Paste or upload CSV data and get clean JSON instantly, entirely in your browser.
Last updated: August 8, 2026
Convert CSV to JSON instantly in your browser. Supports custom delimiters, quoted fields with embedded commas, and automatic number/boolean detection.
A: Yes. The parser follows RFC 4180 conventions — a field wrapped in double quotes can contain commas, newlines, and escaped quotes ("") without breaking the column structure.
A: Uncheck "First row is header" and each row converts to a JSON array of values instead of an array of objects.
A: With "Infer numbers/booleans" checked, values like 42, 3.14, true, and false are converted to their JSON types instead of staying as strings. Turn it off to keep everything as text.
A: No. Parsing happens entirely in your browser — files and pasted data are never uploaded to a server.
Convert data between JSON, CSV, XML, and other formats for API responses and system integration.
Transform data formats when migrating between different systems, databases, or applications.
Bridge different systems by converting data formats to ensure compatibility and smooth data flow.
Convert JSON to CSV for spreadsheet analysis, or transform data for use in analytics tools and platforms.
All processing happens locally in your browser. Your data never leaves your device, ensuring complete privacy and security. No registration required.
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