CSV to JSON Converter
Free online CSV to JSON converter. Turn spreadsheet or database CSV exports into a clean JSON array of objects instantly in your browser, with full quoted-field support.
🔒 Your CSV is converted entirely in your browser — nothing is uploaded to any server. Tip: press Ctrl+Enter to convert.
Free CSV to JSON Converter
This free online CSV to JSON converter turns spreadsheet and database exports into clean, ready-to-use JSON in one click. Paste your CSV, and instantly get a JSON array of objects keyed by your column headers — with proper handling of quoted fields, commas and line breaks inside values, and optional number/boolean typing. It’s fast, free and 100% private: everything runs in your browser, so your data is never uploaded anywhere.
How to convert CSV to JSON
- Paste your CSV into the left box (or click Load sample to see an example).
- Click Convert to JSON. The JSON appears on the right, syntax-highlighted.
- Keep First row is header on to key each record by column name, or turn it off to get a plain array of rows.
- Use Typed values to convert numbers,
true/falseandnullto real JSON types instead of strings, and pick a delimiter (or leave it on Auto-detect). - Toggle Minify for compact output, then Copy or
Download the
.jsonfile.
What is JSON, and why convert from CSV?
CSV (Comma-Separated Values) is the universal table format, but most apps, APIs and JavaScript code expect JSON — a structured format of key–value objects and arrays. Converting CSV to JSON lets you feed spreadsheet data straight into an API, seed a database, mock test data, or use a CSV export inside front-end code without writing a parser yourself.
The hard part is that CSV is deceptively tricky: a value can contain the delimiter, double quotes, or even
a line break as long as it’s wrapped in quotes. This converter uses a proper
RFC 4180 parser, so "Riya, Patel" stays one field and
"John ""JJ"" Doe" is read correctly as John "JJ" Doe. With typing enabled it also
preserves awkward values like leading-zero codes (007) as strings instead of mangling them.
Frequently asked questions
Is this CSV to JSON converter free and private?
Does it handle quotes, commas and line breaks inside values?
"") and even newlines inside a quoted field are read correctly and never split a row into the
wrong number of columns.What does the “Typed values” option do?
29, true, null) instead of strings. A round-trip check keeps values
that would change — like leading-zero codes (007) or fixed decimals (1.50)
— safely as strings. Turn it off to keep every value as text.