CSV to JSON Converter
Turn comma-separated values — even messy ones with quoted fields, embedded commas and line breaks — into a tidy JSON array keyed by the header row. It all happens in your browser, which makes prepping data for an API or a bit of code quick and private.
- 100% free
- Private & safe
- Runs in your browser
Why use CSV to JSON?
CSV to JSON is a quick, no-nonsense developer utility that runs entirely client-side, so your code and data never leave your machine.
- Runs instantly in your browser — nothing to install, nothing uploaded.
- Completely free, with no account, no watermarks and no usage limits.
- Handles Input: CSV (quoted fields supported); Output: JSON array of objects.
- Paste your CSV, with the first row as headers.
- Works on any device — desktop, tablet and phone — and is fully keyboard accessible.
How to use CSV to JSON
- Paste your CSV, with the first row as headers.
- Click Convert to JSON.
- Each row becomes an object keyed by the header names.
- Copy or download the JSON.
Examples
- Converting an exported spreadsheet into JSON for an API.
- Turning a CSV log into structured records.
Supported formats & limits
- Input: CSV (quoted fields supported)
- Output: JSON array of objects
Limitations
- The first row is treated as the header.
- All values are parsed as strings; convert types in your own code if needed.
Frequently asked questions
Does it handle quoted commas?
Yes. Fields wrapped in quotes may contain commas, quotes and line breaks.
Are values typed?
Values are strings; cast numbers/booleans in your application as required.
Is anything uploaded?
No — parsing happens in your browser.
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