Data Tools
Work with JSON and CSV without sending data to a remote converter. Format API responses, repair common JSON errors, compare payloads and move data between JSON and CSV formats.
JSON Formatter
Paste minified or compact JSON and get it back formatted with proper indentation — readable, debuggable and validated.
Fix Invalid JSON
Automatically repair malformed JSON with unquoted keys, single quotes, trailing commas and Python-style literals.
JSON to CSV
Convert a JSON array of objects into CSV format — ready to open in Excel, import into a database or share as a spreadsheet.
CSV to JSON
Convert CSV data with a header row into a structured JSON array of objects — ready for APIs, web apps or further processing.
Compare JSON
Paste two JSON objects and instantly see the differences — key order is ignored, only real data changes are highlighted.