Rows to JSON — CSV In Browser
Convert CSV rows into a JSON object array using the first row as property names. This helps inspect a small tabular dataset before supplying it to a web application.
- Runs in your browser
- Nothing is uploaded
- No signup; device limits apply
Numbers stay on your device. Nothing is sent to a server.
How to use this tool
Use unique column names on the first line and values on subsequent lines. Quoted commas are handled, but simplify multiline cells and avoid duplicate headings before conversion.
Results and examples
A name,score header followed by Mina,90 creates an object with those two properties. The score remains the string "90", so convert it explicitly afterward if a numeric type is required.
Limitations
- Numbers, booleans and dates are not inferred automatically from strings.
- Duplicate headings and embedded line breaks can cause lost values or unintended rows.
Fields
| Field | Guidance and constraints |
|---|---|
| CSV | Check the unit and format displayed beside this field. |
Data handling
Processing stays in the current browser tab; the site does not upload tool input for the calculation itself.
Sources
Frequently asked questions
Does 90 become a number?
A name,score header followed by Mina,90 creates an object with those two properties. The score remains the string "90", so convert it explicitly afterward if a numeric type is required.
What if heading names are duplicated?
Numbers, booleans and dates are not inferred automatically from strings. Duplicate headings and embedded line breaks can cause lost values or unintended rows.
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