Best 4 Data Quality Tools for Prefect (2026)

    Discover the 4 best open-source and managed data quality tools for Prefect: 4 that read Prefect runs, tests, or lineage. 2 of them are open source.

    By Ari Bajo - Data Engineer turned Writer.

    Updated on November 5, 2026

    Tools list

    Monte Carlo

    Data + AI observability platform that monitors data pipelines and AI agents in production, with column-level lineage and AI troubleshooting agents.

    My Opinion

    Best for large data teams ready to invest in a mature, widely adopted platform that monitors both their data and their AI agents.

    Elementary Cloud

    Data & AI control plane by Boomi with anomaly detection monitors, column-level lineage, incident management, a data catalog, and AI agents.

    My Opinion

    Best for dbt-centric analytics teams that want managed monitoring, lineage, and AI agents for triage on top of their dbt tests.

    Elementary OSS

    Open-source dbt package by Boomi that adds anomaly detection tests and a CLI-generated data observability report to dbt projects.

    My Opinion

    Best for dbt teams that want free anomaly detection tests inside their existing dbt project, without a cloud account.

    Great Expectations

    Open-source Python data quality framework, stewarded by Fivetran, with 50+ declarative expectations to validate files, SQL databases, warehouses, and DataFrames.

    OSStestingpython-native
    My Opinion

    Best for Python data engineers who want a free, code-first testing library and don't need a managed UI, since GX Cloud is no longer available.

    Join the monthly newsletter

    Evaluating data tools in 2026?

    I curate the most comprehensive lists of data tools, up-to-date comparison tables, and actionable market guides for data teams. More useful than a Gartner report. More reliable than asking AI. Next up: Data Governance, Data FinOps, Data Orchestration...

    No spam. Unsubscribe anytime.

    By Ari Bajo - Data Engineer turned Writer.

    Frequently Asked Questions

    Which data quality tools work with Prefect?
    Monte Carlo, Elementary Cloud, Elementary OSS, and Great Expectations work with Prefect. Read more on my data quality tool market guide.
    How can I edit this tools list?
    If you think a tool belongs here or you want to suggest an edit, I would love to hear from you. You can fill out the feedback form or DM on LinkedIn.