CSV to JSON Converter — How It Works
Paste a CSV (comma-separated values) with a header row and this converter produces a JSON array of objects — each row becomes an object keyed by the header names. Quoted fields are handled correctly: values containing commas, quotes, or newlines (RFC 4180 style) parse properly. The reverse direction builds a clean CSV from a JSON array of objects, quoting any field containing special characters.
Why Convert CSV to JSON?
JSON is the universal format for APIs, databases, and web apps. When a client hands you a spreadsheet export (CSV), converting it to JSON lets you insert it into MongoDB, PostgreSQL jsonb, Elasticsearch, or a browser app in one step. Converting JSON to CSV is just as common for reporting, Excel analysis, Google Sheets import, and machine-readable exports.
CSV to JSON FAQ
Do I need a header row for CSV → JSON? Yes — the first row becomes the object keys. What if my CSV uses semicolons? This converter expects commas; replace the delimiter before converting. Are numbers kept as numbers? Values are kept as strings by default for safe round-tripping. Is my data uploaded? No — everything is converted locally in your browser, nothing is sent anywhere.