{
 "id": "subrip-text-file-format",
 "name": "SubRip text file format",
 "category": "other",
 "identifiers": {
  "extensions": [
   "srt"
  ],
  "mime": [
   "application/x-subrip"
  ],
  "wikidata": [
   "Q27979375",
   "Q9332294"
  ],
  "loc_fdd": [
   "fdd000569"
  ],
  "magic": [
   {
    "offset": 0,
    "hex": "310d"
   }
  ],
  "puid": [
   "fmt/1218"
  ],
  "signatures": [
   {
    "name": "SubRip Subtitle File",
    "sequences": [
     {
      "position": "bof",
      "offset": 0,
      "max_offset": 64,
      "pattern": "[30:39][30:39]3a[30:39][30:39]3a[30:39][30:39]2c[30:39][30:39][30:39]202d2d3e20[30:39][30:39]3a[30:39][30:39]3a[30:39][30:39]2c[30:39][30:39][30:39]"
     }
    ]
   }
  ]
 },
 "status": "writable",
 "summary": "SubRip subtitle files contain formatted lines of plain text in groups separated by a blank line. Subtitles are numbered sequentially, starting at 1. The timecode format used is hours:minutes:seconds,milliseconds, with time units fixed to two zero-padded digits and fractions fixed to three zero-padded digits, e.g. '00:00:00,000'.",
 "tools": [
  {
   "name": "FFmpeg",
   "url": "https://ffmpeg.org",
   "license": "LGPL-2.1-or-later / GPL-2.0-or-later",
   "open_source": true,
   "reads": true,
   "writes": true
  },
  {
   "name": "Adobe Premiere Pro",
   "url": "http://adobe.com/products/premiere",
   "reads": true,
   "writes": false,
   "license": "proprietary license"
  },
  {
   "name": "Aegisub",
   "url": "https://aegisub.org/",
   "reads": true,
   "writes": false,
   "license": "3-clause BSD License / MIT License",
   "open_source": true
  },
  {
   "name": "SubRip",
   "url": "http://zuggy.wz.cz/",
   "reads": true,
   "writes": true,
   "license": "GNU General Public License, version 2.0",
   "open_source": true
  },
  {
   "name": "Translate Toolkit",
   "url": "https://toolkit.translatehouse.org/",
   "reads": true,
   "writes": false,
   "license": "GNU General Public License",
   "open_source": true
  }
 ],
 "projects": [
  {
   "name": "File Formats Wiki",
   "url": "http://fileformats.archiveteam.org/wiki/SubRip_text_file_format",
   "kind": "wiki"
  },
  {
   "name": "PRONOM fmt/1218",
   "url": "https://www.nationalarchives.gov.uk/PRONOM/fmt/1218",
   "kind": "format-doc"
  },
  {
   "name": "Wikidata Q9332294",
   "url": "https://www.wikidata.org/wiki/Q9332294",
   "kind": "wiki"
  }
 ],
 "provenance": {
  "sources": [
   "converters",
   "ffw",
   "pronom",
   "wikidata"
  ]
 },
 "updated": "2026-10-24",
 "conversions": [
  {
   "to": "flac-free-lossless-audio-codec-1-2-1",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.srt out.flac",
   "fidelity": "partial",
   "losses": "Audio track only: the video is dropped.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "waveform-audio",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.srt out.wav",
   "fidelity": "partial",
   "losses": "Audio track only: the video is dropped.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "mpeg-1-2-audio-layer-3",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.srt out.mp3",
   "fidelity": "lossy",
   "losses": "Lossy re-encoding.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "ogg",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.srt out.ogg",
   "fidelity": "lossy",
   "losses": "Lossy re-encoding.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "mpeg-4-part-14",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.srt out.mp4",
   "fidelity": "lossy",
   "losses": "Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "matroska-1-4",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.srt out.mkv",
   "fidelity": "lossy",
   "losses": "Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.",
   "url": "https://ffmpeg.org"
  },
  {
   "to": "webm",
   "tool": "FFmpeg",
   "command": "ffmpeg -i in.srt out.webm",
   "fidelity": "lossy",
   "losses": "Re-encoded with lossy codecs by default; try `-c copy` to remux without re-encoding when the codecs fit the container.",
   "url": "https://ffmpeg.org"
  }
 ],
 "aliases": [],
 "structure": [],
 "parsers": [],
 "samples": [],
 "claims": [],
 "verification": []
}