CSV to JSON Converter
Convert CSV (Comma Separated Values) data to JSON format instantly. Perfect for data migration, API development, and data analysis workflows.
JSON Output
About Our CSV to JSON Converter
Our free online CSV to JSON converter is an essential tool for developers, data analysts, and anyone working with data interchange between different systems. CSV (Comma Separated Values) is widely used for data export and import, while JSON (JavaScript Object Notation) is the standard for web APIs and modern applications. This tool bridges the gap between these formats seamlessly.
Key Features
- Automatic Header Detection - Uses first row as JSON keys automatically
- Proper Data Typing - Converts numbers and maintains data integrity
- Real-time Conversion - See JSON output as you type CSV data
- Download Capability - Export converted JSON to a file
- Error Handling - Identifies malformed CSV data with helpful messages
Common Use Cases
- Migrating data from spreadsheets to web applications
- Preparing data for API endpoints and web services
- Converting exported data from databases or analytics tools
- Creating sample data for development and testing
- Integrating data between different software systems
CSV Format Guidelines
- First row should contain column headers
- Use commas to separate values
- Each row should be on a new line
- Text with commas should be enclosed in quotes
- Empty values are converted to empty strings in JSON
Frequently Asked Questions
What CSV formats are supported?
Our converter supports standard CSV format with comma separators. The first row is treated as headers (JSON keys), and subsequent rows become objects in the JSON array. We automatically handle basic data types like strings and numbers.
How are special characters and commas in values handled?
Values containing commas should be enclosed in double quotes (e.g., "New York, NY"). Our parser correctly handles quoted values and preserves special characters and Unicode text.
Can I convert CSV files with different delimiters?
Currently, our tool supports comma-separated values only. If your CSV uses other delimiters (like tabs or semicolons), you'll need to replace them with commas first or use a text editor to convert the delimiter.
What happens if my CSV has missing values?
Missing values in CSV are converted to empty strings ("") in the JSON output. The structure remains consistent, ensuring all objects have the same keys from the header row.
Is there a limit to the CSV file size I can convert?
Since processing happens in your browser, the limit depends on your device's memory. For most practical purposes, you can convert very large CSV files, but extremely large files (hundreds of MB) might cause performance issues.