Are numbers and booleans parsed correctly?

Yes, type inference converts numeric strings to numbers and 'true'/'false' strings to boolean values in the JSON output.

Yes, this tool is 100% free to use.

Yes, files are processed securely and deleted automatically.

CSV to JSON

Convert CSV spreadsheet data to JSON format for APIs and JavaScript applications.

Secure & Private

Fast Processing

No Installation Required

or drop files here

Files stay private. Automatically deleted after 2 hours.

How to CSV to JSON

Upload your .csv file.

Click 'Convert' — headers become keys, rows become JSON objects.

Download or copy the JSON output.

Features

Header-to-Key Mapping

Type Inference (numbers, booleans)

Custom Delimiter Support

Secure & Private

When to use CSV to JSON

CSV to JSON helps analysts, operations teams, developers, and finance teams. Use it when you need to turn CSV files into JSON output, prepare a cleaner sharing copy, or finish a document workflow without installing desktop software.

convert structured data into spreadsheets or documents
make machine data readable
prepare data files for reporting

Quality checklist

Validate row counts, delimiters, dates, and encodings.
Check nested fields after conversion.
Avoid sharing sensitive data without review.

Fillable Forms Library

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Security

Review DocuHub security and privacy controls.

CSV to JSON

Convert CSV spreadsheet data to JSON format for APIs and JavaScript applications.

Frequently Asked Questions

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