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.

Upload your .csv file.

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

Download or copy the JSON output.

Header-to-Key Mapping

Type Inference (numbers, booleans)

Custom Delimiter Support

Secure & Private

Convert JSON data to formatted Excel spreadsheets with automatic column detection.

Convert JSON arrays to CSV files for spreadsheets, databases, and data pipelines.

Render JSON data as a formatted, readable PDF report.

Convert YAML configuration files to JSON format for APIs and Node.js apps.

Try our AI-powered chat interface for multi-step document workflows and batch processing.