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CSV to VCF Converter
Convert CSV contacts to VCF (vCard) format instantly in your browser. Perfect for phone contact.
CSV to JSON Converter
CSV to JSON Converter — Convert CSV Files Online
Convert your CSV data into perfectly formatted JSON instantly right in your browser.
Input CSV
Output JSON
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Quick Start Instructions
Paste CSV text or upload a .csv file to get formatted JSON output. Supports custom delimiters, header row toggle, and nested object mapping. Runs locally.
- 1Paste CSV data or upload a .csv file.
- 2Configure parsing options (custom delimiters, header row toggle).
- 3Preview the generated JSON structure in the editor.
- 4Copy to clipboard or download the .json file.
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Frequently Asked Questions
Is my sensitive CSV data secure during conversion?
Client-side local processing; zero data uploaded.
Can I convert large CSV files over 50MB?
Yes, but large files depend on your browser's memory limits.
Does the converter handle custom delimiters like semicolons or tabs?
Yes, parsing options are fully customizable.
How are empty CSV fields formatted in the final JSON?
They are rendered as null values or empty strings.
Can I automatically parse numbers and booleans from the CSV?
Yes, via strict typing toggles.
Detailed Guide & Overview
Convert CSV to JSON Instantly
Moving data from spreadsheet applications like Excel or Google Sheets into web applications often requires converting comma-separated values (CSV) into JavaScript Object Notation (JSON). Our free online converter instantly transforms your flat CSV tables into structured, nested JSON arrays, perfectly formatted for your database imports or API payloads.
Customizable Parsing Options
Not all CSV files are created equal. This tool automatically detects column headers and allows you to customize the delimiter (comma, semicolon, or tab). It intelligently parses numbers and booleans rather than treating everything as a string, ensuring the resulting JSON structure maintains accurate data types for your application logic.
Private Client-Side Conversion
Customer lists, financial records, and inventory data are highly confidential. To ensure data privacy, this tool performs the entire CSV to JSON conversion locally within your web browser. Your data files are never uploaded, stored, or processed on our servers, helping keep your information secure on your device.