Subtitle Translator

Open Subtitle Translator on Happytails.ai. This view has the same page content and links, with explicit tool capabilities. Read the processing notes before using a tool.

Tool capabilities

{
  "id": "subtitle-translator",
  "category": "subtitle-tools",
  "built": true,
  "requirements": "Translate existing SRT or VTT while preserving cue IDs and timings; review line wrapping, reading speed and terminology; retain original alongside translation.",
  "implementation": {
    "fields": [
      {
        "key": "language",
        "label": "Translate to",
        "type": "select",
        "value": "English",
        "values": [
          "English",
          "Spanish",
          "French",
          "German",
          "Portuguese"
        ]
      }
    ],
    "files": true,
    "accept": ".srt,.vtt",
    "multiple": false,
    "input": false,
    "processing": "Server required",
    "native": true,
    "ai": true,
    "maxFileBytes": 20971520,
    "note": "Runs with local model weights on this website’s server. No external AI API is used. Review the result for errors. Preserves cue timestamps. Up to 50 cues. Review translation and reading speed.",
    "experience": {
      "automatic": false,
      "single": false,
      "inputMaxLength": 1000000,
      "inputMode": "text",
      "label": "Your text",
      "placeholder": "Type or paste your input…",
      "help": "Up to 1,000,000 characters. Review the settings before running.",
      "helpParts": [
        "Up to 1,000,000 characters.",
        "Review the settings before running."
      ],
      "action": null
    },
    "mode": "explicit",
    "interactive": false
  },
  "execution": "POST /api/v1/tools/subtitle-translator/run",
  "api": {
    "id": "subtitle-translator",
    "name": "Subtitle translator",
    "category": "subtitle-tools",
    "description": "Translate subtitle text while preserving cue timing.",
    "notes": "Runs with local model weights on this website’s server. No external AI API is used. Review the result for errors. Preserves cue timestamps. Up to 50 cues. Review translation and reading speed.",
    "human_path": "/en/subtitle-tools/subtitle-translator/",
    "method": "POST",
    "endpoint": "/api/v1/tools/subtitle-translator/run",
    "schema_url": "/api/v1/tools/subtitle-translator",
    "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": {
            "language": {
              "type": "string",
              "description": "Translate to",
              "default": "English",
              "enum": [
                "English",
                "Spanish",
                "French",
                "German",
                "Portuguese"
              ]
            }
          }
        },
        "files": {
          "type": "array",
          "maxItems": 1,
          "items": {
            "type": "object",
            "required": [
              "name",
              "base64"
            ],
            "additionalProperties": false,
            "properties": {
              "name": {
                "type": "string",
                "maxLength": 200,
                "description": "Filename only, no path."
              },
              "mime": {
                "type": "string",
                "maxLength": 150
              },
              "bytes": {
                "type": "integer",
                "minimum": 0,
                "description": "Optional decoded byte count; must match content if supplied."
              },
              "base64": {
                "type": "string",
                "contentEncoding": "base64",
                "description": "File bytes as padded base64. Use the tool-specific limits.files_bytes value for the total decoded input size."
              }
            }
          }
        }
      }
    },
    "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; self-hosted native engine, no external conversion service",
    "limits": {
      "request_bytes": 31457280,
      "input_characters": 1000000,
      "files_bytes": 20971520,
      "max_files": 1,
      "timeout_seconds": 90
    }
  },
  "agent_processing": "Server; self-hosted native engine, no external conversion service",
  "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"
  }
}

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