Home Tools Quality & Governance Tool Pricing model Free tier Open source Alation Enterprise data catalog with AI-assisted search, lineage and stewardship workflows for finding and trusting data. Quote only No No Amundsen Open-source, search-first data discovery catalog originally built at Lyft; development has slowed significantly since 2024. Open source + paid Yes Yes Apache Atlas Apache open-source metadata and governance framework providing classification, lineage and search for Hadoop-era platforms. Open source + paid Yes Yes Atlan API-first, AI-assisted metadata catalog with automated lineage and Slack-style collaboration for data teams. Quote only No No Coalesce Catalog AI-driven data catalog, formerly Castor/CastorDoc, now sold as Coalesce Catalog after Coalesce's February 2025 acquisition. Quote only No No Collibra Data Intelligence Cloud combining catalog, business glossary, governance workflows and lineage for regulated enterprises. Quote only No No data.world Cloud data catalog built on a knowledge-graph model with built-in SQL querying and a business glossary. Quote only No No DataHub Open-source metadata platform for search, lineage and governance, with a managed DataHub Cloud offered by Acryl Data. Open source + paid Yes Yes OpenMetadata Open-source unified metadata platform covering catalog, lineage, data quality and observability in one schema. Free tier + paid Yes Yes Secoda AI-assisted data catalog combining search, lineage and monitoring with a natural-language SQL assistant. Quote only No No Select Star Automated data catalog that documents warehouse tables, dashboards and column-level lineage with minimal manual tagging. Quote only No No
Tool Pricing model Free tier Open source AWS Clean Rooms AWS-native clean room for SQL and Spark analysis across parties' data, with an optional differential-privacy add-on. Usage-based No No Decentriq Confidential-computing clean room that runs analysis inside hardware-encrypted enclaves so no party, including Decentriq, can see the raw data. Quote only No No InfoSum Decentralized data clean room where partners match and analyze audiences without either side's raw data ever leaving its owner. Quote only No No LiveRamp Clean Room LiveRamp's clean room, built on the acquired Habu technology, for cross-cloud data collaboration tied to LiveRamp's identity graph. Quote only No No Optable Identity and clean-room platform for publishers and advertisers to collaborate on audiences without exposing raw data. Quote only No No Snowflake Data Clean Rooms Clean room capability built into Snowflake's platform, keeping each party's raw data inside its own Snowflake account. Usage-based No No
Tool Pricing model Free tier Open source BigID Data security and privacy platform for discovering, classifying and managing sensitive data across the enterprise. Quote only No No Immuta Data access control platform that automates policy enforcement and dynamic masking across cloud data warehouses. Quote only No No Ketch Consent and privacy management platform with published self-serve tiers plus programmable data-rights automation add-ons. Free tier + paid Yes No OneTrust Privacy, security and governance suite covering consent management, DSAR automation and third-party risk at enterprise scale. Quote only No No Osano Consent management and privacy compliance platform with published self-serve pricing alongside enterprise plans. Free tier + paid Yes No Privacera Cloud data access governance platform built on Apache Ranger for unified policy enforcement across multi-cloud data stores. Quote only No No Securiti Modular "DataAI Command Center" unifying data discovery, privacy, security and AI governance on one platform. Quote only No No Transcend Privacy infrastructure platform automating data subject rights, consent and AI data governance through API-first orchestration. Quote only No No
Tool Pricing model Free tier Open source Acceldata Enterprise data observability platform covering data reliability, pipeline performance and cloud data cost optimization. Quote only No No Anomalo Data quality monitoring platform using unsupervised ML to detect anomalies without manually written rules, deployable in-VPC. Quote only No No Bigeye Data observability platform that auto-generates quality metrics and anomaly alerts across warehouses and lakes. Quote only No No Elementary dbt-native, open-source-core data observability tool that turns dbt test results and metadata into monitoring and alerts. Quote only Yes Yes Lightup Enterprise data quality and observability platform with agent-based scanning that keeps data inside the customer's environment. Quote only No No Metaplane Lightweight data observability tool with a genuine free tier and per-table usage pricing, including Snowflake credit billing. Free tier + paid Yes No Monte Carlo Data observability platform using ML-based anomaly detection to catch broken pipelines before they reach dashboards. Quote only No No Sifflet End-to-end data observability platform combining anomaly detection, lineage and governance controls for data and AI assets. Quote only No No
Tool Pricing model Free tier Open source cuallee Lightweight, DataFrame-agnostic Python library for writing data quality checks with one API across engines. Open source + paid Yes Yes Deequ Open-source Scala/Spark library from AWS for defining unit tests that measure data quality on large datasets. Open source + paid Yes Yes DQOps Data quality and observability platform with 150+ built-in checks, configurable via UI or YAML, with daily automated monitoring. Subscription No No Great Expectations Open-source Python framework for defining, running and documenting data quality tests ("expectations") in pipelines. Free tier + paid Yes Yes Pandera Open-source Python library that validates dataframes against a declared schema, catching bad data before it reaches a model or report. Open source + paid Yes Yes Soda Data quality testing platform combining a check-as-code language (SodaCL) with a SaaS UI for monitoring and collaboration. Free tier + paid Yes No
Tool Pricing model Free tier Open source MOSTLY AI Synthetic data platform that generates statistically representative tabular/relational data with built-in differential privacy. Quote only No No Synthesized Synthetic and test-data platform for generating privacy-preserving, statistically representative data to develop and validate ML models. Quote only No No Synthetic Data Vault Open-source Python library for generating synthetic tabular, relational and time-series data from real datasets you run yourself. Open source + paid Yes Yes Syntho Synthetic test-data platform combining AI-generated, rule-based and masked data, deployed inside a customer's own environment. Quote only No No Tonic.ai Suite of synthetic/de-identified test-data tools (Structural, Textual, Fabricate) for databases, unstructured text and mock data. Free tier + paid Yes No
Tool Pricing model Free tier Open source Datacoves Managed dbt Core and Airflow development environment deployed inside the customer's own cloud, an alternative to dbt Cloud. Quote only No No dbt-checkpoint Open-source pre-commit hook library that enforces naming, documentation and testing standards on dbt models before they merge. Open source + paid Yes Yes dbt_project_evaluator Official dbt Labs package that audits a dbt project's modeling, testing, documentation and structure against best practices. Open source + paid Yes Yes Paradime AI-assisted development environment for dbt Core: an IDE, CI/CD and cost-monitoring platform, not a testing tool itself. Subscription No No Recce Open-source data-diffing agent that reviews the downstream impact of a dbt pull request before it merges. Free tier + paid Yes Yes SQLFluff Open-source SQL linter and auto-formatter with a dedicated templater for dbt projects across multiple SQL dialects. Open source + paid Yes Yes