Open Source Governance
Data governance only works if the catalog reflects reality, and reality changes every time someone ships a new pipeline - so the real test is whether lineage and metadata are captured automatically or rot the moment they are entered by hand. The open source tools here connect directly to your warehouses and pipelines to harvest schemas, ownership, and column-level lineage, keeping the map of where data comes from inside infrastructure you run rather than a SaaS that only sees what you remember to tell it.
OpenMetadata
Open-source metadata platform for data cataloging, discovery, governance, lineage, and quality
DataHub
Metadata platform for data discovery, governance, and observability across the data stack
Amundsen
Data discovery and metadata engine for finding tables, dashboards, streams, and other data assets
Open Collective
Online funding platform for open communities to raise money and share finances transparently
Marquez
Metadata service for collecting, aggregating, and visualizing data lineage and provenance
Apache Atlas
Metadata and data governance framework for Hadoop with lineage, audit, and RBAC and ABAC security
Deming
Open source ISMS tool for planning, monitoring, and reporting on ISO 27001 security measures
ISMS Builder
Self-hosted ISMS platform for ISO 27001, NIS2, GDPR, and BSI IT-Grundschutz