SemanticOps, Spectacles, Fab Inspector (formerly PBI Inspector) have free plans. The highest-ranked is SemanticOps (8.9/10): Free tier: core model operations and DAX queries; Test Runner requires Pro
BI report testing tools check reports and dashboards in tools such as Power BI, Tableau, Qlik, Looker and Cognos: that the numbers match the source data, that a change did not break an existing report, and that reports load fast enough. The biggest difference between them is which BI platforms they support, so start from the BI tools you run.
| Tool | Score | Free plan | Paid from (annual) | Power BI | Tableau | Other BI tools (Qlik, Looker, Cognos, MicroStrategy...) | Report regression testing | CI/CD integration |
|---|---|---|---|---|---|---|---|---|
| SemanticOps | 8.9/10 | Yes | $29.08/mo | Yes | No | No | Yes | Yes |
| Spectacles | 8.4/10 | Yes | See vendor | No | No | Yes | Yes | Yes |
| Fab Inspector (formerly PBI Inspector) | 7.9/10 | Yes | See vendor | Yes | No | No | Not confirmed | Yes |
| Tool | What the free plan includes | First paid plan |
|---|---|---|
| SemanticOps | Free tier: core model operations and DAX queries; Test Runner requires Pro | $29.08/mo (annual) |
| Spectacles | Open-source CLI (MIT license), self-run; hosted app is a paid subscription | See vendor |
| Fab Inspector (formerly PBI Inspector) | Open source (MIT), self-hosted CLI, desktop app and Docker image | See vendor |
Local MCP server and desktop Test Runner for testing and governing changes to Power BI semantic models.
Continuous integration and testing tool for Looker that checks LookML changes for SQL errors, broken content and failing data tests.
Open-source, rules-based tester for Power BI reports and other Microsoft Fabric items, run locally or in CI/CD pipelines.
Yes. Free tier: core model operations and DAX queries; Test Runner requires Pro Paid plans start at $29.08/mo billed annually.
Yes. Open-source CLI (MIT license), self-run; hosted app is a paid subscription Paid plans start at see vendor.
Yes. Open source (MIT), self-hosted CLI, desktop app and Docker image Paid plans start at see vendor.
Scores come from published, repeatable data (features, free plan, entry price, pricing transparency). No vendor can pay to change a score. Read the methodology · Disclosure.