DataToolsHQ — Inspect, Transform & Debug Structured Data
Inspect, transform, and debug JSON, YAML, CSV, ENV, and JWT in your browser. Compare, redact, report, and organize investigations locally — no uploads, no backend.
Formatter tools
JSON Formatter
Format, minify, and validate JSON online. Paste API responses or config files — all processing stays in your browser.
YAML Formatter
Format and validate YAML in your browser. Fix indentation issues and confirm structure before deploy.
CSV Converter
Convert CSV to JSON or JSON arrays to CSV in your browser. Handy for spreadsheets, imports, and quick data checks.
ENV Formatter
Normalize, sort, and dedupe .env-style key=value files in your browser. Keep environment files consistent.
JWT Decoder
Decode JWT header and payload in your browser. Signature is not verified — for inspection and debugging only.