CSV to JSON Converter
Paste CSV data and convert it to JSON instantly — handles headers, quoted fields with commas, and custom delimiters. Copy or download the result.
What Does This Tool Do?
Convert CSV data (with headers) to a JSON array of objects. Handles quoted fields, custom delimiters, auto-detects numbers and booleans, and outputs valid JSON ready to copy or use in code.
Key Features
Auto-Types
Numbers and booleans detected automatically.
Custom Delimiter
Comma, tab or semicolon.
Copy JSON
Copy the complete JSON output.
Quoted Fields
Handles commas inside quoted CSV cells.
How to Use
- Paste your CSV data (first row must be headers).
- Select the delimiter and output format.
- Click Convert to JSON.
- Copy the JSON output.
Frequently Asked Questions
What is the output format?▾
Default is an array of objects, where each object represents a row and keys are the column headers. The flat array format outputs arrays of values instead.
What types are auto-detected?▾
Numbers (integers and decimals), booleans (true/false) and null (empty cells) are automatically converted. Everything else stays as a string.
Can I convert large CSV files?▾
This browser-based tool works for small to medium CSVs. For files larger than a few MB, consider a server-side converter or command-line tool.
Complete Guide to CSV to JSON Converter
When To Use This Tool
Use CSV to JSON Converter whenever you need fast, accurate output without installing software. This tool is designed for speed, clarity, and repeatable results for day-to-day work.
Best Practices for Accurate Results
- Double-check the format of your input before running the tool.
- Test with a small sample first, then process larger data.
- Use Related Tools to verify, convert, or transform the output.
Why Users Prefer AdeDX
AdeDX tools are browser-based, free to use, and built to work across desktop and mobile devices. Most processing happens directly in your browser for fast performance and improved privacy.