Datafold vs tSQLt
Datafold
datafold.com
tSQLt
tsqlt.orgSide by side
| Figure | Datafold | tSQLt |
|---|---|---|
| Price from | — | Free |
| Free plan | — | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | Yes |
| Plans published | 1 | 1 |
| Spec score · Database Testing Tools | 8.1 (#10) | 7.8 (#14) |
| Integrations | The product page names Snowflake, Databricks, BigQuery, Redshift, dbt, Airflow, GitHub, and GitLab, and says Datafold integrates with 50+ data tools. | The site identifies Redgate SQL Test as its preferred commercial SSMS extension and the official SSMS plug-in for tSQLt. |
| Purpose | Datafold combines specialized AI agents, a context layer, and data quality tools to automate data engineering. | tSQLt is an open source framework for unit testing SQL Server databases with tests written in T-SQL. |
Plans
In their own words
tSQLt
tSQLt is an open-source unit testing framework for Microsoft SQL Server. Developers write tests in T-SQL, organize them in schemas, and define shared setup methods there. Tests run automatically inside transactions to remain independent and reduce cleanup work. For isolation, tSQLt can fake tables and views and create stored procedure spies. Assertions include AssertEquals and AssertEqualsTable, while results can be generated as plain text or XML for continuous integration tools. The project says it works with SQL Server editions from SQL Server 2005 Service Pack 2 onward. tSQLt is self-hosted, released under the Apache 2.0 license, and the listed plan costs nothing. Installation requires running PrepareServer.sql once per server with SA permission, then installing the framework in a development database. The quick start explicitly says never to install tSQLt in production. Redgate SQL Test is named as its preferred SSMS plug-in.