CSV to JSON & JSON to CSV Converter

Convert CSV to JSON arrays or JSON to RFC 4180 CSV tables. Features automatic type inference, custom delimiters, and client-side processing with zero uploads.

Delimiter:

Parse numbers & booleans Pretty Print (2-space)

CSV Input 0 lines

JSON Output 0 items

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RFC 4180 CSV Standard Explained

CSV appears simple, but real-world data frequently contains commas inside quotes (e.g. `"Apple, Inc."`), escaped quotes, and multiline text. Naive split calls corrupt column mapping. Lucentool strictly adheres to RFC 4180 to guarantee 100% roundtrip fidelity with Excel and SQL database dumps.

Smart Type Inference

Number parsing: Automatically converts numeric strings to native JSON numbers.
Booleans & Nulls: Maps literal strings to native boolean values and null.

CSV to JSON & JSON to CSV Converter

RFC 4180 CSV Standard Explained

Smart Type Inference

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