CSV to JSON Converter
Convert between CSV and JSON formats instantly. Paste CSV data and get JSON output, or vice versa. Supports custom delimiters, header row detection, and file download.
Key features
- Bidirectional CSV/JSON conversion
- Auto-detect delimiter (comma, semicolon, tab)
- First row as headers option
- Download converted output
Guide
CSV and JSON are two of the most common data interchange formats in software development, data analysis, and web applications. CSV (Comma-Separated Values) stores tabular data as plain text with rows and columns. JSON (JavaScript Object Notation) stores structured data as key-value pairs with support for nested objects and arrays. Converting between these two formats is a daily task for developers, data analysts, and anyone who works with APIs, databases, or spreadsheets. This guide covers the structure of both formats, conversion techniques, edge cases, and practical applications. A CSV file represents a table. Each line is a row. Values within a row are separated by a delimiter, typically a comma. The first row usually contains column headers. A simple CSV file looks like this: name,age,city followed by Alice,30,Berlin and Bob,25,Tokyo. The format is human-readable and universally supported by spreadsheets, databases, and programming languages. Its simplicity is both its strength and its limitation. CSV has no built-in way to represent nested data, data types, or relationships between records. JSON represents data as objects (curly braces with key-value pairs) and arrays (square brackets with ordered values). The same data in JSON looks like [{"name":"Alice\
Frequently asked questions
Can I convert JSON arrays to CSV?
Yes, paste a JSON array of objects and the tool will create CSV with headers from the object keys.
What delimiters are supported?
The tool supports comma, semicolon, and tab delimiters, with automatic detection.
