DeepLを使ってYouTube動画を日本語に自動翻訳してSlackに投稿
上級
これはSocial Media, Multimodal AI分野の自動化ワークフローで、20個のノードを含みます。主にIf, Code, DeepL, Merge, Slackなどのノードを使用。 DeepLでYouTube動画を日本語に自動翻訳してSlackに投稿
前提条件
- •Slack Bot Token または Webhook URL
ワークフロープレビュー
ノード接続関係を可視化、ズームとパンをサポート
ワークフローをエクスポート
以下のJSON設定をn8nにインポートして、このワークフローを使用できます
{
"id": "iNkDWkBewhVKUVWf",
"meta": {
"instanceId": "15d6057a37b8367f33882dd60593ee5f6cc0c59310ff1dc66b626d726083b48d",
"templateCredsSetupCompleted": true
},
"name": "Auto-Translate YouTube Videos to Japanese with DeepL and Post to Slack",
"tags": [],
"nodes": [
{
"id": "8908066f-105b-4a8c-a642-921c10e16d25",
"name": "RSSトリガー",
"type": "n8n-nodes-base.rssFeedRead",
"position": [
-128,
-160
],
"parameters": {
"url": "https://www.youtube.com/feeds/videos.xml?channel_id=UCYO_jab_esuFRV4b17AJtAw",
"options": {}
},
"typeVersion": 1
},
{
"id": "23e0fa4a-a16e-4e11-b9b5-879c1001f324",
"name": "Send to Slack",
"type": "n8n-nodes-base.slack",
"position": [
1616,
-256
],
"parameters": {
"text": "=🎥 *New YouTube Video!* \n━━━━━━━━━━━━━━━ \n📌 *タイトル* \n{{ $json.title }}\n\n📝 *説明* \n{{ $json.description }}\n\n🌍 *Original Title* \n{{ $('Merge YouTube + DeepL Results1').item.json.title }}\n\n🗒️ *Original Description* \n{{ $('Merge YouTube + DeepL Results1').item.json.description }}\n\n🔗 *Link* \n<{{ $('Format YouTube Data for DeepL').item.json.link }}|Watch on YouTube>",
"channel": "=#general",
"attachments": [],
"otherOptions": {},
"authentication": "oAuth2"
},
"credentials": {
"slackOAuth2Api": {
"id": "2kyw7TSL5VT4S3md",
"name": "Slack account 8"
}
},
"typeVersion": 1
},
{
"id": "ebff7150-ee6d-4dad-ad03-a29944fcf28a",
"name": "動画を取得",
"type": "n8n-nodes-base.youTube",
"position": [
496,
-256
],
"parameters": {
"part": [
"snippet"
],
"options": {},
"videoId": "={{ String($json.YT_CHANNEL_ID || $json.id || $json.link || '')\n .replace(/^yt:video:/,'')\n .replace(/^.*(?:v=|shorts\\/|youtu\\.be\\/)/,'')\n .split(/[?&]/)[0] }}",
"resource": "video",
"operation": "get"
},
"credentials": {
"youTubeOAuth2Api": {
"id": "CMyE0HrVEaStWZgG",
"name": "YouTube account 2"
}
},
"typeVersion": 1
},
{
"id": "a461efd7-0ffc-4a56-b270-a064b0a91d3e",
"name": "メッセージを送信",
"type": "n8n-nodes-base.slack",
"position": [
496,
-64
],
"webhookId": "8c1cfac1-12a9-4ef9-9b98-5fa9b8504772",
"parameters": {
"text": "= *スキップされた動画を検出しました* 📺 タイトル: {{$json.title || $json.snippet.title}} 🔗 URL: {{$json.link || `https://www.youtube.com/watch?v=${$json.id}`}} ⚠️ 理由: 英語タイトルではないため、翻訳対象外としました",
"select": "channel",
"channelId": {
"__rl": true,
"mode": "list",
"value": "CKUCBTG0H",
"cachedResultName": "general"
},
"otherOptions": {},
"authentication": "oAuth2"
},
"credentials": {
"slackOAuth2Api": {
"id": "2kyw7TSL5VT4S3md",
"name": "Slack account 8"
}
},
"typeVersion": 2.3
},
{
"id": "bfd54f44-77e7-4ba0-a523-e6cd2b8d432f",
"name": "付箋",
"type": "n8n-nodes-base.stickyNote",
"position": [
-960,
-592
],
"parameters": {
"width": 432,
"height": 1232,
"content": "## Overview\nAuto-translate YouTube uploads to Japanese and post to Slack (DeepL + Slack)\n\n## Who’s it for\nMarketing or community teams that follow English-speaking creators but share updates with Japanese audiences; language learners who want JP summaries of newly released videos; internal comms teams curating industry channels for a JP workspace.\n\n## What it does\nThis workflow detects new YouTube uploads, retrieves full metadata, translates the title and description into Japanese using DeepL, and posts a formatted message to a Slack channel. It also skips non-English titles to avoid unnecessary translation.\n## How it works\n・RSS watches a channel for new items.\n・YouTube API fetches the full snippet (title/description).\n・Text is combined into a single payload and sent to DeepL.\n・The translated result + original metadata is merged and posted to Slack.\n\n## Requirements\n・YouTube OAuth (for reliable snippet retrieval)\n・DeepL API key (Free or Pro)\n・Slack OAuth\n\n## How to set up\n・Duplicate this template.\n・Open the Config (Set) node and fill in YT_CHANNEL_ID, TARGET_LANG, SLACK_CHANNEL.\n・Connect credentials for YouTube, DeepL, and Slack (don’t hardcode API keys in HTTP nodes).\n・Click Execute workflow and verify one sample post.\n\n## How to customize\n・Change TARGET_LANG to any language supported by DeepL.\n・Add filters (exclude Shorts, skip videos under N characters).\n・Switch to Slack Blocks for richer formatting or thread replies.\n・Add a fallback translator or retry logic on HTTP errors.\n## Notes & limits\nDeepL Free/Pro have different endpoints/quotas and monthly character limits. YouTube and Slack also enforce rate limits. Keep credentials in n8n’s credential store; do not commit keys into templates. Rotate keys if you accidentally exposed them."
},
"typeVersion": 1
},
{
"id": "dd5f0eef-4159-40db-a27d-02f318ea467a",
"name": "付箋1",
"type": "n8n-nodes-base.stickyNote",
"position": [
512,
112
],
"parameters": {
"color": 7,
"height": 304,
"content": "## Send a Message (Skipped)\n📘 Setup Steps\n1️⃣ Connect YouTube, DeepL, and Slack credentials\n2️⃣ Update the RSS channel ID\n3️⃣ Adjust Slack channel name if needed\n4️⃣ Test with one video manually\n\n(Optional) Embed a quick Loom video for reviewers."
},
"typeVersion": 1
},
{
"id": "988d0c76-7f0c-4992-bae8-f3bb51369203",
"name": "付箋4",
"type": "n8n-nodes-base.stickyNote",
"position": [
768,
-32
],
"parameters": {
"color": 7,
"width": 256,
"height": 288,
"content": "## Format YouTube Data for DeepL\n\n🧠 Prepare Translation Input\nCombines YouTube data into a single formatted text:\n【Title】\n{title}\n\n【Description】\n{description}\n"
},
"typeVersion": 1
},
{
"id": "f790cfce-8057-4636-baee-7dc5939c045b",
"name": "付箋5",
"type": "n8n-nodes-base.stickyNote",
"position": [
256,
-368
],
"parameters": {
"color": 7,
"height": 192,
"content": "## Language Filter\n🔎 Filter English Titles Only\nSkips non-English titles based on regex (^[A-Za-z0-9\\\\s\\\\W]+$).\nIf true → proceed to translation.\nIf false → send “skipped” message to Slack."
},
"typeVersion": 1
},
{
"id": "81f79bc3-f47d-4e9d-81d1-cd3bc0255351",
"name": "付箋6",
"type": "n8n-nodes-base.stickyNote",
"position": [
-176,
-32
],
"parameters": {
"color": 7,
"width": 224,
"height": 224,
"content": "## RSS Trigger\n\n⏰ Trigger for new uploads\nChecks the target YouTube channel RSS feed for new video posts.\nAutomatically passes new entries to the next node."
},
"typeVersion": 1
},
{
"id": "85c85131-fbd2-4345-a74c-1caf63f8d270",
"name": "付箋7",
"type": "n8n-nodes-base.stickyNote",
"position": [
1168,
-64
],
"parameters": {
"color": 7,
"height": 208,
"content": "## Merge\n\n🔗 Combine Original + Translated Data\nJoins DeepL translation results with YouTube metadata.\nOutput: unified object ready for Slack posting."
},
"typeVersion": 1
},
{
"id": "f20df73e-1c72-4847-9a03-8488349b73a5",
"name": "付箋8",
"type": "n8n-nodes-base.stickyNote",
"position": [
976,
-512
],
"parameters": {
"color": 7,
"height": 272,
"content": "## Translate with DeepL\n\n🌍 Translate text into Japanese\nUses the DeepL API (POST request).\nTranslates the combined YouTube text.\nReturns JSON with translated output.\n⚠️ Never hardcode API keys — store in credentials."
},
"typeVersion": 1
},
{
"id": "8194a237-a490-4354-bb0e-9fe885ac6824",
"name": "付箋9",
"type": "n8n-nodes-base.stickyNote",
"position": [
528,
-480
],
"parameters": {
"color": 7,
"height": 192,
"content": "## Get a Video\n🎬 Retrieve Full Video Details\nUses the YouTube API to fetch snippet information such as title and description.\nInput: video ID from RSS.\nOutput: structured JSON for downstream processing."
},
"typeVersion": 1
},
{
"id": "6b5e5ef1-b928-43fb-aab7-64b2414c3ea0",
"name": "言語フィルター",
"type": "n8n-nodes-base.if",
"position": [
272,
-160
],
"parameters": {
"options": {},
"conditions": {
"options": {
"version": 2,
"leftValue": "",
"caseSensitive": true,
"typeValidation": "strict"
},
"combinator": "and",
"conditions": [
{
"id": "00af14f6-2d40-4fb3-bdb1-a16438529179",
"operator": {
"type": "string",
"operation": "regex"
},
"leftValue": "={{ String($('RSS Trigger').item.json?.title ?? '') }}",
"rightValue": "^[A-Za-z0-9\\s\\W]+$"
}
]
}
},
"typeVersion": 2.2
},
{
"id": "239c591d-0625-4257-8f27-1c087058736f",
"name": "Format YouTube Data for DeepL",
"type": "n8n-nodes-base.code",
"position": [
720,
-256
],
"parameters": {
"jsCode": "// --- YouTubeデータの取得 ---\nconst item = $json;\n\n// RSS からは title / link だけ、YouTubeノードからは snippet 構造を想定\nconst title = item.snippet?.title || item.title || \"No title\";\nconst description = item.snippet?.description || item.description || \"No description\";\nconst videoId = item.id?.videoId || item.id?.replace(\"yt:video:\", \"\") || \"unknown\";\nconst link = item.link || `https://www.youtube.com/watch?v=${videoId}`;\n\n// --- 整形（DeepLに渡す形） ---\nconst textToTranslate = `\n【Title】\n${title}\n\n【Description】\n${description}\n`;\n\n// --- DeepLに渡すJSON形式で出力 ---\nreturn [\n {\n json: {\n title,\n description,\n videoId,\n link,\n textToTranslate,\n }\n }\n];"
},
"typeVersion": 2
},
{
"id": "468941d1-78ab-4a00-a539-d86b81c2c7c7",
"name": "付箋10",
"type": "n8n-nodes-base.stickyNote",
"position": [
-432,
-480
],
"parameters": {
"color": 7,
"width": 224,
"height": 352,
"content": "## Setup checklist\n1) Connect: YouTube OAuth / DeepL / Slack\n2) Open “Set (Config)” and fill: YT_CHANNEL_ID, TARGET_LANG, SLACK_CHANNEL\n3) Replace DeepL HTTP node with DeepL credential (no hardcoded key)\n4) Run once with a recent video to validate\n5) Optional: turn on Error Trigger → Slack #alerts\n"
},
"typeVersion": 1
},
{
"id": "c2cc4803-9017-4fef-82ad-b1023eace6d6",
"name": "言語を翻訳",
"type": "n8n-nodes-base.deepL",
"position": [
944,
-192
],
"parameters": {
"text": "={{ $json.textToTranslate }}",
"translateTo": "JA",
"additionalFields": {}
},
"credentials": {
"deepLApi": {
"id": "BzWijzgd9hLwECP0",
"name": "DeepL account 4"
}
},
"typeVersion": 1
},
{
"id": "494aff32-6c93-4623-bc66-0138e5cf0694",
"name": "付箋3",
"type": "n8n-nodes-base.stickyNote",
"position": [
1648,
-48
],
"parameters": {
"color": 7,
"height": 192,
"content": "## Send to Slack\n💬 Post Translated Message to Slack\nSends formatted message to a selected channel.\nIncludes both translated and original texts with a video link.\nExample output:"
},
"typeVersion": 1
},
{
"id": "a0179356-9df6-4628-aee6-418cda343144",
"name": "Merge YouTube + DeepL Results1",
"type": "n8n-nodes-base.merge",
"position": [
1168,
-256
],
"parameters": {
"mode": "combine",
"options": {},
"combineBy": "combineAll"
},
"typeVersion": 3.2
},
{
"id": "63f64775-51e9-4e31-aa66-8662a9f2f6dc",
"name": "翻訳出力をフォーマット",
"type": "n8n-nodes-base.code",
"position": [
1392,
-256
],
"parameters": {
"jsCode": "// 入力データ取得\nconst text = $json.text || '';\n\n// タイトル行を抽出\nconst titleMatch = text.match(/タイトル[^\\n]*\\n(.*?)\\n/);\nconst title = titleMatch ? titleMatch[1].trim() : '';\n\n// 説明行を抽出\nconst descMatch = text.match(/説明[^\\n]*\\n([\\s\\S]*)/);\nconst description = descMatch ? descMatch[1].trim() : '';\n\n// Slackで見やすいように成形\nreturn {\n json: {\n title,\n description\n }\n};\n"
},
"typeVersion": 2
},
{
"id": "24384f42-e32b-4ec0-b5de-66c754faa639",
"name": "付箋12",
"type": "n8n-nodes-base.stickyNote",
"position": [
1344,
-704
],
"parameters": {
"color": 7,
"width": 320,
"height": 416,
"content": "## Format Translated Output\n\nThis Code node formats the DeepL translation result into a clean JSON object \nthat can be sent to Slack or other integrations.\nInput:\n- Translated text (from DeepL)\n- Original title and description\nOutput:\n{\n \"translated_title\": \"...\",\n \"translated_description\": \"...\",\n \"original_title\": \"...\",\n \"url\": \"...\"\n}\n\nTip:\nIf you modify the Slack message format, adjust field names here."
},
"typeVersion": 1
}
],
"active": false,
"pinData": {},
"settings": {
"executionOrder": "v1"
},
"versionId": "dc7904c4-4ad8-43fe-a3a4-87b66973cf02",
"connections": {
"ebff7150-ee6d-4dad-ad03-a29944fcf28a": {
"main": [
[
{
"node": "239c591d-0625-4257-8f27-1c087058736f",
"type": "main",
"index": 0
}
]
]
},
"8908066f-105b-4a8c-a642-921c10e16d25": {
"main": [
[
{
"node": "6b5e5ef1-b928-43fb-aab7-64b2414c3ea0",
"type": "main",
"index": 0
}
]
]
},
"a461efd7-0ffc-4a56-b270-a064b0a91d3e": {
"main": [
[]
]
},
"6b5e5ef1-b928-43fb-aab7-64b2414c3ea0": {
"main": [
[
{
"node": "ebff7150-ee6d-4dad-ad03-a29944fcf28a",
"type": "main",
"index": 0
}
],
[
{
"node": "a461efd7-0ffc-4a56-b270-a064b0a91d3e",
"type": "main",
"index": 0
}
]
]
},
"c2cc4803-9017-4fef-82ad-b1023eace6d6": {
"main": [
[
{
"node": "a0179356-9df6-4628-aee6-418cda343144",
"type": "main",
"index": 0
}
]
]
},
"63f64775-51e9-4e31-aa66-8662a9f2f6dc": {
"main": [
[
{
"node": "23e0fa4a-a16e-4e11-b9b5-879c1001f324",
"type": "main",
"index": 0
}
]
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},
"239c591d-0625-4257-8f27-1c087058736f": {
"main": [
[
{
"node": "c2cc4803-9017-4fef-82ad-b1023eace6d6",
"type": "main",
"index": 0
},
{
"node": "a0179356-9df6-4628-aee6-418cda343144",
"type": "main",
"index": 1
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]
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},
"a0179356-9df6-4628-aee6-418cda343144": {
"main": [
[
{
"node": "63f64775-51e9-4e31-aa66-8662a9f2f6dc",
"type": "main",
"index": 0
}
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}
}
}よくある質問
このワークフローの使い方は？
上記のJSON設定コードをコピーし、n8nインスタンスで新しいワークフローを作成して「JSONからインポート」を選択、設定を貼り付けて認証情報を必要に応じて変更してください。
このワークフローはどんな場面に適していますか？
上級 - ソーシャルメディア, マルチモーダルAI
有料ですか？
このワークフローは完全無料です。ただし、ワークフローで使用するサードパーティサービス（OpenAI APIなど）は別途料金が発生する場合があります。
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