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CSV to JSON Converter: Convert CSV to JSON Online | Free Tool

2 uses

CSV to JSON Conversion Tips

Auto-Detect Headers & Types
First row is automatically used as JSON keys. Numbers and booleans are converted to proper JSON types.
Custom Delimiter Support
Works with comma, semicolon, or tab-separated data to handle CSV files from different regions.
Handles Quoted Fields
Properly parses fields with commas, quotes, and newlines inside quoted strings per RFC 4180.
Privacy-First Processing
All CSV parsing happens in your browser. Your data never leaves your device.

Frequently Asked Questions

Q How do I convert CSV to JSON online?
A Paste your CSV data, check that the delimiter matches your data, and click Convert. JSON output appears instantly.
Q Does it handle quoted CSV fields?
A Yes, our parser correctly handles RFC 4180 CSV with quoted fields containing commas, quotes, and newlines.
Q Are data types preserved?
A Yes, numbers and booleans are automatically detected and converted to proper JSON types instead of strings.
Q Is this CSV to JSON converter free?
A Yes, completely free. No registration, no file size limits for browser-based processing.
Q What if my CSV data uses a different separator like a semicolon or tab?
A Our CSV to JSON converter is designed to automatically detect common delimiters, including commas, semicolons, and tabs. If the auto-detection isn't perfect for your specific data, you can easily select the correct separator from a dropdown menu. This ensures your CSV is parsed accurately, converting it into valid JSON format without errors, regardless of the original delimiter.
Q Is my sensitive CSV data safe when I use this online converter?
A Absolutely. Our CSV to JSON converter processes all your data directly within your web browser. This means your CSV content never leaves your computer and is never uploaded to our servers. Your information remains completely private and secure throughout the conversion process, ensuring confidentiality for your sensitive data.

How to Convert CSV to JSON

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