What does this tool do?
Paste CSV data below to convert it into a JSON array of objects. Everything runs locally using JavaScript in your browser — nothing you paste or upload is ever sent to a server.
How to use this tool
- Paste your csv data into the left-hand box.
- Click Convert to JSON.
- Copy the json output from the right-hand box.
Frequently asked questions
How does this tool handle the header row?
The first line of your CSV is treated as column headers and becomes the key names for every object in the resulting JSON array.
Does it handle quoted fields with commas or line breaks?
Yes — fields wrapped in double quotes can safely contain commas, line breaks, and escaped quotes (""), following the standard CSV quoting convention.
What if a row has fewer columns than the header?
Missing values are filled in as empty strings so every object in the output has the same set of keys.