Paste or type your JSON, CSV, XML or YAML into the input field.
The output updates as you type. Adjust the options if you need a different format.
Copy the result, or share the URL to hand the exact input to someone else.
About JSON → YAML
Convert JSON into clean, block-style YAML. Paste a JSON object or array and get readable YAML with proper indentation, suitable for config files and CI pipelines.
What people use it for
Turn a JSON config into YAML for a tool that prefers it.
Convert an API payload to YAML for documentation.
Frequently asked questions
What style of YAML is produced?
Block style with two-space indentation, quoting values only when needed.
Is it private?
Every calculation happens on this page, in your own browser. Your input is never sent to a server and never logged, which also means the tool keeps working when you are offline.