FAMILY · JSON · 13 LIVE

JSON Tools

Format, validate, convert and generate JSON.

JSON → CSV

Flatten nested JSON arrays into clean CSV tables.

Convert CSV files into structured JSON.

Transform JSON into well-formed XML.

Parse XML documents into JSON objects.

Convert YAML configs into JSON.

Turn JSON into readable YAML.

Beautify and pretty-print JSON with consistent indentation.

Strip whitespace to shrink JSON while preserving correctness.

Check JSON syntax and pinpoint the exact error line.

Validate JSON against a schema, fully offline.

Compare two JSON documents and highlight the differences.

Generate realistic mock JSON from a simple shape.

Decode JWT header, payload, and signature — no verification server.