Skip to content
Butter Tools Logo
Butter Tools

JSON ↔ CSV ↔ YAML

Convert structured data between JSON, CSV and YAML in any direction.

→

JSON / CSV / YAML Converter Examples

Click any card to try
menu_book

How to Use JSON / CSV / YAML Converter

To convert between data formats, paste your data into the input area and select the source format (JSON, CSV, or YAML) and the target format you want to convert to. The tool parses the input and outputs the converted data in the chosen format instantly.

The output can be copied to the clipboard with the Copy button. This tool is useful for developers who need to switch between data formats for different systems, APIs, configuration files, or spreadsheet imports. Converting JSON API responses to CSV for analysis in Excel is a common use case.

help

Frequently Asked Questions

What formats does this converter support? expand_more

The converter handles conversion between JSON (JavaScript Object Notation), CSV (Comma-Separated Values), and YAML (YAML Ain't Markup Language). All six bidirectional conversion paths are supported.

How is nested JSON handled in CSV conversion? expand_more

Nested JSON objects are typically flattened when converting to CSV, with nested keys joined by a separator like a dot or underscore. Deep nesting may require manual adjustment of the output.

What is the difference between JSON and YAML? expand_more

Both JSON and YAML represent structured data, but YAML uses indentation instead of braces and brackets, making it more human-readable. YAML is commonly used in configuration files while JSON is standard for APIs.

Can I convert a CSV with headers to JSON? expand_more

Yes. The converter treats the first row of a CSV as the header row, using those headers as object keys in the resulting JSON array.

Does the tool handle CSV files with quoted fields containing commas? expand_more

Yes. Standard CSV quoting conventions are respected, so fields containing commas or line breaks that are enclosed in double quotes are parsed correctly.

Related Tools

All Developer Toolsarrow_forward
code

JSON Formatter

Pretty-print, validate and minify JSON with syntax highlighting.
code

Base64 Encode / Decode

Encode strings or files to Base64 or decode Base64 back to text.
code

URL Encode / Decode

Percent-encode URLs or decode percent-encoded strings.
code

HTML Encode / Decode

Escape HTML entities or unescape them back to characters.