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Hazuu Tools

CSV to JSON Converter

Convert CSV data to JSON format — paste, configure, and copy instantly.

Input CSV
Output JSON
Converted JSON will appear here...
info

About CSV to JSON Converter

CSV to JSON Converter is a free online tool that transforms comma-separated values (CSV) data into structured JSON format. JSON is the standard data format for web APIs, JavaScript applications, and modern data pipelines, making this conversion essential for developers, data analysts, and anyone integrating tabular data into web services.

This tool uses PapaParse, one of the most reliable CSV parsing libraries, to accurately handle complex CSV structures including quoted fields, embedded delimiters, and multiline values. It supports multiple delimiter types (comma, semicolon, tab, and pipe), a first-row-as-header option for named properties, and configurable JSON indentation. All processing happens entirely in your browser — your data is never uploaded to any server, ensuring complete privacy.

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How to Use

01

Paste CSV

Copy your CSV data and paste it into the left input pane.

02

Configure

Choose your delimiter and toggle the header option as needed.

03

Convert & Copy

Click Convert to generate JSON, then use the copy button to grab your result.

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Frequently Asked Questions

What is CSV to JSON Converter? expand_more
CSV to JSON Converter is a free online tool that transforms tabular CSV data into structured JSON format. When headers are enabled, it produces an array of objects with named properties. When headers are disabled, it returns an array of arrays.
How does the header option work? expand_more
When the Header toggle is enabled (the default), the first row of your CSV is used as property names for each JSON object. When disabled, all rows including the first are treated as data and the output is an array of arrays.
What delimiters are supported? expand_more
The tool supports four common delimiters: comma (,), semicolon (;), tab, and pipe (|). Select the one that matches your CSV format using the delimiter toggle in the toolbar.
Is my data secure? expand_more
Yes. All conversion is performed entirely in your browser using PapaParse. No data is ever sent to a server, so your content remains completely private and secure.
Can it handle quoted fields? expand_more
Yes. PapaParse properly handles quoted fields that contain delimiters, newlines, and escaped quotes, following the RFC 4180 CSV standard.