JSON to CSV Converter
Convert JSON arrays and objects into clean CSV spreadsheets.
100% Private & Client-Side Execution
Your JSON data is parsed in local browser RAM. No content is uploaded, tracked, or stored.
About JSON to CSV Converter
JSON to CSV Converter transforms complex JSON arrays, API responses, and structured objects into standard Comma-Separated Values (CSV) spreadsheets. It automatically flattens nested object properties into dot-notation column headers, escapes quotes and commas in compliance with RFC 4180, and provides both raw text and tabular visual previews.
How to Use JSON to CSV Converter
- Paste your JSON array or object directly into the input editor or click "Load sample".
- Select your preferred delimiter (Comma, Semicolon, Tab, or Pipe).
- Toggle "Flatten nested objects" to extract nested properties into dot-notation headers (e.g. user.address.city).
- Toggle between "Raw" and "Table" views in the output panel to inspect your converted spreadsheet.
- Click "Copy CSV" or "Download .csv" to save your file.
Common Real-World Use Cases
- Data Analysts: Import JSON payloads from REST APIs directly into Microsoft Excel, Google Sheets, or Tableau.
- Developers: Export MongoDB or NoSQL documents into CSV format for client reporting and data migration.
- Product Managers: Convert API logs into readable spreadsheets for cohort analysis and feature audits.
- QA Testers: Convert mock test data between JSON test fixtures and tabular test suites.
Technical Specifications & Limitations
Handles JSON arrays of objects and single objects. Tested with thousands of rows and executes purely in browser memory.
Frequently Asked Questions
- How are nested objects handled?
- When "Flatten nested objects" is enabled, nested keys are unrolled into flat columns using dot notation, such as user.profile.email.
- Does this tool support Excel-compatible CSVs?
- Yes. The generated CSV strictly adheres to RFC 4180, with double-quoted strings and escaped inner quotes, ensuring seamless import into Microsoft Excel and Google Sheets.
- Can I convert TSV (Tab-Separated Values)?
- Yes. Simply select the "Tab (\t)" option in the Delimiter dropdown.
- Is my JSON data uploaded to any server?
- No. All parsing and conversion are handled entirely on your device using client-side JavaScript.