling matters.
Frequently asked questions
Does this generate subtitles from a video?
No. You need an existing subtitle file. Use MP4 to Text to transcribe a recording first.
Are my subtitle files uploaded?
No. File reading, validation, editing and download run in your browser. There is no account or transcription-minute charge.
What are the limits?
Use UTF-8 SRT or VTT text up to 2 MB and 20,000 cues. Malformed or out-of-order timestamps are rejected rather than silently repaired.
Related tools
Practical guides
Existing subtitle conversion is free. To generate captions from speech, use your signed-in transcription allowance.
See transcription plans and limits