CSV ⇄ JSON Converter & Data Table Viewer
Free in-browser bidirectional CSV, TSV, and JSON converter. Automatically parses headers, infers data types (numbers, booleans, nulls), supports custom delimiters (comma, semicolon, tab, pipe), and renders an interactive data table preview. Download output as .json or .csv instantly with 100% client-side privacy.
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How to Convert CSV to JSON in 3 Steps
Paste or Upload Data
Drag and drop your .csv or .json file, or paste data directly into the editor.
Select Delimiter & Options
Choose comma, semicolon, tab, or pipe delimiter and toggle automatic type inference.
Preview & Download
Inspect the interactive spreadsheet preview and copy or download your converted data.
Frequently Asked Questions
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