CSV to JSON Converter

CSV (Comma-Separated Values) is the universal export format for spreadsheets, databases, and analytics tools — every system from Excel to PostgreSQL produces it. JSON is the universal API and JavaScript format. Converting CSV to JSON is the bridge between data analysis and application development.

How our parser handles quoted fields

Real-world CSV is messy: fields can contain commas, quotes, and newlines. Our parser correctly handles RFC 4180 quoted strings, escaped double-quotes ("" inside a "quoted" field), and trims whitespace from unquoted values.

Automatic type coercion

CSV files have no types — everything is a string. Our converter intelligently detects numbers (42 → 42), booleans (true/false → true/false), and empty cells (→ null). This produces idiomatic JSON that's ready to use without further parsing.

Headers become object keys

The first row of your CSV is treated as the header row. Each subsequent row becomes a JSON object with the header values as keys. The result is a clean array of objects — exactly what most APIs and databases expect.

Common use cases

• Excel spreadsheet exports → REST API payloads
• Database CSV dumps → MongoDB / Firestore documents
• Google Sheets data → frontend application state
• Analytics exports → BI dashboard data
• CRM contact lists → marketing automation tools
• Inventory CSVs → e-commerce product catalogs

Whether you're migrating data, prototyping an API, or just need to feed an Excel export into your JavaScript app, this converter delivers clean, well-typed JSON in one click.