Alation
Data catalog platform for data discovery, governance, and lineage
Open-Source Projects
Discover top open-source software, updated regularly with real-world adoption signals.
Discover top open-source software, updated regularly with real-world adoption signals.
Unified platform for data discovery, governance, and observability
OpenMetadata delivers a unified metadata repository, column‑level lineage, 84+ connectors, and collaborative tools for data discovery, governance, quality, and observability—all in an open‑source platform.
When teams consider OpenMetadata, these hosted platforms usually appear on the same shortlist.
Looking for a hosted option? These are the services engineering teams benchmark against before choosing open source.
Centralized Data Catalog
Teams locate tables, dashboards, and pipelines from a single searchable UI, reducing time spent searching for assets.
Automated Data Lineage Tracking
Engineers visualize column‑level lineage across warehouses and pipelines, enabling impact analysis and compliance reporting.
No‑Code Data Quality Monitoring
Business users define tests and receive alerts without writing code, improving data trust and reducing manual checks.
Cross‑Tool Metadata Integration
Connectors ingest metadata from Snowflake, Looker, Kafka, Airflow, and more, feeding a unified repository for governance.
It offers 84+ connectors for databases, data warehouses, dashboard services, messaging systems, and pipeline tools, plus APIs for custom integration.
Column‑level lineage is stored in the metadata graph and displayed via an interactive UI with a no‑code editor for editing and filtering.
A sandbox environment is available for trial; production deployments are self‑hosted using Docker or Kubernetes as described in the documentation.
OpenMetadata is released under the Apache‑2.0 license.
Contributions are welcomed via the GitHub repository; see the CONTRIBUTING guide and join the Slack community for assistance.
Project at a glance
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