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CSV to JSON Converter - Free Online Data Tool

Convert Comma Separated Values (CSV) to JavaScript Object Notation (JSON) instanty. Parses headers, handles strings, and outputs valid minified or prettified JSON.

Key Benefits

  • Client-side conversion (Privacy focused)
  • Supports large datasets
  • Toggle Prettify/Minify
  • Smart number detection

Target Audience

  • Developers migrating databases
  • Data Analysts
  • QA Testers creating mock data
  • Frontend Engineers

How It Helps

  • Transforms Excel exports into API-ready JSON
  • Fast processing for configuration files
  • No server upload required (Secure)
  • Clean error reporting

Convert CSV to JSON Online

CSV (Comma Separated Values) is the standard for spreadsheets (Excel, Google Sheets). JSON (JavaScript Object Notation) is the standard for APIs and Web Applications.

Bridging the gap between the two often requires writing a script. Our tool does it instantly in the browser. It automatically detects numbers and booleans to ensure your data types are correct.

Frequently Asked Questions

Common questions about using this tool