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CSV to JSON

Convert CSV data with a header row into a structured JSON array of objects — ready for APIs, web apps or further processing.

CSV files are the standard format for data exports, spreadsheet sharing and database imports. But many APIs, web applications and development workflows require JSON. This tool converts CSV data with a header row into a properly formatted JSON array of objects — each row becomes an object and each column header becomes a key — ready to use directly in code, APIs or data pipelines.
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About CSV to JSON

CSV files are the standard format for data exports, spreadsheet sharing and database imports. But many APIs, web applications and development workflows require JSON. This tool converts CSV data with a header row into a properly formatted JSON array of objects — each row becomes an object and each column header becomes a key — ready to use directly in code, APIs or data pipelines.

How to use CSV to JSON

Paste your CSV data into the input box, ensuring the first row contains column headers. Click Run. The tool parses the CSV, creates one JSON object per data row using the header names as keys, and outputs a formatted JSON array. Copy the result directly for use in your application or API.

When to use this tool

Use this when preparing spreadsheet data for an API that expects JSON input, when converting a database export for use in a web application, when transforming survey or form export data into structured JSON, or when you need to inspect CSV data as structured JSON for programmatic processing.

Privacy

Manual CSV-to-JSON conversion is tedious, especially for files with quoted fields, embedded commas or large row counts. This tool handles the full CSV specification including quoted fields and embedded commas. All processing runs in your browser — no files are uploaded.

Frequently asked questions

Does it handle quoted fields with commas inside?

Yes. The tool implements RFC 4180 CSV parsing, which correctly handles fields enclosed in double quotes, including fields that contain commas, newlines or quotation marks within the quoted value.

What if my CSV uses a semicolon instead of a comma?

The tool uses comma as the standard CSV delimiter. Semicolon-delimited files (common in some European locales) need to have their delimiters replaced with commas before converting.

Are all values treated as strings?

Yes. All CSV values are output as JSON strings. If you need numbers or booleans typed correctly in the JSON, post-process the output or convert the types in your application.

Can I convert back from JSON to CSV?

Yes. Use the JSON to CSV tool on this site to convert in the other direction.