Convert JSON to CSV Instantly
Got an API response full of data that you need in a spreadsheet? This tool takes your JSON array and converts it to CSV format that you can paste directly into Excel, Google Sheets, or any data tool. Nested objects get flattened automatically —address.city becomes a column header.
The converter handles edge cases that trip up simpler tools. Strings with commas get properly quoted. Unicode characters survive the conversion. Null values become empty cells. It's the kind of thing that takes 5 minutes to write in Python but is annoying enough that you'd rather just use a tool.
How JSON to CSV Flattening Works
JSON is hierarchical — objects can contain objects can contain objects. CSV is flat — every value lives in a row-column grid. When your JSON has nested objects, this tool creates compound column names using dot notation. A structure like{"user": {"address": {"city": "London"}}} becomes a column called user.address.city. Arrays within objects are JSON-stringified since CSV can't represent them natively.
When to Use JSON to CSV
- Reporting to Stakeholders: Export API data to Excel for product managers, executives, or clients who prefer spreadsheets.
- Data Analysis: Feed JSON data into BI tools, database import wizards, and statistical software that expect CSV.
- Legacy System Integration: Many older enterprise systems only accept CSV imports. Convert modern JSON APIs to legacy-compatible CSV.
- Email Attachments: CSV files open in any email client and spreadsheet app, making them ideal for sharing data extracts.
📊 RFC 4180 Compliant
Output follows the official CSV standard. Fields with commas, quotes, and newlines are properly escaped for universal compatibility.
🔒 Private & Local
Your JSON arrays and resulting CSV rows never leave your browser. Safe for proprietary business data and API responses.
CSV Format Details
The output follows RFC 4180 — the standard CSV format. Fields containing commas, double quotes, or newlines are properly escaped with double quoting. The first row is always the header row with column names. Each subsequent row is one JSON object from your array. The converter preserves Unicode characters, handles null values as empty cells, and maintains consistent column ordering across all rows.
Related JSON Tools
Need to go the other way? Use CSV to JSON for importing spreadsheet data. For database seeding, try JSON to SQL. View data in a sortable table before exporting.