Best Data Quality Tools (2026): Top 10 Compared
Data quality tools check that the data in warehouses, lakes and pipelines is complete, accurate, fresh and consistent, and alert the owners when it is not. This page covers products whose main job is testing, monitoring and fixing data. Moving data between systems is covered on the data integration platforms and ETL tools pages, and finding and documenting data on the data catalog software page. The ten products below fall into three groups. Soda, Anomalo, Ataccama ONE, DQLabs and Informatica are data quality platforms that combine rules, profiling and anomaly detection. Monte Carlo, Bigeye, Sifflet and Elementary lead with data observability: automated monitoring of freshness, volume, schema and lineage. Great Expectations is an open-source testing framework. Seven of the ten publish a figure or a no-charge statement.
Order is not a ranking. How entries are ordered.
On this page
Compare at a glance
Select a vendor for details and sources. Scroll the table horizontally on smaller screens.
| Vendor | Consider for | Pricing notes | Standout |
|---|---|---|---|
| Sodamid-market | Data teams combining pipeline tests, data contracts and observability in one platform | Free plan at $0 a month; Team $750 a month, annual billing and volume discounts available; Enterprise custom Checked Sep 2026 | Collaborative data contracts let data producers and consumers agree checks at the source |
| Anomaloenterprise | Enterprises wanting no-code, ML-based monitoring that looks inside table contents | No usable published price; AWS Marketplace lists 12-, 24- and 36-month contracts in units the listing does not define; quoted Checked Sep 2026 | Unsupervised machine learning checks the values inside tables, not only metadata |
| Ataccama ONEenterprise | Regulated enterprises running data quality alongside master and reference data management | No published figure; tiers set by named users, data objects and active quality checks, with soft limits and unlimited viewers Checked Sep 2026 | ONE AI Agent plans and runs whole data quality workflows from a prompt |
| Great Expectations (GX Core)open-source | Python data teams writing data quality tests as code in their own pipelines | GX Core is open source under Apache 2.0 with no licence fee; GX Cloud lists a free Developer option, Team and Enterprise unpriced Checked Sep 2026 | Expectations act as readable unit tests for data, with auto-generated documentation of results |
| Monte Carloenterprise | Enterprises wanting broad data and AI observability with automated root cause analysis | $50,000 for a 12-month credit contract on AWS Marketplace, overage $0.01 per credit, fees non-cancellable; direct tiers quoted Checked Sep 2026 | Field-level lineage and agents for triage and root cause across data and AI |
| Bigeyeenterprise | Enterprises needing data observability with lineage into legacy and modern systems | $45,000 a year for 100 actively monitored tables or $75,000 for 300 on AWS Marketplace, no refunds; other packages quoted Checked Sep 2026 | Lineage-enabled observability plus sensitive data scanning and AI policy enforcement |
| Siffletmid-market | Data teams wanting observability, catalog and lineage together with self-serve entry | $48,000 for 12 months of platform credits on AWS Marketplace, fees non-cancellable; site tiers by monitored assets are quoted Checked Sep 2026 | Built-in data catalog and lineage alongside monitoring, with hybrid or self-hosted enterprise deployment |
| DQLabsenterprise | Enterprises wanting unlimited users and assets on one data quality and observability package | $140,000 platform fee for 12 months on AWS Marketplace, non-cancellable; add-ons such as extra data sources raise the fee Checked Sep 2026 | No per-seat, per-row or per-asset fees; scope is set by connected data source types |
| Elementaryspecialist | Analytics engineering teams running dbt that want observability inside their dbt project | Elementary OSS is open source with no licence fee; Cloud plans by seats and tables, quoted, with a 30-day free trial Checked Sep 2026 | dbt-native tests and monitors configured as code, with no Cloud access to the data itself |
| Informatica Data Qualityenterprise | Large enterprises standardising and cleansing data across many systems within Informatica's cloud | No published figure; consumption-based pricing within Informatica's Intelligent Data Management Cloud, quoted Checked Sep 2026 | AI-generated rules plus cleansing and standardisation, not only monitoring |
These comparisons draw on public product information, not hands-on testing of every tool. Source records identify available references and checks; missing evidence is marked. Buyer fit is an editorial assessment, not a measured performance score. How to use this research.
Data quality tools test and monitor the data that flows through warehouses, lakes and pipelines so that errors are caught before they reach reports, applications or AI models. They check for missing, late, duplicated or out-of-range values, detect schema changes and unusual shifts, and help teams trace a problem back to its source.
The ten products compared here approach the problem in different ways. Soda, Anomalo, Ataccama ONE, DQLabs and Informatica Data Quality are data quality platforms that combine rules, profiling and anomaly detection, and some also cleanse and standardise data. Monte Carlo, Bigeye, Sifflet and Elementary lead with data observability: automated monitoring of freshness, volume, schema and lineage. Great Expectations is an open-source framework for writing data tests in Python.
Every entry was checked against the vendor’s own pages or official marketplace listings in September 2026. Soda, Great Expectations, Monte Carlo, Bigeye, Sifflet, DQLabs and Elementary publish a figure or a no-charge statement; Anomalo, Ataccama and Informatica are quoted.
Vendor details and trade-offs
Soda describes itself as a data quality platform that gives data teams a shared workflow to monitor quality, catch problems early and act on them. Its documentation splits the work into two approaches. Data observability is reactive: ML-powered monitoring of metrics such as freshness, row counts and null values, with alerts when values move away from historical norms. Data testing is proactive: checks on known expectations that run during development or in CI/CD so that bad data does not reach production.
Data contracts connect the two. They make expectations about a dataset explicit and let the teams that produce data and the teams that consume it agree on them at the source. Soda's product pages also list record-level diagnostics, lineage and impact analysis, automated record-level resolution and pipeline fixing, an MCP server and use cases including cloud migration reconciliation and BCBS 239 compliance.
Soda publishes its prices, which is uncommon in this category.
Potential strengths
- Published self-serve prices, including a free plan
- Documents both data testing in CI/CD and anomaly monitoring in production
Trade-offs
- Data contracts, the no-code interface and SSO sit in the custom-priced Enterprise plan
- Usage beyond included processing units is billed separately on Team
- Product reference
- Product documentation
- Pricing source
- Billing terms: Monthly plan price; annual billing and volume discounts available
- Source review: checked Sep 25, 2026
- Vendor confirmation: not confirmed
Anomalo sells automated data quality monitoring built on unsupervised machine learning. Its AWS Marketplace listing describes checks that automatically identify missing and anomalous data and that look inside tables rather than only at their metadata, configured either without code or through an API.
The company now presents the product as a set of AI agents. A Table Observability Agent monitors data availability, freshness and schema consistency. A Data Quality Agent lets users describe what good data looks like in natural language and then watches for deviations that could break dashboards, reports or AI models. A Data Insights Agent reports noteworthy changes in the data without being asked, and a Conversational Analytics Agent answers questions about the data. A Data Issue First Responder Agent, which would triage alerts and open tickets in ServiceNow or Jira, is listed as coming soon.
Anomalo positions the product for enterprises in sectors such as financial services, insurance and media.
Potential strengths
- Deep monitoring of table contents rather than only freshness and volume
- No-code setup alongside an API
Trade-offs
- No meaningful published price
- Several of its announced agents are marked as coming soon
- Product reference
- Pricing source
- Billing terms: Contract units for 12, 24 or 36 months (AWS Marketplace)
- Source review: checked Sep 25, 2026
- Vendor confirmation: not confirmed
Ataccama ONE is a data trust platform that manages data quality end to end, from finding problems to fixing them at the source. Ataccama states that it was named a Leader in the 2026 Gartner Magic Quadrant for Augmented Data Quality Solutions for the fifth consecutive time.
The data quality module monitors, cleanses and standardises data across systems, with rules written once and applied anywhere. The same platform adds a data catalog, data observability for pipeline anomalies, lineage from source to consumption, reference data management and master data management with AI-powered matching. Ataccama pitches the combination to regulated organisations that need audit-ready data for rules such as Basel, Solvency and the Dodd-Frank Act.
The ONE AI Agent is presented as a digital data steward. A user writes a prompt and the agent plans and runs the workflow: generating rules, creating test and reference data, enriching metadata and writing documentation. Ataccama says it cuts the time to create and apply a single rule from nine minutes to one.
Potential strengths
- Pricing model is documented, with soft limits and no retroactive charges
- Master and reference data management available in the same platform
Trade-offs
- No published price
- Broad platform scope is more than a team needing only pipeline tests will use
- Product reference
- Pricing source
- Billing terms: Not recorded
- Source review: checked Sep 25, 2026
- Vendor confirmation: not confirmed
Great Expectations is an open-source Python framework for testing data. Its central idea is the Expectation: an expressive, extensible unit test for data, such as a column never being null or values falling within a range. Expectations give engineers and business users a shared language for data rules, and the framework can generate documentation for each set of validation results so that everyone sees the same outcome. GX Core supports Python 3.10 to 3.13 and is released under the Apache 2.0 licence.
GX Cloud, the hosted product, added collaborative workflows, policy management and governance on top of GX Core. The company is in transition. In May 2026 it announced that FICO had agreed to acquire GX Cloud as the basis of FICO's data quality offering, and that Fivetran would become steward of GX Core, which is to remain an open-source, community-driven project.
Buyers adopting GX Core today are choosing an open-source framework; the future of the hosted product depends on FICO.
Potential strengths
- No licence fee for the open-source core
- Tests live in code and version control alongside the pipeline
Trade-offs
- Ownership is changing: GX Cloud is going to FICO and GX Core stewardship to Fivetran
- No built-in anomaly monitoring in the open-source core; teams host and run it themselves
- Product reference
- Product documentation
- Pricing source
- Billing terms: Open source, no licence fee
- Source review: checked Sep 25, 2026
- Vendor confirmation: not confirmed
Monte Carlo is a data and AI observability platform. It uses machine learning to learn the normal behaviour of data across warehouses, lakes, ETL jobs, BI tools and AI applications, detects issues at each stage of the pipeline, assesses their impact and notifies the people responsible. Automatic field-level lineage and a central catalog show where each asset lives, who owns it and how healthy it is.
The company now also markets observability for AI agents, and a fleet of its own agents that automate triage and root cause analysis. Tiers scale from Start, for small teams with up to 10 users and up to 1,000 monitors, through Scale, which adds SSO, SCIM, audit logging and data mesh support, and Enterprise, which adds multi-workspace support, cost chargebacks and integrations with Oracle, SAP HANA, Teradata and Microsoft Fabric. Business Critical adds a dedicated instance and disaster recovery to a different region.
Monte Carlo prices through credits, and its public AWS Marketplace listing is the one published figure.
Potential strengths
- Published annual contract figure on AWS Marketplace
- Covers warehouses, lakes, ETL, BI and AI tools with field-level lineage
Trade-offs
- Credit consumption is hard to forecast before a contract
- Contract fees are non-cancellable
- Product reference
- Pricing source
- Billing terms: 12-month credit contract with usage overage (AWS Marketplace)
- Source review: checked Sep 25, 2026
- Vendor confirmation: not confirmed
Bigeye began as a data observability platform and now calls its product the AI Trust Platform. The observability module monitors pipeline health across the data warehouse and applies deeper ML-based quality monitoring to the tables that matter most. The AWS Marketplace listing cites a library of more than 70 data quality metrics, which can be deployed through the user interface or programmatically with YAML configuration, and anomaly detection that replaces large numbers of manual alert rules.
Lineage is central to the product. Bigeye describes end-to-end lineage for enterprise environments with connectivity to both modern and legacy data stacks, used for upstream and downstream root cause and impact analysis. Further modules add metadata management, scanning for PII, PHI and PCI data in structured and unstructured sources, governance features such as certification and a business glossary, and AI Guardian, which enforces data access policies for AI applications at runtime.
Buyers pay by the number of tables under active monitoring.
Potential strengths
- Published per-package price tied to a countable unit
- Lineage connectivity covers legacy as well as modern data stacks
Trade-offs
- Entry package starts at $45,000 a year
- No refunds under the marketplace contract
- Product reference
- Pricing source
- Billing terms: 12-month package contract by monitored tables (AWS Marketplace)
- Source review: checked Sep 25, 2026
- Vendor confirmation: not confirmed
Sifflet is a data observability platform for data engineers and data consumers. Its core tier bundles monitoring of fundamental metrics, such as freshness, schema and volume, with custom metrics, a data catalog and lineage, so that teams can find an asset, see what depends on it and understand why it broke from one place. Sifflet presents root cause analysis and business impact assessment as the way to shorten time to resolution.
The platform serves both technical and non-technical users. Engineers can connect it to coding workflows programmatically, while business users work through the interface and a metadata search engine. Sifflet's Sentinel agent suggests monitors, and agents for issue diagnosis and fix suggestions, named Sage and Forge, are in early access.
Tiers are set by the number of assets monitored. The smallest, up to 500 assets, can be bought self-serve or through marketplaces. The enterprise tier adds 24/7 support and hybrid or self-hosted deployment.
Potential strengths
- Catalog and lineage included with core observability
- Enterprise tier offers SaaS, hybrid or self-hosted deployment
Trade-offs
- No figures on its own pricing page
- Marketplace contract fees are non-cancellable
- Product reference
- Pricing source
- Billing terms: 12-month credit contract (AWS Marketplace)
- Source review: checked Sep 25, 2026
- Vendor confirmation: not confirmed
DQLabs sells PRIZM, a platform that combines data quality, data observability and data discovery. Its AWS Marketplace listing cites more than 250 out-of-the-box rules across volume, schema, freshness, reliability, distribution, frequency, statistics and pattern matching, plus custom rules for business logic. AI-augmented profiling analyses value frequencies, ranges and patterns, and the platform supports issue identification at attribute, table and pipeline level with root cause and impact analysis through lineage.
The discovery module enriches business metadata automatically with classifications, tags and relationships. DQLabs also describes LLM-based features for advanced quality checks and metadata enrichment, and a conversational interface aimed at users from citizen analysts to engineers.
The pricing model is unusual in this category. DQLabs does not charge per user, per row or per asset; scope is set by the data source types connected, and each includes unlimited assets and users. Everything beyond the base package, such as more sources, tenants or a sandbox, is a quoted add-on.
Potential strengths
- Unlimited users, assets and rules within each connected source type
- Published annual platform fee
Trade-offs
- Highest published entry figure on this page
- Each additional data source type is an add-on
- Product reference
- Product documentation
- Pricing source
- Billing terms: 12-month platform fee plus optional add-ons (AWS Marketplace)
- Source review: checked Sep 25, 2026
- Vendor confirmation: not confirmed
Elementary is a data observability tool built around dbt. The open-source edition, Elementary OSS, is a dbt package plus a command-line tool. The package collects data quality metrics, test results and run metadata into a schema in the warehouse; the CLI reads it to generate an observability report, surface anomalies and failed tests, and send alerts to Slack and Microsoft Teams. Anomaly detection runs as native dbt tests, and configuration is managed as code in the dbt project.
Elementary Cloud adds automated monitors for freshness, volume and schema, ML anomaly detection, column-level lineage from ingestion to BI, a built-in catalog, performance monitoring, data health scores and incident management. AI agents cover test coverage, triage and resolution, performance and cost, governance and cataloging. Elementary states that the Cloud product does not require access to customer data, reading only the metadata schema, and that it is SOC 2 Type II certified.
Teams that stop paying can fall back to the self-hosted open-source version.
Potential strengths
- Free open-source edition and a 30-day Cloud trial
- Configuration lives in dbt code alongside the models it checks
Trade-offs
- Built around dbt, so it suits teams that do not use dbt less well
- Cloud prices are not published
- Product reference
- Product documentation
- Pricing source
- Billing terms: Cloud plans by seats and tables; open source free
- Source review: checked Sep 25, 2026
- Vendor confirmation: not confirmed
Informatica, now part of Salesforce, sells Data Quality and Observability as part of its Intelligent Data Management Cloud. Where many tools on this page focus on detecting problems, Informatica also emphasises correcting them: the product continuously profiles data to find patterns, anomalies and quality risks, and uses AI to speed up cleansing, standardisation and validation.
Informatica says the product can generate common data quality rules automatically across data from a wide range of sources, using AI-powered rules and accelerators. Its observability features describe the health of data through three lenses, the data itself, the pipelines that move it and the business processes that rely on it. Informatica also positions data quality as the base for customer data used in applications and for AI initiatives.
The product sits in the same cloud platform as Informatica's data catalog, data integration, master data management and governance products, and is priced on consumption across that platform.
Potential strengths
- Covers cleansing and standardisation as well as detection
- Runs alongside Informatica's catalog, integration and master data products
Trade-offs
- No published price
- Most useful to organisations already committed to the Informatica platform
- Product reference
- Product documentation
- Billing terms: Consumption-based
- Source review: checked Sep 25, 2026
- Vendor confirmation: not confirmed
Frequently asked questions
What are data quality tools?
They are software that checks whether data is complete, accurate, fresh, consistent and valid, and alerts or fixes it when it is not. Some run rules that a team writes, some learn normal patterns and flag anomalies, and some do both. Several, such as Ataccama ONE and Informatica, also cleanse and standardise data rather than only detecting problems.
How much do data quality tools cost?
Seven of the ten publish a figure or a no-charge statement. Great Expectations GX Core and Elementary OSS are open source with no licence fee, and Soda has a free plan and a $750-a-month Team plan. AWS Marketplace listings show Bigeye from $45,000 a year, Sifflet at $48,000, Monte Carlo at $50,000 and DQLabs at $140,000. Anomalo, Ataccama and Informatica are quoted.
What is the difference between data quality and data observability?
Data quality is the broader goal: data that is fit for its purpose. Data observability is one way to reach it, by continuously monitoring freshness, volume, schema, distributions and lineage to catch unexpected changes. Rule-based testing is the other main way, checking known expectations. Soda's documentation describes observability as reactive and testing as proactive, and most teams use both.
Are there free or open-source data quality tools?
Yes. GX Core from Great Expectations and Elementary OSS are both released under the Apache 2.0 licence with no licence fee, and Soda offers a free plan at $0 a month. Open-source tools shift the cost to engineering time, since the team installs, runs and maintains them. Elementary Cloud offers a 30-day free trial.
What is happening to Great Expectations?
In May 2026 Great Expectations announced that FICO had agreed to acquire GX Cloud, its hosted product, and that Fivetran would become steward of the open-source GX Core project and its community. GX Core is to remain open source and community-driven. Buyers considering the hosted product should confirm its roadmap and terms with FICO.
Which data quality tools work well with dbt?
Elementary is built around dbt: its anomaly tests run as native dbt tests and its configuration lives in the dbt project. Great Expectations and Soda are also code-first and can run checks inside the same pipelines, and Monte Carlo and Sifflet monitor the warehouse tables that dbt models produce.
Do data quality tools replace a data catalog?
Not usually. Several products here include catalog features, including Sifflet, Ataccama, Monte Carlo and Elementary Cloud, but they focus on the health of data. Dedicated catalog software focuses on finding, documenting and governing data assets, and many quality tools integrate with an existing catalog, as DQLabs includes in its base package.
How was this list put together?
Each vendor was checked against its own product, documentation, pricing or official marketplace pages in September 2026, and prices are quoted as published with the check date. The page covers tools whose main job is testing, monitoring or fixing data; integration and catalog products are covered on separate pages. Position on the page is not a ranking, and no vendor has confirmed its entry.
Suggest a vendor or correction
Send factual corrections to editorial@statwharf.com. Corrections are free. For inclusion or placement enquiries, contact partnerships.
First published September 2026. Page update dates reflect editorial changes, not a fresh check of every vendor.