n8n，真正0代码、只需5分钟！ 就能打造第二大脑
视频地址
B站
YouTube
你是不是也这样：刷到一篇不错的内容想稍后看，结果收藏夹里堆了几百篇，却从来没有时间翻？
知识碎片到处都是，却始终形不成自己的“第二大脑”？
今天我带你用 n8n，真正0代码、只需5分钟！ 就能打造一个私人自动化系统：从webhook触发，到文章自动抓取, 再到AI智能摘要打标签, 最后永久保存进你的知识库，可搜索、可回顾、再也不怕“好东西”白收藏了！
全程拖拽节点、零基础也能上手，效率直接起飞～
废话不多说，直接开整！
依赖项
先看一下依赖项，笔记工具这里我用的是本地搭建的memo ，自带了api，跟n8n配合的很好。
实现思路
大家看这个流程图就很清楚了。
flowchart TD
A[获取 URL<br>（webhook）] --> B[Jina Reader<br>干净抓取网页 → Markdown]
B --> C[AI 智能整理<br>摘要 + 要点 + 标签 + 分类]
C --> D[Memo / 知识库持久化<br>可全文搜索 · 永久保存]
subgraph "n8n 5分钟自动化流程"
A --> B --> C --> D
end
style A fill:#f0f4ff,stroke:#666
style D fill:#e6f4ff,stroke:#1890ff,stroke-width:2px
效果演示
总结
短短5分钟，我们就用n8n零代码搭建了一个超级实用的私人自动化系统。
有同学就要问了，为什么要这么折腾呢，直接用notion加浏览器插件不就好了吗？
notion是很好，只可惜内容是存在别人那里的，笔记只有存在本地才是自己的，才能成为你真正能搜索、能回顾的“第二大脑”！
从今天起，再也不用担心收藏了却没时间看，知识终于开始为你工作，而不是反过来。
欢迎在评论区分享你自己的知识库搭建方案。
喜欢的话点个赞、关注、加收藏，我们下期继续玩转更多n8n黑科技！
感谢观看，我们下次见！
workflow 代码
{
"name": "x to memo",
"nodes": [
{
"parameters": {
"model": {
"__rl": true,
"mode": "list",
"value": "gpt-4.1-mini"
},
"builtInTools": {},
"options": {}
},
"type": "@n8n/n8n-nodes-langchain.lmChatOpenAi",
"typeVersion": 1.3,
"position": [544, 224],
"id": "3ac944d2-21ec-45ee-8ca1-434e3da51b38",
"name": "OpenAI Chat Model",
"credentials": {
"openAiApi": {
"id": "BXY8zyriz6gA0iAp",
"name": "OpenAi account"
}
}
},
{
"parameters": {
"schemaType": "manual",
"inputSchema": "{\n \"type\": \"object\",\n \"properties\": {\n \"summary\": {\n \"type\": \"string\",\n \"description\": \"对原文的核心内容进行较为详细的中文总结。需包含主要事实、关键观点、重要结论或转折点。信息密度较高，避免过于泛泛而谈或只有一句话。字数建议60–140字。\"\n },\n \"text_with_punctuation\": {\n \"type\": \"string\",\n \"description\": \"转成markdown格式，如果是英文，则进行翻译\"\n }\n },\n \"required\": [\"summary\", \"text_with_punctuation\"],\n \"additionalProperties\": false\n}\n"
},
"type": "@n8n/n8n-nodes-langchain.outputParserStructured",
"typeVersion": 1.3,
"position": [672, 224],
"id": "5ada8866-3959-48a4-a547-a582e38fa033",
"name": "Structured Output Parser"
},
{
"parameters": {
"method": "POST",
"url": "http://192.168.50.199:5231/api/v1/memos",
"authentication": "genericCredentialType",
"genericAuthType": "httpBearerAuth",
"sendBody": true,
"bodyParameters": {
"parameters": [
{
"name": "state",
"value": "NORMAL"
},
{
"name": "visibility",
"value": "PRIVATE"
},
{
"name": "relations",
"value": "[]"
},
{
"name": "location",
"value": "{ \"placeholder\": \"\", \"latitude\": 0, \"longitude\": 0 }"
},
{
"name": "content",
"value": "=> {{ $json.output.summary }}\n\n{{ $json.output.text_with_punctuation }}\n\n原文地址: {{ $('设置URL').item.json.url }}"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.3,
"position": [880, 0],
"id": "c855bc87-8865-4b8f-9dc5-f1cdf42c2367",
"name": "保存到memo",
"credentials": {
"httpBearerAuth": {
"id": "bCy4GSlM1aheIAlH",
"name": "Bearer Auth account"
}
}
},
{
"parameters": {
"path": "421f32a4-0b85-4cd4-99f3-9881899eb9fb",
"options": {}
},
"type": "n8n-nodes-base.webhook",
"typeVersion": 2.1,
"position": [-144, 0],
"id": "54fb7c6a-eb7a-4a0d-8a29-a3cae25f5016",
"name": "Webhook",
"webhookId": "421f32a4-0b85-4cd4-99f3-9881899eb9fb"
},
{
"parameters": {
"assignments": {
"assignments": [
{
"id": "290ce417-a6df-4597-807b-10ea2ef6d72f",
"name": "url",
"value": "={{ $json.query.x }}",
"type": "string"
}
]
},
"options": {}
},
"type": "n8n-nodes-base.set",
"typeVersion": 3.4,
"position": [80, 0],
"id": "a4b0a060-4257-426d-a2c7-fa6564c5e87d",
"name": "设置URL"
},
{
"parameters": {
"url": "=https://r.jina.ai/{{ $json.url }}",
"options": {}
},
"type": "n8n-nodes-base.httpRequest",
"typeVersion": 4.3,
"position": [304, 0],
"id": "5a9aedaf-93d4-4759-b3a9-5b7e09c9d735",
"name": "Call jina"
},
{
"parameters": {
"promptType": "define",
"text": "=你是一个专业的文本整理写手。\n\n任务：\n1.转换成 Markdown 格式\n2. 不要改写原文意思，不要增删词语，只加标点、分段、加标签。\n3. 保持原文所有内容完整。\n\n输出必须是严格的 JSON，不要有任何前缀、后缀、markdown 包裹、解释文字：\n\n{\n \"summary\": \"对整段内容的详细中文总结，包含主要事实、关键观点、说话人立场、重要结论等，信息密度较高，字数70–160字\",\n \"text_with_punctuation\": \"这里是处理后的 Markdown 格式文本（如果是英文，则翻译成中文)，在文章的最后，提炼1-3个标签，标签的格式是:#标签1，#标签2，#标签3\"\n}\n\n现在处理以下转写文本：\n{{ $json.data }}\n",
"hasOutputParser": true,
"batching": {}
},
"type": "@n8n/n8n-nodes-langchain.chainLlm",
"typeVersion": 1.9,
"position": [528, 0],
"id": "b4b57457-b5d4-4550-8104-a79ac64bcbda",
"name": "文本整理"
},
{
"parameters": {
"content": "Get url from the webhook",
"height": 256,
"width": 224
},
"type": "n8n-nodes-base.stickyNote",
"position": [16, -128],
"typeVersion": 1,
"id": "32a39390-ea5e-4cfa-8a6f-98e01c451853",
"name": "Sticky Note"
},
{
"parameters": {
"content": "Calls Jina Reader (https://r.jina.ai/url) → gets clean, ad-free, LLM-ready markdown (works for most articles, blogs, docs, many PDFs, etc.)",
"height": 256,
"width": 224
},
"type": "n8n-nodes-base.stickyNote",
"position": [256, -128],
"typeVersion": 1,
"id": "3255f6b3-674f-4a4a-a5cd-68010309d40c",
"name": "Sticky Note1"
},
{
"parameters": {
"content": "LLM chain instructions:\n• Convert to well-structured Markdown\n• Add punctuation, logical paragraphs, headings if missing\n• If English → translate to Chinese\n• Write detailed Chinese summary (70–160 chars, high info density)\n• Append 1–3 relevant tags at the end (#tag1 #tag2)",
"height": 288,
"width": 224
},
"type": "n8n-nodes-base.stickyNote",
"position": [528, -304],
"typeVersion": 1,
"id": "f102bd8b-5cf7-428c-a07d-00ee94f48ad3",
"name": "Sticky Note2"
},
{
"parameters": {
"content": "POST to your local memos API\nContent format:\n\n{{summary}}<br><br>{{markdown text}}<br><br>原文地址: {{original url}}\nVisibility: PRIVATE\n",
"height": 288,
"width": 208
},
"type": "n8n-nodes-base.stickyNote",
"position": [832, -304],
"typeVersion": 1,
"id": "9951ca7e-9d35-4400-93d2-ab96186f9887",
"name": "Sticky Note3"
}
],
"pinData": {},
"connections": {
"OpenAI Chat Model": {
"ai_languageModel": [
[
{
"node": "文本整理",
"type": "ai_languageModel",
"index": 0
}
]
]
},
"Structured Output Parser": {
"ai_outputParser": [
[
{
"node": "文本整理",
"type": "ai_outputParser",
"index": 0
}
]
]
},
"Webhook": {
"main": [
[
{
"node": "设置URL",
"type": "main",
"index": 0
}
]
]
},
"设置URL": {
"main": [
[
{
"node": "Call jina",
"type": "main",
"index": 0
}
]
]
},
"Call jina": {
"main": [
[
{
"node": "文本整理",
"type": "main",
"index": 0
}
]
]
},
"文本整理": {
"main": [
[
{
"node": "保存到memo",
"type": "main",
"index": 0
}
]
]
}
},
"active": true,
"settings": {
"executionOrder": "v1",
"availableInMCP": false
},
"versionId": "8ccdabb7-039f-42f3-98ba-81e8b9a45759",
"meta": {
"templateCredsSetupCompleted": true,
"instanceId": "ea88c21968cc5db85f3852738745083d909e06f82d93e8f23c557c663f940240"
},
"id": "9W4C14Uv4GKG4H1HnmgkA",
"tags": []
}