Smart Notes That
Build Your Second Brain
A free, offline-first note app that lives in your browser. Build your second brain with AI search, rich text, Markdown, and P2P sync — no servers, no sign-up.
Rich text and Markdown editor with LaTeX, Mermaid diagrams, ECharts, and multimedia. Import from AI tools, switch between source and visual modes.
Choose Your Plan
NoteRich Free
For daily note taking
- Full Markdown & Rich Text editor
- Core note-taking
- Up to 5 workspaces
- Basic search
- Local storage
- Small knowledge base RAG
- Unlimited workspaces
- Large knowledge base RAG
NoteRich Pro
Full power & ephemeral AI
- Unlimited workspaces
- PDF export & print
- Password-protected sharing
- Encrypted exports
- Large knowledge base RAG
- Formula SVG download
- ABC music playback
- No-watermark HTML export
- Priority support
Already have Pro?
Recover your license key with your email
Start Building Your Second Brain
— Free, Private, Online
Join thousands of users who trust NoteRich for private, powerful note-taking. Try in your browser — no installation, no credit card, your notes never leave your device.
Resources and Guides
Explore our in-depth articles on local-first note-taking, privacy architecture, and advanced productivity workflows.
- Building a Second Brain with RAG: No Best Solution, Only the Best Fit
- Memory-Centric RAG: Building a Second Brain
- Noterich Local Knowledge Base RAG Tutorial
- Transform Text into Visual Infographics with NoteRich AI
- Noterich Workspaces and Advanced Search Tutorial
- Noterich Rich Text vs Markdown How to Switch and Use Both
- Noterich P2P Sync Tutorial Cross-Device Without Cloud
- Noterich OCR Tutorial Scan Paper Notes to Digital Text
- Noterich Local-First AES-GCM Encryption Explained
- Noterich LaTeX Math Equations Guide How to Write Formulas
- How to Embed Interactive ECharts in Noterich
- Noterich Keyboard Shortcuts and Productivity Tips
- NoteRich Features and Benefits for Online Note-Taking
- How to Use Noterich Privacy AI to Summarize Documents Privately
- How to Use Mermaid.js for Flowcharts in Noterich – Complete Tutorial
- How to Insert Video and Attachments in Noterich