Is CSV to JSON Converter free and safe to use?

CSV to JSON Converter is free and runs directly in your browser, so you can use it instantly without installing software.

CSV to JSON Converter

To get started, upload or paste your data (saved as CSV or TSV).

Upload a CSV file

Or paste your CSV here

What is CSV to JSON?

CSV (Comma-Separated Values) is one of the most common formats for tabular data. JSON (JavaScript Object Notation) is the standard data interchange format for web APIs and modern applications. Converting between these formats is a frequent task for developers, data analysts, and anyone working with data pipelines.

Our CSV to JSON converter processes your data entirely in the browser — nothing is uploaded to any server. It supports auto-detection of delimiters, parsing of numbers and JSON values, transposing rows and columns, and outputting as either an array of objects or a hash map keyed by the first column.