Convert CSV to JSON Online Free
Overview
CSV exports from Excel, Google Sheets, and databases need to become JSON before they can be loaded into JavaScript apps or APIs. Paste your CSV (with or without a header row) and the tool produces an array of JSON objects where each column becomes a key.
How to Use This Tool
Paste your CSV text with headers in the first row. Click Convert to JSON. The tool creates an array of objects, one per row, using the header values as keys. Download or copy the JSON output.
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PDF Tool →Frequently Asked Questions
What if my CSV has no header row?
Toggle the No Header option before converting. The tool will use col0, col1, col2 as key names instead of reading from the first row.
How are numbers and booleans handled?
The converter attempts to parse numeric columns as JSON numbers and true/false values as JSON booleans. All other values remain as strings.
Can I convert a CSV with commas inside field values?
Yes. RFC 4180 CSV wraps fields containing commas in double quotes. The converter correctly handles quoted fields including those with embedded commas and newlines.