CSV to JSON & JSON to CSV Converter
Seamlessly convert tabular spreadsheet CSV data into JSON arrays or export JSON datasets into clean CSV files.
How to Use CSV to JSON Converter
- Select conversion mode: CSV to JSON or JSON to CSV.
- Paste your data or click 'Upload File' to load a CSV or JSON file.
- Select your delimiter (comma, semicolon, or tab) and formatting options.
- Copy the result or click 'Download File' to save it locally.
Technical Specifications & How It Works
Translating between tabular CSV formats and hierarchical JSON structures is a daily task for software engineers, data analysts, and researchers.
Our parser automatically infers numeric and boolean types, supports quoted multiline CSV values, and flattens JSON arrays into RFC 4180-compliant CSV.
Large confidential datasets never leave your computer: parsing and serialization execute 100% in local browser memory.
Frequently Asked Questions
How are numbers and booleans handled during CSV to JSON conversion?
Values that represent valid numbers or booleans (true/false) are automatically parsed into native JSON types rather than strings.
Does the CSV parser support quoted strings containing commas?
Yes, RFC 4180 quotation rules are strictly honored, preserving commas and escaped quotes within cells.
Can I convert tab-delimited TSV files?
Yes, select 'Tab' from the delimiter dropdown to parse or generate TSV spreadsheets.