CSV ↔ JSON Converter
CSV ↔ JSON Converter
Seamlessly convert between CSV and JSON formats. Transform spreadsheet data into API-ready JSON or convert JSON responses for Excel analysis.
Powerful Features
Bidirectional
Convert CSV to JSON and JSON to CSV with a single tool
Instant Conversion
Process large datasets in milliseconds right in your browser
Privacy First
Data never leaves your device - 100% client-side processing
Excel Compatible
Generate CSVs ready for Excel, Google Sheets, or Numbers
Smart Parsing
Automatically detects headers and data types
Easy Copy
One-click copy to clipboard for quick workflow
How It Works
CSV to JSON
Select "CSV to JSON" mode
Paste your CSV data (with headers)
Click Convert to get your JSON array
JSON to CSV
Select "JSON to CSV" mode
Paste your JSON array of objects
Click Convert to get your CSV table
Perfect For
Essential tool for data analysts and developers
📊 Data Analysis
Convert API data for analysis in Excel
🔌 API Development
Mock API responses from spreadsheet data
💾 Database Import
Prepare JSON data for NoSQL databases
📈 Reporting
Generate CSV reports from JSON logs
🔄 Migration
Migrate data between different systems
🛠️ Testing
Create test data sets quickly
Common problems this tool solves
How to Convert Excel Data to a JSON Array
Turn your Excel exports into a clean, minified JSON array in seconds. A must-have tool for modern frontend developers.
How to Convert CSV to JSON for Web Development
The fastest way to transform spreadsheet data into a developer-friendly JSON format. Support for headers and nested structures.
How to Prepare JSON from a Spreadsheet
An essential workflow for data-driven websites. Learn how to transform spreadsheet rows into perfectly keyed JSON objects.