Free CSV to JSON Converter
Convert CSV data to JSON format with customizable delimiters and output structures. Perfect for data processing, API integration, and database imports.
JSON output will appear here
Automatically detects and converts numbers, booleans, and null values for proper JSON structure.
Choose from multiple JSON formats: array of objects, object with arrays, or nested structures.
All conversion happens locally in your browser. Your data never leaves your device.
Data Integration
- • API data preparation
- • Database imports
- • Excel/Google Sheets exports
- • Data warehouse loading
- • Configuration file creation
Development Workflow
- • Test data generation
- • Mock API responses
- • JavaScript object creation
- • NoSQL database seeding
- • Front-end data binding
What delimiters are supported?
Common delimiters like comma, semicolon, tab, and pipe, plus custom delimiters up to 3 characters.
How are data types handled?
The tool automatically converts strings to appropriate JSON types: numbers, booleans (true/false), and null values.
What if my CSV has quoted values?
The parser handles quoted values correctly, including escaped quotes and values containing delimiters.
Which output format should I choose?
Array of objects is most common for APIs, object with arrays for data analysis, and nested for key-based lookups.