OpenMetadata – OSS platform for data discovery observability governance
Hi HN, OpenMetadata is an open-source metadata platform built to solve complex data management challenges and deliver high quality data assets. It’s based on the experiences of solving the data problems encountered at companies like Uber and Hortonworks. Our team includes the creators of Hadoop, Atlas, and Uber Databook, as well as committers/PMC of projects like Apache Kafka and Storm. Unified Metadata Platform * Unified: A single platform for data discovery, governance, and data observability. * API-first: Standardized metadata specifications using well-designed REST APIs, crucial for…
In plain words
OpenMetadata is an open-source platform for data discovery, governance, and observability built by former engineers from Uber and Hortonworks. It provides a unified system for managing metadata across data infrastructure through standardized REST APIs, consolidating functionality typically scattered across separate data catalog, quality, and governance tools. The platform serves data teams managing complex data environments and eliminates the need to maintain multiple siloed tools for different data management tasks.
written from the facts on this page · September 2026
From the sources
In the maker’s words, at launch
Hi HN, OpenMetadata is an open-source metadata platform built to solve complex data management challenges and deliver high quality data assets. It’s based on the experiences of solving the data problems encountered at companies like Uber and Hortonworks. Our team includes the creators of Hadoop, Atlas, and Uber Databook, as well as committers/PMC of projects like Apache Kafka and Storm. Unified Metadata Platform * Unified: A single platform for data discovery, governance, and data observability. * API-first: Standardized metadata specifications using well-designed REST APIs, crucial for anyone consuming or pushing metadata for modern data teams. * Metadata platform: The data catalog is just one of the many applications of metadata built on the platform, vs different siloed data catalog tools, quality tools, governance tools, etc. that each have to be set up and maintained. Please check out more details about our project at https://open-metadata.org and join our community in Slack https://slack.open-metadata.org. You can also try out our live product sandbox with demo data at https://sandbox.open-metadata.org/.
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