Observable
The modern data visualization and notebook platform for the web
Founded
2016
Starting Price
$0
Category
Analytics & BI
Last updated April 27, 2026
About Observable
Observable is a cloud-based, collaborative notebook platform for data visualization, exploration, and analysis. Created by Mike Bostock (the creator of D3.js), Observable lets developers and data analysts weave together JavaScript, Markdown, HTML, and SQL in reactive notebooks that update automatically as you interact with them. Teams use Observable to build interactive dashboards, exploratory analyses, and production-ready data apps — all in the browser with no backend infrastructure required.
Pros & Cons
Pros
- Reactive execution model makes interactive data exploration fast and intuitive — no manual re-running required
- Created by the author of D3.js, with first-class support for the world's most powerful data visualization ecosystem
- Fully browser-based with no local setup — connect to databases and start building visualizations immediately
- Massive community gallery with hundreds of thousands of forkable notebooks for learning and inspiration
- Observable Framework enables publishing production data apps as fast static sites
Key Features
Reactive Notebooks
Cells re-run automatically when data or inputs change, making it easy to build live, interactive explorations without manual refreshes
Observable Plot & D3
Built-in support for Observable Plot, D3.js, and other leading visualization libraries for creating rich, expressive charts and graphics
SQL & Database Connections
Connect directly to Snowflake, DuckDB, PostgreSQL, Databricks, and other data sources without leaving the notebook
Multiplayer Editing
Collaborate in real time with teammates via multiplayer code editing, comments, and automatic version history
Observable Framework
Build and deploy production-grade data apps and dashboards as static sites using the open-source Observable Framework
AI Assist
AI-powered code completion and generation helps you write JavaScript, SQL, and visualization code faster
Forking & Versioning
Git-style forking and version history let you freely experiment and roll back changes at any time
Pricing
Free
$0/month
- Unlimited public and private notebooks
- AI Assist in notebooks
- Database and API connections
- Version control
- Community forum support
Best For
Interactive Data Exploration
Rapidly prototype charts and dashboards with live data connections and reactive inputs like sliders, dropdowns, and search boxes
Data Journalism & Storytelling
Combine narrative text with dynamic visualizations to publish interactive reports and explanatory data stories
Team Analytics Dashboards
Build and share scheduled, always-fresh dashboards connected to Snowflake, Postgres, or DuckDB for business intelligence
Teaching & Learning Data Visualization
Fork community notebooks, experiment with live code, and learn D3 or Observable Plot in a hands-on browser environment
