CSV to JSON without a spreadsheet
Paste a CSV, pick the delimiter your file uses, and get back a JSON array of objects (with headers) or a nested array of rows (without). Great for quickly reshaping data into an API-friendly shape.
How to use
- Paste your CSV.
- Choose a delimiter (comma is the default).
- Toggle First row is a header to fit your data.
- Copy or download the JSON.
Frequently asked questions
About the CSV to JSON
Spreadsheet exports arrive as CSV, but code and APIs usually want JSON. CSV to JSON converts rows into an array of objects, using the header row as the property names.
The conversion is done in your browser. Your data is not uploaded.
How to use it
- Paste your CSV or load it into the input.
- Choose the delimiter that matches your data (comma, semicolon, tab or pipe) and whether the first row is a header.
- Copy or download the generated JSON.
Common uses
- Preparing spreadsheet data as seed data for an app or test.
- Feeding an exported report into a script or API.
- Quickly checking how a CSV will be interpreted.
Tips for better results
- If your data has a header row, make sure it holds clear, unique column names, since these become the JSON keys.
- European exports often use semicolons rather than commas. If everything lands in one column, change the delimiter.
- Wrap values containing commas or line breaks in double quotes, as the CSV standard requires.
Good to know
- Every value is output as a string, so numbers and booleans need converting in your own code if you need those types.
- Nested JSON structures cannot be expressed in a flat CSV, so the output is always a flat list of objects.
Built and maintained by Neha Singh. Found a problem or have a suggestion? Email hello@zevqi.com.