Translate Subtitle N8N Workflow

translate.json

{
  "nodes": [
    {
      "parameters": {
        "formTitle": "Subtitle Translation",
        "formFields": {
          "values": [
            {
              "fieldLabel": "subtitle",
              "fieldType": "file",
              "acceptFileTypes": ".srt",
              "requiredField": true
            },
            {
              "fieldLabel": "language",
              "placeholder": "Translation Language",
              "requiredField": true
            }
          ]
        },
        "options": {}
      },
      "type": "n8n-nodes-base.formTrigger",
      "typeVersion": 2.3,
      "position": [
        -208,
        -48
      ],
      "id": "25b3366c-2b99-4c80-aa13-e600bf7de1e9",
      "name": "On form submission",
      "webhookId": "e83bd0ab-ec3b-4788-a64b-8c1c23389a66"
    },
    {
      "parameters": {
        "operation": "text",
        "binaryPropertyName": "subtitle",
        "options": {}
      },
      "type": "n8n-nodes-base.extractFromFile",
      "typeVersion": 1,
      "position": [
        80,
        -64
      ],
      "id": "0eaaf501-caba-4d1a-92e0-180f5e4d1a0f",
      "name": "Extract from File"
    },
    {
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "claude-sonnet-4-20250514",
          "cachedResultName": "Claude 4 Sonnet"
        },
        "options": {
          "maxTokensToSample": 128000
        }
      },
      "type": "@n8n/n8n-nodes-langchain.lmChatAnthropic",
      "typeVersion": 1.3,
      "position": [
        224,
        144
      ],
      "id": "1bd01965-7512-4443-93a9-686de08beadf",
      "name": "Anthropic Chat Model",
      "credentials": {
        "anthropicApi": {
          "id": "WPxJMvNupBE9ADTG",
          "name": "Anthropic account"
        }
      }
    },
    {
      "parameters": {
        "operation": "completion",
        "respondWith": "returnBinary",
        "completionTitle": "Translated Subtitle",
        "options": {}
      },
      "type": "n8n-nodes-base.form",
      "typeVersion": 2.3,
      "position": [
        848,
        -64
      ],
      "id": "67b625e2-a479-41cf-9e5f-3cf6f7424d0c",
      "name": "Form",
      "webhookId": "b8b49a11-a853-40ef-98e8-47f5e5f141b3"
    },
    {
      "parameters": {
        "operation": "toText",
        "sourceProperty": "text",
        "options": {
          "fileName": "translated.srt"
        }
      },
      "type": "n8n-nodes-base.convertToFile",
      "typeVersion": 1.1,
      "position": [
        640,
        -64
      ],
      "id": "df6a67eb-9cff-410a-8089-25a62428f01a",
      "name": "Convert to File"
    },
    {
      "parameters": {
        "promptType": "define",
        "text": "={{ $json.data }}",
        "messages": {
          "messageValues": [
            {
              "message": "=You are a subtitle translator. Your task is to translate the input subtitle file (in .srt format) into {{ $('On form submission').item.json.language }}.\n\nRules:\n\nKeep timing exactly as it is.\n\nTranslate naturally - the output must sound like real, everyday human conversation, not a literal or book-style translation.\n\nDo not add or remove any information. Only translate the given text.\n\nTranslate sentence by sentence, not word by word.\n\nExample: The English phrase “Fire in the hole” should be translated into Persian as “انفجار!” (not “آتش در سوراخ”).\n\nYour translation should always read as if spoken naturally in the target language."
            }
          ]
        },
        "batching": {}
      },
      "type": "@n8n/n8n-nodes-langchain.chainLlm",
      "typeVersion": 1.7,
      "position": [
        288,
        -64
      ],
      "id": "60a212ef-07c7-478a-bbe6-9e5ab395869a",
      "name": "Translator"
    }
  ],
  "connections": {
    "On form submission": {
      "main": [
        [
          {
            "node": "Extract from File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Extract from File": {
      "main": [
        [
          {
            "node": "Translator",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Anthropic Chat Model": {
      "ai_languageModel": [
        [
          {
            "node": "Translator",
            "type": "ai_languageModel",
            "index": 0
          }
        ]
      ]
    },
    "Convert to File": {
      "main": [
        [
          {
            "node": "Form",
            "type": "main",
            "index": 0
          }
        ]
      ]
    },
    "Translator": {
      "main": [
        [
          {
            "node": "Convert to File",
            "type": "main",
            "index": 0
          }
        ]
      ]
    }
  },
  "pinData": {},
  "meta": {
    "templateCredsSetupCompleted": true,
    "instanceId": "6b0b2f72880a6609c9b1a6926abf70f3a56de7470b8c07e76c82825e3685715d"
  }
}