Tools

Data catalogs & discovery

11 tools compared: how each is priced, where it runs, and what to consider instead.

Tool Pricing model Free tier Open source
Alation Enterprise data catalog with AI-assisted search, lineage and stewardship workflows for finding and trusting data. Quote only No No
Amundsen Open-source, search-first data discovery catalog originally built at Lyft; development has slowed significantly since 2024. Open source + paid Yes Yes
Apache Atlas Apache open-source metadata and governance framework providing classification, lineage and search for Hadoop-era platforms. Open source + paid Yes Yes
Atlan API-first, AI-assisted metadata catalog with automated lineage and Slack-style collaboration for data teams. Quote only No No
Coalesce Catalog AI-driven data catalog, formerly Castor/CastorDoc, now sold as Coalesce Catalog after Coalesce's February 2025 acquisition. Quote only No No
Collibra Data Intelligence Cloud combining catalog, business glossary, governance workflows and lineage for regulated enterprises. Quote only No No
data.world Cloud data catalog built on a knowledge-graph model with built-in SQL querying and a business glossary. Quote only No No
DataHub Open-source metadata platform for search, lineage and governance, with a managed DataHub Cloud offered by Acryl Data. Open source + paid Yes Yes
OpenMetadata Open-source unified metadata platform covering catalog, lineage, data quality and observability in one schema. Free tier + paid Yes Yes
Secoda AI-assisted data catalog combining search, lineage and monitoring with a natural-language SQL assistant. Quote only No No
Select Star Automated data catalog that documents warehouse tables, dashboards and column-level lineage with minimal manual tagging. Quote only No No

In the index now