Convert CSV to JSON Online

Parse CSV files or Excel copy-pastes into typed JSON arrays in milliseconds.

Transform CSV Rows into Structured JSON Objects

Uses the first row as object property keys and maps every subsequent row into a clean JSON object inside an array.

Auto-Detect Numbers, Booleans, and Nulls

Dynamic typing automatically converts numeric strings (`42`, `3.14`) and booleans (`true`, `false`) into native JSON primitives rather than quoting everything as strings.

Upload .csv or Paste Directly from Excel

Supports comma, semicolon, and tab-delimited (TSV) spreadsheet pastes seamlessly via PapaParse.

Frequently Asked Questions

Does it automatically detect CSV delimiters?

Yes, our engine auto-detects commas (`,`), semicolons (`;`), tabs (`\t`), and pipes (`|`).

Are numeric values converted to JSON numbers?

Yes, dynamic typing is enabled so numbers and booleans become native JSON types instead of string literals.

How are commas inside quoted CSV cells handled?

Quoted fields containing commas or newlines are parsed strictly by RFC 4180 rules without splitting columns prematurely.