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github.com
Deequ
Library built on top of Apache Spark for defining "unit tests for data". Measures data quality in large datasets with constraint verificatio...
Checked Oct 27, 2026Evidence completeness: evidenceREADME refreshed Oct 16, 2026
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Library built on top of Apache Spark for defining "unit tests for data". Measures data quality in large datasets with constraint verification, anomaly detection, and incremental validation. Used at Amazon for production data quality. Apache 2.0 licensed.
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Designers and product teams producing visual work — free to start, source available on GitHub.
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Known limitations
Teams that need a vendor SLA before adopting a free tool — check the project's support terms first.
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Catalogue data checked Oct 27, 2026.
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Deequ - Unit Tests for Data
GitHub / awslabs/deequ
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