Data Quality GitHub Repositories (2026) · Open Source Tools

The Open Context Layer for Data and AI , OpenMetadata is the open platform for building trusted data context and business semantics for humans, AI assistants, and agents.

Refine high-quality datasets and visual AI models

Open-source ETL/ELT you deploy on your own servers or cloud. Built on DuckDB: no-code/low-code visual pipelines or SQL, 385 components, dbt, CDC, data quality, reverse ETL, lineage, MCP for AI agents. No vendor cloud, no per-row billing.

Zero-config entity resolution feeding a durable identity layer: messy records from any source become stable golden entities, a Customer 360 with provenance, merge/split and audit. Fellegi-Sunter beats hand-tuned Splink. Arrow-native/Rust, 250M rows in 11.2 min. Python + edge TypeScript (WASM), SQL-native in Postgres & DuckDB, 97 MCP tools + REST.

Installer and quickstart for DataKitchen's open-source DataOps TestGen and DataOps Observability. Installs TestGen with Docker Compose or pip, Observability with Docker Compose.

Open-Source Software, Tutorials, and Research on Data-Centric AI 🤖

The Open Source Feature Store for AI/ML

AtroCore is an enterprise-ready, highly configurable Business Application Platform for managing complex data, integrating systems, and building custom business applications. It provides ready-made solutions for Master Data Management (MDM), Product Information Management (PIM), Digital Asset Management (DAM), and more.

Data validation toolkit for assessing and monitoring data quality.

A SQL transformation engine that type-checks your whole pipeline and catches breaking changes before they run — branches, replay, column-level lineage, compile-time contracts, per-model cost. Adapters: Databricks, Snowflake, BigQuery, DuckDB. Single static Rust binary. Apache 2.0.

Open-source data contract testing for Snowflake, Databricks, BigQuery, Kafka & 15 more. Built on the Open Data Contract Standard (ODCS). MIT.

Scalable data pre processing and curation toolkit for LLMs

Human-feedback and data-governance infrastructure for RSI research: annotation, review, provenance and frozen dataset candidates.