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Home/Free caption converter/Free SRT to VTT converter

Free SRT to VTT converter

Use CaptionPass as a free online caption converter — upload your file, pick a delivery preset, and download upload-ready output. Optionally grab CaptionPass enhanced formatting in the same run with a full QA report.

SRT vs WebVTT — what changes

  • WebVTT requires a WEBVTT header on line one; SRT has none.
  • Timestamps use dots in VTT (00:01:23.456) and commas in SRT.
  • Renaming .srt to .vtt without converting drops cues silently.

See the full comparison in SRT vs VTT guide or the SRT to VTT converter guide.

Convert your captions free

Upload on CaptionPass, pick a delivery preset, and download upload-ready output with optional enhanced formatting — free tier, no account required.

Convert & fix free →
Convert & fix free