Metadata Plane · Data Catalogues & Discovery
Open-source metadata platform for discovery, lineage, data quality and collaboration.
OpenMetadata is an open-source metadata platform that covers cataloguing, discovery, governance, data quality, observability and lineage in one application rather than as separate products. It is Apache 2.0 licensed and developed by Collate, which also sells a managed service.
It claims more than 130 connectors, with the documentation listing roughly 105 across databases, dashboards, pipelines, messaging, storage, search, ML models and APIs. Ingestion pipelines are set up in a few clicks and scheduled with Airflow, and a built-in profiler collects usage statistics and spots nulls and duplicates.
Search covers keyword and advanced Boolean queries, understands nested fields inside arrays and structs, and uses tier tags to rank assets by importance. Lineage spans databases, dashboards and pipelines, extends to column level, and can be extracted automatically, created through the Python SDK or edited by hand.
Governance is built in rather than bolted on: glossary, tags, tiers, ownership and role-based policies for who may change metadata, plus a testing framework for freshness, completeness and accuracy.
Collaboration is unusually strong for a catalogue. There is an activity feed, conversation threads and tasks, alerts to Slack, Teams or Google Chat, and metadata is versioned so changes can be reviewed and reverted. Version 2.0 arrived during 2026. Users named on the site include Wix, Yelp and Carrefour.
The same headings are used for every data catalogues & discovery entry, so two tools can be read side by side.
Open source
The project is free under the Apache 2.0 licence. Collate's managed service publishes named tiers, Free, Premium and Enterprise plus an AI add-on, with feature and user limits per tier, but no prices: every paid tier leads to a demo. The free tier is self-service.
OpenMetadata is developed by Collate, Inc., which owns the trademark and sells the managed service. It was co-founded by Suresh Srinivas, previously a co-founder of Hortonworks and chief architect for data at Uber, and Sriharsha Chintalapani, a Kafka and Storm committer who was previously an architect at Uber and Hortonworks. The company does not publish its founding year, head office or funding. The project itself is Apache 2.0 licensed and company-stewarded rather than hosted by a foundation.
Metadata Plane · Data Catalogues & Discovery
Catalogue and governance platform built on a federated knowledge graph, covering discovery, lineage, data products and contracts, with a marketplace and agent-facing access to its metadata.
Metadata Plane · Data Catalogues & Discovery
Enterprise data catalogue for search, discovery, stewardship and governance.
Metadata Plane · Data Catalogues & Discovery
Data discovery tool built at Lyft, with search ranked by usage. Archived in September 2026 and no longer maintained; listed for reference and migration planning.
Metadata Plane · Data Catalogues & Discovery
Active metadata platform for data cataloguing, discovery and governance.
Metadata Plane · Data Catalogues & Discovery
Data catalogue, documentation, lineage and quality platform pitched as lightweight, priced per editor with unlimited viewers and published list prices rather than quote-only.
Metadata Plane · Data Catalogues & Discovery
Data catalogue and governance platform positioning itself as a context engine, covering discovery, business meaning, lineage and AI-ready data context for both people and agents.
Metadata Plane · Data Catalogues & Discovery
Open-source metadata platform for discovery, lineage and governance, with a managed cloud offering.
Drafted with AI assistance and checked against the vendor’s own documentation.
