A LITTLE HELP FOR YOUR NEXT TASK
Dataset Schema Change Checker
Review observed field and type changes between JSON datasets.
Private by design
Your inputs stay on your device and are not sent to our servers. Optional usage analytics does not receive your files or tool inputs.
Preparing private data workspace…
How to use Dataset Schema Change Checker
- Open or paste your data, or load the working sample.
- Choose columns and explicit processing rules. Review the proposed result and warnings.
- Download the chosen result dataset, JSON artifact or report; save a draft to continue later.
What are the limits of Dataset Schema Change Checker?
Compares inferred top-level scalar object fields. Missing-field requiredness is observed, not contractual. Reports removed fields, newly missing fields and type-set changes as compatibility risks, not certified breaking changes. Arrays must contain scalar objects; nested fields require flattening first. Inputs stay in browser memory. No workbook is created. Table limits: 5 MB total text, 25,000 rows, 64 columns and 200,000 cells; expensive operations have stricter limits. Processing can be cancelled.