CSV to JSON Converter - Convert CSV to JSON Online
Convert CSV data to JSON format instantly with delimiter support. Bidirectional CSV ↔ JSON conversion.
CSV to JSON Features
Bidirectional
Convert CSV to JSON and JSON back to CSV seamlessly.
Delimiter Support
Comma, tab, semicolon, or pipe delimiters.
Header Row Detection
Auto-detect or toggle first row as keys.
Client-Side Privacy
All processing in your browser.
No Signup
Free to use, no registration needed.
Instant Conversion
Real-time results as you type.
Common Use Cases
API Data Prep
Convert spreadsheet exports to JSON for API integration.
Database Import
Transform CSV data to JSON for NoSQL databases.
Mock Data Generation
Create JSON mock data from CSV templates.
Spreadsheet Conversion
Convert spreadsheet data to JSON format.
CSV to JSON FAQ
How do I convert CSV to JSON?
Paste your CSV data, select the delimiter, and click Convert. The tool generates a JSON array with objects keyed by header values.
What if my CSV has no headers?
Uncheck "First Row as Headers" and the tool will generate numbered keys (col0, col1, etc.).
Can I use custom delimiters?
Yes, select from comma, semicolon, tab, or pipe. The tool auto-detects common formats.
Does it handle quoted fields?
Yes, Papa Parse handles RFC 4180 compliant CSV with quoted fields, escaped quotes, and multiline values.
Is the conversion bidirectional?
Yes, click "Reverse JSON → CSV" to convert a JSON array back to CSV format.