How do I convert JSON to CSV?

Select JSON as input format and CSV as output format. Paste your JSON data, click Convert, and download the CSV file. The converter flattens nested JSON into CSV columns.

Can I convert CSV to JSON?

Yes. Select CSV as input and JSON as output. The converter parses CSV headers as keys and rows as values, producing valid JSON arrays.

What is YAML used for?

YAML is a human-readable data serialization format often used for configuration files, Docker Compose, Kubernetes manifests, CI/CD pipelines, and API specifications.

How large of a file can I convert?

The converter supports files up to 10MB. All processing happens in your browser — no data is uploaded to any server.

JSON CSV XML YAML Converter

Convert between JSON, CSV, XML, and YAML instantly. Beautify, minify, and download — all in your browser.

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Input paste or upload

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📂 Upload File Max 10MB

Output

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Supported Formats

Convert between four popular data formats used by developers and engineers worldwide.

{ }

JSON

JavaScript Object Notation — lightweight data interchange format, easy for humans and machines.

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CSV

Comma-Separated Values — tabular data format supported by spreadsheets and databases.

</>

XML

Extensible Markup Language — structured document format with custom tags and attributes.

# :

YAML

YAML Ain't Markup Language — human-friendly data serialization for config files.

How It Works

All conversion happens locally in your browser — nothing is uploaded to any server.

Conversion Process

Parse: Input data is parsed from the source format into a JavaScript object
Transform: The object is validated and prepared for the target format
Generate: Output is serialized into the destination format with proper formatting
Download: Save the result as a file with the correct extension

Frequently Asked Questions

Common questions about data format conversion.

Select JSON as input and CSV as output. Paste your JSON array of objects — each object becomes a row, keys become column headers. Nested objects are flattened with dot notation.

Yes. The converter handles quoted CSV values properly. Values containing commas, newlines, or double quotes are automatically wrapped in double quotes during CSV output.

No. All conversion happens entirely in your browser using JavaScript. Your data never leaves your device. This makes it safe for sensitive or confidential information.

Nested objects are flattened using dot notation for keys (e.g., "address.city"). Arrays of primitives are joined with semicolons. For complex nested structures, JSON output is recommended.