Output appears here...How to use
01
Paste your JSON
Drop the object or array into the input pane. Try sample loads a small object with an array so you can see how lists are formatted.
02
Click Convert to YAML
The json to yaml converter reads the structure and emits clean YAML. Long string values aren't wrapped across lines, so each value stays where you can grep it.
03
Copy into your config
Paste the result into your YAML config file and commit it. Whenever the source JSON changes shape, re-run the conversion and the formatting stays consistent.
Why JSON to YAML
- Paste JSON and run json to yaml in one click. Nesting, arrays, and types are preserved, so this json to yaml converter keeps your structure intact.
- Standards-compliant YAML via js-yaml, so the output drops straight into config files.
- Runs in your browser. Your data never leaves your device, which keeps private configs private.
- It doubles as a quick yaml format online helper, giving you clean, two-space indented YAML.
- Free with no limit. This json to yaml converter has no sign up and no cap.
Common questions
Will my nested JSON structure survive the trip to YAML?
Yes. Objects become indented mappings, arrays become dash-prefixed lists, and the two-space indentation is applied consistently at every depth. Since YAML is a superset of the same data model, nothing structural needs to be sacrificed in the conversion.
What about comments in the YAML output?
There won't be any, because JSON has no way to carry them in. Convert first, then add comments by hand in your editor; they're one of the main reasons teams keep configs in YAML, so it's worth the extra minute.
Which tool converts yaml to json instead?
The YAML to JSON page on this site handles that direction; it's the yaml to json converter you want when a JSON-only tool needs to read your config. Between the two pages you can hop formats in either direction without touching a terminal.
Is there a yaml editor online built into this page?
No, this page converts and nothing more. If you were hoping for a yaml editor online with linting and autocomplete, your code editor with a YAML plugin is the better home for that. The workflow that works: convert here, then polish in the editor.
Will it serve as a yaml format online helper?
For output, yes: whatever JSON you feed it comes back as consistently indented YAML, which is what most yaml format online searches are after. It won't reformat YAML you already have, though, since the input side only accepts JSON.
Does the conversion change any of my values?
No. Strings, numbers, booleans, and nulls come through as the same types, just written in YAML syntax. Like any honest json converter, it changes representation, never content, so a value that was the string "true" in JSON stays quoted in the YAML rather than becoming a boolean.