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Convert CSV to JSON Online

Transform CSV spreadsheet data into JSON arrays. JSON is ideal for APIs and web applications.

CSV to JSON

Convert between CSV and JSON formats

Use this tool

CSV vs JSON Comparison

AspectCSVJSON
StructureFlat, tabular rows/columnsHierarchical, nested objects
Data TypesText only, types inferredRich types supported
Tool SupportSpreadsheets, databasesCode editors, APIs
Use CasesReports, data analysisAPIs, configuration

When to Convert CSV to JSON

  • Importing spreadsheet data into web apps
  • Converting database exports for APIs
  • Processing CSV files in JavaScript
  • Migrating data from Excel to modern systems

Need the Reverse?

JSON to CSV

Convert JSON back to CSV

100% Private Conversion

All CSV to JSON conversion happens entirely in your browser using JavaScript. Your data never leaves your device and is never sent to any server. This makes it safe to convert sensitive configuration files, API responses, or any other private data.

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