CSV ↔ JSON Converter
Convert between CSV and JSON formats with custom delimiters. Everything runs locally in your browser.
What is CSV and JSON?
CSV (Comma-Separated Values) is a simple file format for tabular data, widely used for spreadsheets and data exchange. JSON (JavaScript Object Notation) is a structured format used by APIs and modern applications. Converting between them is a common task when importing/exporting data.
CSV is great for Excel and database imports but lacks structure for nested data. JSON is perfect for APIs and web apps but harder to edit in spreadsheets. This converter bridges the gap, letting you move data between tools seamlessly.
This tool handles custom delimiters (comma, semicolon, tab, pipe) and properly escapes special characters. Unlike other online converters, qtoolkit.dev processes everything client-side in your browser, so your data never leaves your machine.
Use Cases
Export database query results to CSV for Excel, convert API JSON responses to CSV for analysis, import CSV data into web applications expecting JSON, and transform spreadsheet data for API consumption.