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CSV ↔ JSON Converter

Free tool for converting between CSV, JSON, and YAML with table preview

csv-json
CSV ↔ JSONUTF-8CSV → JSON
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CSV → JSON

Convert CSV data to an array of JSON objects

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JSON → CSV

Transform a JSON array back into CSV format

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CSV → YAML

Convert CSV to a readable YAML format

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Table Preview

Visual preview of CSV data as a table

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Frequently Asked Questions

Paste your CSV data into the input field — the first row will be used as JSON object keys. Each subsequent row becomes a separate object in the array. The delimiter is detected automatically.
The tool auto-detects the delimiter: comma (,), semicolon (;), and tab. Quoted fields containing delimiters are also fully supported.
Yes, switch to JSON → CSV mode and paste a JSON array of objects. Object keys become CSV headers, and values become table rows.
Yes, the CSV → YAML mode converts tabular data to YAML format. Each CSV row becomes an element of a YAML array with keys from the headers.