ITC-04 JSON Schema Validator
Validate job work return JSON locally before upload or downstream review.
Use this tool when the GST portal says, "Schema Validation Failed. Download the latest version of Offline tool to generate the JSON file".
Your GST return JSON stays on your device and is not uploaded to Octa GST servers.
Validate your ITC-04 JSON
Upload or drag and drop your GST return JSON file. Validation starts immediately in your browser.
Drop your JSON file here
Drag and drop a `.json` file, or choose it from your computer. The file is read locally and validated immediately.
About ITC-04 JSON validation
ITC-04 is used for reporting goods sent to, received from, or moved between job workers. The JSON file can include multiple job work movement sections, and small structural issues can lead to schema validation failures during upload.
Use this ITC-04 JSON schema validator to inspect the file locally and find schema-level errors in the job work return JSON without uploading confidential business data anywhere.
Frequently asked questions
Is my JSON file uploaded to Octa GST?
No. The validator reads the file in your browser and runs schema validation on your device. The JSON file is not uploaded to Octa GST servers.
Is this tool free to use?
Yes. These GST JSON validation tools are absolutely free to use.
Does a valid result mean my return is ready to file?
A valid result means the JSON matches the configured schema. It does not replace tax review, GST portal validations, or business-rule checks beyond the schema.
How do I use this validator?
Choose a GST return JSON file from your computer or drag and drop it into the upload box. Validation starts immediately after the browser reads the file.
Where do the schema rules come from?
The schema rules come from the official technical specification published by the Government GST system, GSTN. Each validator uses the corresponding GSTN JSON schema file configured in this website repository.
Can this help with the GST portal schema validation failed error?
Yes. If the GST portal shows "Schema Validation Failed. Download the latest version of Offline tool to generate the JSON file", this validator can help you identify schema-level issues in the JSON before trying the upload again.