CSV to JSON Converter

Convert CSV data to JSON format instantly in your browser

Input CSV Data

Drop CSV file here or click to browse
Supports .csv, .tsv, and text files

Keyboard Shortcuts

Ctrl+Enter Convert
Ctrl+Shift+C Copy JSON
Ctrl+L Clear all

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Learn More

CSV Files: The Complete Guide

Everything about CSV format, parsing, encoding, and best practices for working with CSV data.

 JSON: The Complete Developer's Guide

Deep dive into JSON syntax, parsing, validation, and using JSON across languages.

 Data Formats Comparison Guide

JSON vs CSV vs XML vs YAML — when to use each format and how to convert between them.

Embed this tool

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Frequently Asked Questions

Paste your CSV data into the input area or drag and drop a .csv file. The tool will auto-detect the delimiter and use the first row as JSON keys. Click Convert to get your JSON output. You can copy the result to clipboard or download it as a .json file. All processing happens in your browser with no data sent to any server.
The converter supports auto-detection of delimiters as well as manual selection of comma (,), tab, semicolon (;), and pipe (|) delimiters. Auto-detect analyzes the first few rows to determine the most likely delimiter. This means TSV, semicolon-separated, and pipe-delimited files all convert to JSON seamlessly.
Yes. The CSV parser correctly handles RFC 4180 compliant CSV including double-quoted fields, escaped quotes (two double quotes within a quoted field), commas inside quoted fields, and newlines embedded within quoted fields. This ensures accurate JSON output even with complex CSV data.
Yes. Uncheck the "First row as headers" option and the converter will output a JSON array of arrays instead of an array of objects. When headers are enabled, each row becomes a JSON object with the header values as keys. When disabled, each row becomes a simple JSON array of values.
Absolutely. All CSV parsing and JSON conversion happens entirely in your browser using JavaScript. No data is uploaded to any server. Your CSV data never leaves your machine, making this tool safe to use with sensitive or confidential information.