JSON → CSV Converter

Paste JSON, upload a file, or drop NDJSON. Configure options and export clean CSV for Excel or any tool.

NDJSON supported (one JSON object per line)

JSON Input

Drag & drop file here, or paste JSON below.

Delimiter

Array joiner

Line endings

Include header row

Adds first row of column names

Flatten nested keys

Converts objects/arrays to string values

Alphabetize columns

Sort headers A → Z

Add BOM (Excel)

Improves CSV opening in some Excel locales

NDJSON supported (one JSON object per line)

CSV Output

Tip: If your JSON has different keys across rows, columns are the union of all keys.

Having trouble? Ensure your JSON is valid or try the sample.