2Ryun (第二现实)
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the knowledge OS for the AI era

Write a document.
Let it grow.

The AI knowledge operating system that turns your documents into a living website.

Start Writing Free Explore Features
No credit card. No download. Works in your browser.
Your Document (Markdown)
Knowledge Graph (auto-built)
Web page or Multi-page Website (live)
Capabilities

One platform. Six capabilities.

Everything you need to write, connect, publish, and grow — in one place.

Documents

One-click document tree management with Markdown WYSIWYG—structure your content in seconds.

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Wiki Engine

Automatically distill structured knowledge and build a living knowledge graph that connects your ideas.

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Gen-HTML

One-click multi-page site generation with 75+ beautiful templates—pick, preview, publish.

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AI Assistant

Conversational knowledge Q&A—the last mile from writing to using.

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Chat Bot

Deliver knowledge outward—embed in your site so visitors can ask and get answers 24/7.

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GEO Engine

Content strategy optimized for AI search engines—get found by the answers of tomorrow.

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How to use

One platform. Two ways to use it.

Creator

The Web App

Write, build, and chat directly in your browser—no install, just open and go.

Write once. Publish everywhere.

Open the Web App
Developer

AI Agent Skill

Plug 2Ryun into your own AI assistant via API. Put knowledge at the core of any system.

44+ endpoints. One Skill. Infinite possibilities.

Install the Skill
Workflow

From idea to website in three steps

Write

Write Markdown with a real-time WYSIWYG view.

Focus on content

Choose template

Pick from 75+ templates and preview instantly.

Style in seconds

Publish

Generate a web page with one click.

SEO & GEO ready
Why 2Ryun

2Ryun vs. Notion & traditional tools

Traditional docs store words.
2Ryun turns them into a living knowledge system.

Capability Tranditional tools notion 2Ryun
Knowledge graph Auto-built
One-click live website 75+ templates
AI search (GEO) ready Built-in
AI chatbot for visitors Embeddable
Write once, publish everywhere Native workflow
Markdown WYSIWYG editor Real-time preview
Wiki & knowledge graph Basic Auto-distilled
AI assistant built-in Add-on Native
Gallery

Templates that fit every project

A taste of what 2Ryun can generate from your document tree.

Docuflow

docs

Narrative

blog

Showcase

portfolio

PitchDeck

portfolio

Showreel

portfolio

Multi-section Corporate

landing
Made for

Built for every knowledge builder

Bloggers & content creators

Write once in 2Ryun, publish everywhere—beautifully:

  • Write in Markdown with a real-time WYSIWYG view.
  • Wiki auto-extracts key concepts.
  • Pick a magazine template, publish in 15 seconds.

Technical creators

Turn your technical writing into professional pages—no frontend skills needed:

  • Code highlighting and math formulas.
  • Pick a tech-doc or product-landing template.
  • Embed a chatbot for conversational docs.

Founders & product people

Go from PRD to live page in five minutes:

  • Write a PRD, generate a landing page in 5 minutes.
  • Update the doc, regenerate, page refreshes instantly.
  • Build a knowledge graph and embed a customer chatbot.

Knowledge workers

Let 2Ryun build your second brain—one that grows, talks back, and serves you:

  • Wiki auto-extracts and organizes entries by category.
  • Visualize your knowledge graph and hidden connections.
  • GEO writes long-form articles; embed a chatbot to share knowledge.
FAQ

Common questions

What is 2Ryun?
2Ryun (Second Reality) is an AI-native content and knowledge platform. The official tagline: "Write a document, and let it grow." In one sentence: you focus on writing; AI reads, organizes, and publishes — storing documents, organizing knowledge, and publishing outward become one pipeline.
How is it different from the note-taking app I already use?
Note apps solve "write it down." 2Ryun solves "what happens after you write it down": AI automatically extracts knowledge entries from your documents and links them into a "Second Brain," then turns your content into web pages, a full website, or an AI chatbot in one click. A note app is a warehouse; 2Ryun is a warehouse + factory + storefront.
Do I need technical skills to use it?
No. No code, no server, no hosting setup: put content in → click "Generate Web Page" → get a shareable link or file in about 15 seconds. Technical users can go further (API, Agent integration), but that's optional, not a prerequisite.
Is it free?
The free tier is free to use — it includes basic document, web page generation, and AI capacity, enough for everyday personal use. Upgrade when you outgrow it. Tiers and pricing: see the official pricing page.
Can I use my own domain?
Multi-page websites support domain binding. Single generated pages do not (they live under the platform domain), but you can download any page as HTML and host it yourself, or export an entire site as a static site bundle that deploys to any server — you keep full ownership of the final form.
Will search engines and AI engines index the generated pages?
Yes. SEO / GEO optimization is on by default: pages are generated in a structure that search engines and AI engines can parse correctly. In 2026, "can AI engines retrieve and cite this content?" is an engineering question at the page level — and the platform handles that layer for you.
Can I add an AI chatbot to my own website?
Yes. The ChatBot module supports multiple bots, each bound to a specific document tree, with embed code for your own website — plus visitor profiling, scoring, and lead filtering: it doesn't just answer questions; it identifies which visitors are worth following up. Answers are restricted to your documents: if retrieval finds it, it answers; if not, it says so — it doesn't improvise.
Can I export my data? Will I be locked in?
No lock-in. Documents export as Markdown / PDF / DOC / PNG, pages download as HTML, full websites export as a static site bundle deployable anywhere, and knowledge entries and graph data are exportable — at every layer, your data stays yours.

Start growing your knowledge today.

Start Writing Free
No credit card. No download. Works in your browser.