JSON to CSV Converter - Convert Both Ways Instantly
Paste JSON to get CSV, or paste CSV to get JSON. The AI handles nested objects, arrays, inconsistent fields, and malformed data. Free, no account required.
Working with Large Datasets?
Pro plan gives you longer context for converting large JSON files and complex nested structures.
JSON to CSV and CSV to JSON - Bidirectional Conversion
Data conversion is a routine but surprisingly annoying task. Nested JSON objects don't map cleanly to flat CSV rows. Missing fields in some records create inconsistent column counts. CSV quoting rules for fields containing commas or line breaks trip up basic converters. The AI handles all of this correctly and explains what decisions it made so you can adjust the output if needed.
Nested JSON is flattened with dot notation - address.city becomes a column header. RFC 4180 quoting rules are applied correctly for fields that contain commas or newlines. For querying the data once it's loaded into a database, our Text to SQL Generator writes the queries. For JSON parse errors before conversion, our Error Explainer diagnoses the issue. For jq and csvkit commands on the command line, see our Bash Command Generator.
Conversion Directions
Common Conversion Scenarios
The most frequent data conversion tasks developers and analysts face every day.
Convert JSON from a REST API response into a CSV you can open in Excel or Google Sheets for analysis or reporting.
Convert a CSV export from a spreadsheet into a JSON configuration file or seed data for your application.
Export from one system as JSON, convert to CSV for import into another system with a different data format requirement.
Convert a small CSV of test cases into a JSON array for use in unit tests, or generate CSV fixtures from a JSON schema.