How are nulls and booleans handled?

JSON `null` becomes YAML `null`; booleans and numbers are preserved as scalars.

Can I round-trip JSON → YAML → JSON?

Yes, for any valid JSON. The YAML-to-JSON tool reverses this conversion losslessly.

JSON to YAML

Translate JSON into YAML syntax with proper indentation and string quoting. Ideal for moving config between tools that prefer one format over the other.

Runs locally in your browser

For large JSON, open fullscreen for a wider view

JSON input

0 chars · 1 line

YAML output

Output will appear here…

Indent

Flow style (compact)Force double-quoted strings

YAML to JSON

Convert YAML config into strict JSON.

JSON Formatter

Beautify and format JSON with configurable indentation.

JSON to CSV

Flatten JSON arrays into CSV rows.

TOML to JSON

Convert TOML configuration files into JSON.

About JSON to YAML

Translate JSON into YAML syntax with proper indentation and string quoting. Ideal for moving config between tools that prefer one format over the other.

JSON to YAML is part of FizzKit — a collection of focused, browser-based tools. Because everything runs locally, it works offline once loaded and never exposes your data to a remote server.

Frequently asked questions

YAML 1.2, which is a strict superset of JSON.

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