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JSONTheme
Power BI Theme JSON Validator
Catch malformed JSON, missing names and common color-field mistakes before you import a theme.
Runs locally in your browser
JSON
Validate a Power BI theme
Paste a theme JSON or load a local .json file. The quick validator checks syntax and core theme properties in your browser.
Everything on this page runs locally in your browser.
Validate before importing into Power BI
A quick local check catches malformed JSON, a missing theme name and common color-field mistakes before you interrupt your report workflow with a failed import.How to check a Power BI theme JSON
- Paste the theme JSON or load a local .json file from your device.
- Run the browser-based validation to check JSON syntax and the core theme properties supported by this quick validator.
- Read the reported issue, correct the JSON and validate again until the quick checks pass.
- Copy or save the corrected theme, then import it into Power BI Desktop for final verification.
What does the Power BI Theme JSON Validator check?
It checks valid JSON syntax plus a focused set of common theme properties, including the theme name and typical color fields. It is designed to catch frequent mistakes quickly in the browser.
Does this replace validation against the complete Power BI theme schema?
No. This is a quick pre-import validator, not a complete implementation of every Power BI theme schema rule. Power BI Desktop remains the final authority on whether a theme imports and behaves as expected.