Notion's Block-Based Architecture

GENERALArchitecture
Notion's Block-Based Architecture — GENERAL architecture diagram

About This Architecture

How Notion's flexible block model enables pages, databases, and custom views. Shows tree-structured Block Storage in PostgreSQL, Real-Time WebSocket sync with operational transforms, Elasticsearch for full-text block search, hierarchical permission service, integration platform for third-party connections, and offline-first SQLite cache for mobile/desktop.

Architecture prompt

How Notion's flexible block model enables pages, databases, and custom views. Shows tree-structured Block Storage in PostgreSQL, Real-Time WebSocket sync with operational transforms, Elasticsearch for full-text block search, hierarchical permission service, integration platform for third-party connections, and offline-first SQLite cache for mobile/desktop.

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About This Architecture

How Notion's flexible block model enables pages, databases, and custom views. Shows tree-structured Block Storage in PostgreSQL, Real-Time WebSocket sync with operational transforms, Elasticsearch for full-text block search, hierarchical permission service, integration platform for third-party connections, and offline-first SQLite cache for mobile/desktop.

Notion's Block-Based Architecture

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Created by

February 9, 2026

Updated

May 15, 2026 at 8:20 PM

Type

architecture

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