Best Open-source Data Catalogs & Governance tools

OpenMetadata

Unified platform for data discovery, governance, and observability

DataHub

Unified metadata platform for modern data discovery and governance

CKAN

Powerful platform for publishing, sharing, and managing open data

Apache Gravitino

Geo-distributed federated metadata lake for unified data governance

ODD Platform

Unified data discovery, lineage, and observability platform

Amundsen

Google‑style search engine for data assets across your organization

Apache Atlas

Unified metadata governance for Hadoop and enterprise data ecosystems

Marquez

Centralized metadata service for data lineage and lifecycle

Magda

Federated data catalog with scalable search and Kubernetes‑native deployment