Check and review your GSTR-1 JSON
Find issues in supported GST return fields before continuing your filing review. Keep the original file, inspect the reported issues and recheck an edited copy in your browser.
Free after sign-in. No card or paid Seller or Tally plan is required.
GSTR-1 JSON validator: quick answers
- Is it free or paid?
- Free after sign-in; no paid subscription is required.
- What can I use as input?
- Supported GSTR-1 JSON or a ZIP containing exactly one JSON, up to 5 MB including expanded ZIP contents.
- What will I get?
- Supported-field and arithmetic checks, an editable JSON copy and review output. Full GST portal schema validation requires a separate review.
How it works
Sign in and choose a supported JSON file or ZIP containing exactly one JSON file, up to 5 MB including expanded contents.
Run the supported checks, then review reported fields, document-count arithmetic and supplied UQC codes.
Edit a copy if needed, recheck it and download the review output. Keep your original file for comparison.
Know what the tool supports
This tool checks supported fields and arithmetic. It is not a complete GST portal schema validator and does not certify a return, apply automatic business corrections or submit a filing.
Read the supported inputs and outputsCommon questions
Does a successful check guarantee that the GST portal will accept my return?
No. Supported checks cover a limited set of fields and arithmetic. Review all other return sections and portal rules in your existing filing workflow.
Will editing replace my original JSON?
The review workflow preserves the uploaded original while you edit and recheck a copy. Download and compare the outputs before using them.
Need help with a file? Check supported formats or contact GSTNook support.