CSV to JSON Converter

Convert CSV data to JSON format instantly. Supports custom delimiters and header detection. Free, no signup.

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CSV Input

JSON Output

How It Works

CSV (Comma-Separated Values) is a simple format for tabular data. Each line is a row, and commas separate columns. This converter turns CSV into JSON (JavaScript Object Notation), the standard data format for web APIs and applications.

Features

Header Detection — First row is treated as JSON keys
Multiple Delimiters — Comma, semicolon, tab, pipe
Auto-detect Numbers — Numeric values stay as numbers in JSON
Error Handling — Mismatched columns flagged with clear messages

FAQ

What if my CSV has commas inside quotes? Standard quoted CSV fields are supported. Example: "New York, NY",30

Is this free? Yes, unlimited, no signup. All processing is in your browser.

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