Lossless Subtitle & Caption Format Converter

Convert, repair, align, and re-export SubRip (.SRT), WebVTT (.VTT), JSON, and plain text transcripts across video editing suites and web browsers with zero quality loss.

Supported Caption Formats & Specifications

  • SubRip (.SRT): The standard subtitle track format for Adobe Premiere Pro, DaVinci Resolve, Final Cut Pro, VLC Media Player, and YouTube manual caption uploads.
  • WebVTT (.VTT): The W3C web standard required for HTML5 video tags, iOS Safari, Android Chrome, and modern streaming frameworks (HLS, DASH).
  • JSON Cue Array: Structured developer-friendly data containing numeric start seconds, end seconds, formatted timestamps, and text content.
  • Plain Text (.TXT): Unformatted narrative text with all timestamp indices and cue numbers cleanly removed for reading or publishing.

How to Convert Subtitle Formats Online

  1. Upload your existing .SRT or .VTT file or paste subtitle text into the input panel.
  2. The engine automatically detects the source syntax and verifies timestamp integrity.
  3. Choose your target format: WebVTT, SubRip SRT, Structured JSON, or Plain Text.
  4. Download the converted file immediately or copy the output to your clipboard.

Related Audio Engineering Guides

TranscriptG Engineering Lab Navigation