# Datadef (datadef.io)

Generates editable cloud architecture and ER diagrams from plain-English descriptions, SQL schemas, Terraform or repositories.

- Atlas card: https://inite.ai/en/atlas/datadef.io
- Site: https://datadef.io
- For: Data engineers, consultants and teams diagramming data platforms, cloud architecture and ER schemas.
- Categories: data
- Use 0/100 · alive 100/100

## Used for

- Generate ER diagrams from SQL, Prisma or DDL schemas
- Draw cloud architecture from Terraform modules and resources
- Keep diagrams synced with a Git repository's code

## Price

- from 8 USD/month (read 2026-10-17 on https://datadef.io/pricing)

## For developers

- MCP server: io.datadef/mcp (namespace; open on 2026-10-17, 39 tools)
- Read 2026-10-17

## Your data

- Certifications stated: none
- Training on your data: no (https://datadef.io/privacy)
- Read 2026-10-17

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Source: INITE Atlas, https://inite.ai/en/atlas/datadef.io. JSON: https://inite.ai/api/atlas/datadef.io. MCP: https://inite.ai/api/mcp (atlas_lookup).