Observable Plot — open-source Analytics BI

Updated 2026-09-03 · tool · Analytics BI · rev 1 · structured JSON

Concise grammar-of-graphics on D3

• Open source: yes (ISC)
• Self-hostable: yes
• Pricing model: free
• Best for: Developers and analysts accelerating exploratory data analysis with a concise visualization API.
• Last verified: 2026-09-04

Is Observable Plot open source?

Yes, Observable Plot is open source under the ISC license.

How much does Observable Plot cost?

Observable Plot is free to use.

Can I self-host Observable Plot?

Yes, Observable Plot can be self-hosted (the source is available under the ISC license).

• Source: github · github.com/observablehq
• Repository: https://github.com/observablehq/plot

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