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SRT to VTT | agent view

The same page content and links, with explicit tool capabilities. Tools marked with an API can run directly through HTTP. Other tools require the browser interface or are not connected yet.

Tool capabilities

{
  "id": "srt-to-vtt",
  "category": "subtitle-tools",
  "built": true,
  "requirements": "Convert timestamp punctuation and cue structure; preserve supported text and validate timing.",
  "implementation": {
    "fields": [],
    "note": "Paste editable subtitle text or use Open text file. Styling and cue layout metadata are normalized; review overlaps after editing.",
    "experience": {
      "automatic": true,
      "single": false,
      "label": "SRT subtitles",
      "placeholder": "1\n00:00:01,000 --> 00:00:02,000\nHello world",
      "help": "Keep the numbered cues and timestamp lines. Results update as you type. Up to 1,000,000 characters.",
      "action": null
    },
    "mode": "automatic",
    "interactive": false
  },
  "execution": "POST /api/v1/tools/srt-to-vtt/run",
  "api": {
    "id": "srt-to-vtt",
    "name": "SRT to VTT",
    "category": "subtitle-tools",
    "description": "Convert timestamp punctuation and cue structure.",
    "notes": "Paste editable subtitle text or use Open text file. Styling and cue layout metadata are normalized; review overlaps after editing.",
    "human_path": "/en/subtitle-tools/srt-to-vtt/",
    "method": "POST",
    "endpoint": "/api/v1/tools/srt-to-vtt/run",
    "schema_url": "/api/v1/tools/srt-to-vtt",
    "input_schema": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "input": {
          "type": "string",
          "maxLength": 1000000,
          "default": "",
          "description": "Plain text input. File tools use files instead unless otherwise documented."
        },
        "options": {
          "type": "object",
          "additionalProperties": false,
          "properties": {}
        }
      }
    },
    "output_schema": {
      "type": "object",
      "required": [
        "tool",
        "result"
      ],
      "properties": {
        "tool": {
          "type": "string"
        },
        "result": {
          "type": "object",
          "required": [
            "text",
            "files"
          ],
          "properties": {
            "text": {
              "type": [
                "string",
                "null"
              ]
            },
            "data": {
              "description": "Parsed JSON when the textual result is JSON."
            },
            "name": {
              "type": "string"
            },
            "mime": {
              "type": "string"
            },
            "files": {
              "type": "array",
              "items": {
                "type": "object",
                "required": [
                  "name",
                  "mime",
                  "bytes",
                  "base64"
                ],
                "properties": {
                  "name": {
                    "type": "string"
                  },
                  "mime": {
                    "type": "string"
                  },
                  "bytes": {
                    "type": "integer"
                  },
                  "base64": {
                    "type": "string",
                    "contentEncoding": "base64"
                  }
                }
              }
            }
          }
        }
      }
    },
    "processing": "Server; same transformation code as browser tools",
    "limits": {
      "request_bytes": 8388608,
      "input_characters": 1000000,
      "files_bytes": 5242880,
      "max_files": 0,
      "timeout_seconds": 12
    }
  },
  "agent_processing": "Server; same transformation code as browser tools",
  "browser_agent": {
    "supported": true,
    "name": "run_current_tool",
    "discovery": "WebMCP on the human page in a supporting browser",
    "verification": "See audit/API-AUDIT.md; availability is not verification"
  }
}

Page guide

Convert timestamp punctuation and cue structure.

Useful next steps

How to use SRT to VTT

  1. Enter srt subtitles in the input field.
  2. The result updates as you type. Adjust the available settings if needed.
  3. Review the result, then use Copy result or a download link when available.

Working with srt to vtt

A subtitle file combines text with time ranges. Converting SRT to VTT changes its representation; shifting subtitles changes timing; translation changes the language. Generating subtitles from speech adds a transcription step before the captions can be reviewed.

Common questions

Does converting subtitle formats fix synchronization?

No. A format conversion generally retains the source timing. Constant offsets can be adjusted with a shift; drift across a recording may require timing alignment or manual correction.

Why do translated subtitles need another review?

Translated text may be longer than the original even when its meaning is correct. Review line breaks and reading speed without assuming that the original cue duration suits every language.

Continue your workflow: VTT to SRT, Shift subtitles, Subtitles to text.