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JSON Formatter
Format, validate, minify JSON — plus convert JSON ↔ CSV. Everything runs locally in your browser.
Input
Format
Minify
Validate
Sample
Clear
Upload CSV
Auto-format
Tip: Drag & drop a
.csv
or
.tsv
file into this box to load it.
Status
Paste JSON (or CSV), then use the buttons below.
JSON → CSV Converter
Best for JSON arrays of objects. Nested objects can be flattened or stored as JSON strings.
Convert to CSV
Copy CSV
Download CSV
Flatten keys
Delimiter
Comma (,)
Tab (TSV)
Semicolon (;)
CSV → JSON Converter
Paste CSV with headers in the first row (example:
name,age
). Converts to a JSON array of objects.
Convert to JSON
Copy JSON
Download JSON
Trim cells
Infer types
CSV parsing supports quoted fields (commas inside quotes) and CRLF/newlines.
Formatted / Minified Output
Copy Output
Copy Minified
Download .json
CSV Output
CSV → JSON Output
Privacy: formatting and conversion run in your browser. No data is uploaded to InstantQR servers.