CSV to JSON Converter
Convert CSV data to JSON format and vice versa instantly.
💡 Tip: Make sure your CSV has a header row and comma-separated values.
How to Convert CSV to JSON
1. Paste your CSV
Paste CSV data directly or upload a .csv file. Make sure your CSV has a header row — the column names become the keys in each JSON object. Choose your delimiter (comma, semicolon, or tab).
2. Convert
Click Convert to transform your CSV into a JSON array of objects. Each row becomes one object, with column headers as keys. The JSON output is formatted and ready to use.
3. Copy or download
Copy the JSON output to your clipboard or download it as a .json file. Use it directly in your application, API, or data pipeline. Also supports the reverse — JSON back to CSV.
CSV to JSON Conversion Example
Input CSV
name,age,email Alice,28,alice@example.com Bob,34,bob@example.com Carol,22,carol@example.com
Output JSON
[
{
"name": "Alice",
"age": "28",
"email": "alice@example.com"
},
{
"name": "Bob",
"age": "34",
"email": "bob@example.com"
}
]Common CSV to JSON Use Cases
API data preparation
Export data from Excel or Google Sheets as CSV, then convert to JSON to use as mock API data or seed data for development.
Database seeding
Convert a CSV of test records to JSON to seed a MongoDB, Firestore, or any document database that accepts JSON imports.
Config file generation
Transform a CSV of settings or key-value pairs into a JSON config file for your application.
Data pipeline input
Many data pipelines and ETL tools accept JSON as input. Convert your CSV exports to JSON before passing them to the pipeline.
Frontend data binding
Load a CSV dataset and convert it to JSON to bind to tables, charts, and visualisations in a React or Vue application.
Postman / API testing
Build a JSON body for Postman or curl from CSV test cases to easily run parameterised API tests.
CSV Format Rules
Header row required
The first row must contain column names. These become the keys in your JSON objects.
Quoted fields
Fields containing commas or newlines must be wrapped in double quotes: "Smith, John".
Delimiters
Standard CSV uses commas. Some regional exports (especially European) use semicolons. TSV files use tabs.
Encoding
CSV files should be UTF-8 encoded to correctly handle non-ASCII characters like accents and symbols.
Frequently Asked Questions
Common questions about CSV to JSON Converter