Learn how to convert CSV tabular spreadsheets into structured JSON arrays of objects. Includes header parsing, data type coercion, and Python / Node.js examples.
Frequently Asked Questions
Q1. How does CSV to JSON conversion work?
The converter reads the first line of the CSV file as header key names. Each subsequent line is parsed into a key-value JSON object, assembling an array of structured objects.
Q2. Does the converter preserve numeric and boolean data types?
Yes. Smart converters inspect value strings and automatically convert numeric values to JSON numbers and "true"/"false" strings to native booleans.
Q3. What if my CSV file uses semicolons (;) instead of commas?
International CSV files (e.g. from European versions of Excel) often use semicolons. DevToolAdda allows you to specify custom column delimiters.