CSV to JSON Converter

Convert CSV data to JSON instantly. Runs in your browser — nothing uploaded.

First row is header Trim whitespace Auto-detect types (numbers, booleans) Pretty print

CSV Input

JSON Output

Also need to extract data from PDF invoices? Try our free Invoice PDF to CSV extractor — drag a PDF, get structured data instantly.

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How to Convert CSV to JSON

Paste your CSV data or load a .csv file. The converter parses comma-separated values and outputs clean JSON. Supports headers, quoted fields, and custom delimiters.

Features

Handles quoted fields with commas and newlines
Auto-detects numbers and booleans
Pretty-printed or compact output
Works with TSV (tab-separated) files too
No server upload — your data stays private