CSV to JSON Converter

Converting CSV to JSON transforms flat tabular data into structured objects that web applications and APIs can easily consume. This is one of the most common data transformation tasks in web development.

Paste your CSV data and the tool automatically detects the delimiter and converts each row into a JSON object using the header row as keys. Dynamic typing converts numeric values to numbers and recognizes boolean values.

CSV to JSON conversion is essential for importing spreadsheet exports into web apps, building REST API request bodies from tabular data, loading CSV datasets into MongoDB or other document databases, creating JSON fixtures for testing from CSV sources, and processing data pipelines that bridge spreadsheet and web formats.

The tool uses PapaParse, a robust CSV parsing library that handles quoted fields, embedded commas, newlines within fields, and various edge cases. Dynamic typing automatically converts strings that look like numbers or booleans to their proper JSON types.