Show HN: Datadef.io – Canvas for data lineage and metadata management
Show HN (score: 7)Description
The problem:
- Data models (dbt, SQL, warehouses) often grow into a tangled mess of tables, joins, and undocumented assumptions. - Lineage is either scattered across tools or missing entirely. - Documentation is usually an afterthought (and gets outdated fast).
Datadef.io aims to fix that by providing:
- Interactive canvas to map tables, relationships, and indicators. - Automatic lineage visualization to trace dependencies. - Metadata management: define table/column-level details, ownership, and KPIs. - AI-generated documentation that stays in sync with your models. - Export/share features so asset managers, analysts, and other teams don’t get lost in spreadsheets or PDFs.
It’s still early, and I’d love feedback from the HN community. In particular:
What’s missing for you in lineage/metadata/documentation tools?
How would you want to integrate a tool like this into your workflow (dbt, Databricks, Power BI, etc.)?
I’d really appreciate your thoughts, feature requests, and criticism.
Thanks!
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