CSV to JSON Converter - Free Online Tool
Transform CSV and TSV files to JSON format instantly with our powerful online converter. Features smart auto-detection, multiple output formats, and advanced parsing options - completely free, no registration required.
CSV Input
JSON Output
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What is CSV to JSON Conversion?
CSV (Comma-Separated Values) to JSON (JavaScript Object Notation) conversion transforms structured tabular data into a modern, flexible format widely used in web development, APIs, and data interchange. Our online converter makes this process instant and effortless.
Perfect for developers, data analysts, and anyone working with data migration, API development, or database imports. Convert Excel exports, database dumps, or any CSV file to clean, properly formatted JSON in seconds.
Powerful Features
- ✓Smart Auto-Detection: Automatically identifies separators (comma, semicolon, tab, pipe)
- ✓Multiple Output Formats: Array of objects, hash/object, or column arrays
- ✓Advanced Parsing: Parse numbers, JSON values, handle duplicates, transpose data
- ✓Privacy First: 100% client-side processing - your data never leaves your browser
- ✓Live Preview: See results in real-time as you type or paste data
How to Convert CSV to JSON
Input Your Data
Paste your CSV data, upload a file, or click "Load Demo" to see an example. Supports CSV, TSV, and custom delimiters.
Configure Options
Choose your output format, enable parsing options, and customize settings. Auto-detect handles most cases automatically.
Get Your JSON
Copy the formatted JSON output or download as a .json file. Use keyboard shortcuts for faster workflow.