Atlan vs OpenMetadata

Side-by-side from the Top 11 ranking of The 11 Best Data Catalog Software (2026). Last verified July 19, 2026.

The short answer

Atlan ranks higher on Top 11 (#3 vs #11) for Data engineers, analysts, and governance leaders who need to find, trust, and govern data assets across warehouses, lakes, and BI tools. Best active-metadata catalog for cloud stacks.

At a glance

AtlanOpenMetadata
Top 11 rank#3 / The 11 Best Data Catalog Software (2026)#11 / The 11 Best Data Catalog Software (2026)
Score (out of 9.4)8.97.5
Best forActive metadata for the modern stackOpen-source self-hosted catalog
Pricing$$$ (Quoted annually, user based)$ (Open source; hosting and run cost only)
HQNew York, USADistributed (open source, Collate)
Founded20182021

Atlan

Best active-metadata catalog for cloud stacks.

atlan.com/

See full entry in The 11 Best Data Catalog Software (2026)

OpenMetadata

Open-source catalog you own and self-host.

open-metadata.org/

See full entry in The 11 Best Data Catalog Software (2026)

Methodology and scoring weights live at /methodology. No vendor pays for placement — see about.