Validators
2 tools
JSON & CSV Validators
Check JSON syntax and CSV structure in your browser. Review available error locations, JSON duplicate-key warnings and CSV row-width reports.
Choose by task
- Check JSON syntax before using a payload
- JSON Validator — Reports the first parse error and locations when available, not JSON Schema conformance. Its duplicate-key scan is heuristic.
- Investigate uneven spreadsheet rows
- CSV Validator — Review field counts and quoting errors; a structurally valid CSV still needs application-level checks.
Guides for this work