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The Best Machine Learning Data Catalog Software in 2026

We researched products using their official websites, including pricing pages, plan tables, and product documentation. Rankings focus on the category’s core job, value for money, and verified features that help teams document and discover machine learning data assets. This guide covers machine learning data catalog software.

Our top picks

  1. Top ranked

    Databricks Unity Catalog#1 of 14
    9.2/10

    A Databricks-native catalog for tracing, governing and sharing data and AI assets.

    Visit DatabricksVerdict →

  2. Runner-up

    BigID Data + AI Catalog#2 of 14
    8.8/10

    An enterprise catalog for discovering, governing, and tracing data and AI assets.

    Pricing on request

    Visit BigIDVerdict →

  3. Top-ranked free plan

    OpenML#11 of 14
    7.1/10

    A free, open-source research platform for tracking runs and versioned datasets.

    Free plan

    Visit OpenMLVerdict →

Advertiser disclosure: iTechGuides is reader-supported. Vendors can pay for top positions in our rankings and for a place on other products' pages, and we may earn a commission when you click some links. Bought places stand at the number bought; this page and our disclosure say so. Paying vendors may get a fuller, more detailed review from our editors, and that review can change their score. How we rank.

The full ranking 14 tools, best first

14 tools
  1. Databricks Unity Catalog

    Best forEnterprises standardized on Databricks

    A Databricks-native catalog for tracing, governing and sharing data and AI assets.

    Our Databricks Unity Catalog verdict → Visit DatabricksFor vendors Sponsor this spot · #1 · $149/mo →
    9.2/10★★★★★
    Visit Databricks
  2. BigID Data + AI Catalog

    Best forEnterprises cataloging diverse AI data

    An enterprise catalog for discovering, governing, and tracing data and AI assets.

    • ML data lineage
    • Data quality checks
    • Access policy controls
    Pricing on request Our BigID Data + AI Catalog verdict → Visit BigIDFor vendors Sponsor this spot · #2 · $99/mo →
    8.8/10★★★★☆
    Visit BigID
  3. Snowflake Horizon Catalog

    Best forSnowflake-centric data and AI teams

    A cloud data catalog with lineage, governance, and quality tools for Snowflake-centric teams.

    30-day trial Our Snowflake Horizon Catalog verdict → Visit SnowflakeFor vendors Sponsor this spot · #3 · $79/mo →
    8.6/10★★★★☆
    Visit Snowflake
  4. DataHub Cloud

    Best forEnterprise teams prioritizing lineage across their stack

    A managed catalog for tracing data lineage across warehouses, pipelines and BI.

    Pricing on request Our DataHub Cloud verdict → Visit DataHubFor vendors Sponsor this spot · #4 · $69/mo →
    8.4/10★★★★☆
    Visit DataHub
  5. OpenMetadata

    Best forOpen-source teams needing broad cataloging

    A broad open-source catalog for teams that need lineage and metadata across data systems.

    Open source Our OpenMetadata verdict → Visit OpenMetadataFor vendors Sponsor this spot · #5 · $59/mo →
    8.2/10★★★★☆
    Visit OpenMetadata
  6. Alation Data Catalog

    Best forMid-market and enterprise data governance teams

    A broad enterprise catalog for discovery, lineage and governance, with a fit adjacent to ML catalogs.

    Pricing on request Our Alation Data Catalog verdict → Visit Alation
    8.0/10★★★★☆
    Visit Alation
  7. Atlan Lakehouse

    Best forModern lakehouse metadata teams

    A cloud metadata platform with semantic search, lineage, and time-travel history.

    Pricing on request Our Atlan Lakehouse verdict → Visit Atlan
    7.9/10★★★★☆
    Visit Atlan
  8. IBM watsonx.data

    Best forHybrid lakehouse governance deployments

    A hybrid lakehouse with broad catalog and governance coverage for AI and analytics.

    Our IBM watsonx.data verdict → Visit watsonx.data
    7.8/10★★★★☆
    Visit watsonx.data
  9. Collibra

    Best forLarge enterprises needing governance depth

    A governance-rich data catalog for enterprises, with a broader focus than ML cataloging alone.

    Pricing on request Our Collibra verdict → Visit Collibra
    7.6/10★★★★☆
    Visit Collibra
  10. Amazon SageMaker Catalog

    Best forAWS teams cataloging ML assets

    A cloud catalog for AWS teams managing data, models, lineage, quality, and access.

    • ML data lineage
    • Data quality checks
    • Access policy controls
    Our Amazon SageMaker Catalog verdict → Visit AWS
    7.3/10★★★★☆
    Visit AWS
  11. OpenML

    Best forResearchers tracking experiments and datasets

    A free, open-source research platform for tracking runs and versioned datasets.

    • Dataset versioning
    Free plan Our OpenML verdict → Visit OpenML
    7.1/10★★★★☆
    Visit OpenML
  12. Hugging Face Hub

    Best forIndividuals needing low-cost model and dataset repos

    A low-cost, Git-based home for model and dataset repositories, with stronger team controls on paid tiers.

    Free plan Our Hugging Face Hub verdict → Try Hugging Face Hub
    6.9/10★★★☆☆
    Try Hugging Face Hub
  13. Informatica Cloud Data Marketplace

    Best forEnterprises running governed data marketplaces

    A governed enterprise marketplace for publishing, finding and provisioning data products.

    Pricing on request Our Informatica Cloud Data Marketplace verdict → Visit Informatica
    6.4/10★★★☆☆
    Visit Informatica
  14. Microsoft Defender for Business

    Best forSmall businesses needing endpoint security

    A focused endpoint security subscription, not a machine learning data catalog.

    30-day trial Our Microsoft Defender for Business verdict → Visit Microsoft
    3.0/10★★☆☆☆
    Visit Microsoft

No tools match those filters.

Compare at a glance

#ToolFree planPaid fromScore
1Databricks Unity Catalog9.2
2BigID Data + AI CatalogNo8.8
3Snowflake Horizon Catalog8.6
4DataHub CloudNo8.4
5OpenMetadataFree8.2
6Alation Data Catalog8.0
7Atlan Lakehouse7.9
8IBM watsonx.dataNo$83.30/mo7.8
9Collibra7.6
10Amazon SageMaker CatalogNo7.3
11OpenMLYesFree7.1
12Hugging Face HubYes$9/mo6.9
13Informatica Cloud Data Marketplace6.4
14Microsoft Defender for BusinessNo$3/user/mo3.0

Head-to-head All 24 comparisons →

Explore other topics All topics →

How we rank machine learning data catalog software

Every tool on this page was researched by iTechGuides Editors from its official website — pricing pages, plan tables and product documentation. We rank on how well each one does this category's core job, what the free or entry plan includes, and where it falls short. Where we have enough verified facts, the score out of 10 is a rubric — job fit, value and how much we could verify — shown with its breakdown on every tool's page; a tool we have not verified enough to score yet shows its rank without a number. Scores are re-checked when a product changes its plans. Read the full editorial policy, or submit a tool we missed.

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update