CSV to JSON
Convert CSV to JSON. Auto-detects comma, semicolon, tab, and pipe delimiters. Handles quoted fields, BOM, Windows line endings, and auto-types numbers and booleans.
Auto-detects delimiter · handles quotes · types numbers & booleans
How to convert CSV to JSON
Paste your CSV data or upload a file, and the tool turns each row into a JSON object using the header row for keys. You get clean, valid JSON ready to drop into an API, config file or app. It handles quoted fields and commas inside values, so spreadsheets and exports convert correctly.
Why convert CSV to JSON?
CSV is great for spreadsheets, but most web APIs, JavaScript apps and NoSQL databases expect JSON. Converting lets you move tabular data from Excel or a database export straight into code without rewriting it by hand. The conversion runs in your browser, so your data is never uploaded to a server.
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Frequently Asked Questions
How do I convert CSV to JSON?
Paste your CSV (or upload it), and the tool outputs clean JSON instantly. It auto-detects comma, semicolon, tab, and pipe delimiters.
Does it handle quoted fields and numbers?
Yes. Quoted fields, BOM, and Windows line endings are handled, and numbers and booleans are auto-typed.
Is the CSV to JSON converter free?
Yes, completely free, with no sign-up, and it runs entirely in your browser.
Is my data uploaded?
No. Conversion happens locally in your browser — your data is never sent to a server.