Is my data uploaded anywhere?

No. The conversion runs in your browser, so nothing is sent to a server.

How does CSV ↔ JSON work?

A CSV with a header row becomes an array of objects keyed by column. Going the other way, an array of objects becomes rows, and a single object becomes a one-row CSV.

How does JSON → XML choose tag names?

Object keys become element names. The whole document is wrapped in a single root element; you can rename it with the Root field.

Are XML attributes preserved?

Yes. Attributes appear in the parsed object with an "@_" prefix and round-trip back to attributes when serialising to XML.

What about YAML anchors and tags?

Standard YAML 1.2 features parse correctly. Custom tags and complex anchors may not survive a round trip through other formats.

Format Converter

Convert between JSON, YAML, CSV & XML.

From

Indent

CSV delimiter

XML root element

Input

bytes

Output

bytes

The URL below carries your input and conversion settings. Anyone who opens it sees the same conversion.

Input is too long to include in the URL. Copy the converted output to share instead.

Share URL

How to use the Format Converter

Pick the source format your data is in (JSON, YAML, CSV, or XML).
Pick the target format to convert to.
Paste your data. The converted output appears on the right.
Adjust per-format options as needed: CSV delimiter, XML root element, indent.
Use the swap button to flip the conversion direction without retyping.

Frequently asked questions

Is my data uploaded anywhere?: No. The conversion runs in your browser, so nothing is sent to a server.
How does CSV ↔ JSON work?: A CSV with a header row becomes an array of objects keyed by column. Going the other way, an array of objects becomes rows, and a single object becomes a one-row CSV.
How does JSON → XML choose tag names?: Object keys become element names. The whole document is wrapped in a single root element; you can rename it with the Root field.
Are XML attributes preserved?: Yes. Attributes appear in the parsed object with an "@_" prefix and round-trip back to attributes when serialising to XML.
What about YAML anchors and tags?: Standard YAML 1.2 features parse correctly. Custom tags and complex anchors may not survive a round trip through other formats.