CSV ⇄ JSON Converter
Convert between CSV and JSON
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Key Features
- •Bidirectional Conversion: CSV → JSON and JSON → CSV in one tool
- •Custom Delimiters: Support for comma, semicolon, tab, pipe, and custom separators
- •Header Row Detection: Automatically converts first row to JSON object keys
- •Type Auto-Detection: Intelligently converts numbers, booleans, and null values
- •Pretty Print JSON: Optional formatting with indentation for readability
- •Nested Object Flattening: Handles complex JSON structures when converting to CSV
- •100% Browser-Based: All processing happens client-side—your data stays private
Common Use Cases
- •Convert Excel or Google Sheets CSV exports to JSON for API consumption
- •Transform database query results to JSON for JavaScript processing
- •Create CSV reports from JSON API responses for spreadsheet analysis
- •Migrate data between systems with different format requirements
- •Generate test fixtures by editing CSV in Excel then converting to JSON
- •Prepare bulk import data by converting JSON to CSV for database tools
How to Use
- 1.Select conversion direction: CSV → JSON or JSON → CSV using the mode tabs
- 2.Paste your CSV or JSON data into the input editor (or upload a file)
- 3.Configure options: delimiter type, header row handling, and output formatting
- 4.Enable Auto Convert for real-time results, or click Convert manually
- 5.Copy the converted output or download it as a .json or .csv file
- 6.Use Load Example to see sample conversions for each direction
