Output appears here...How to use
01
Paste the YAML
A CI config, a Kubernetes manifest, or any .yml file's contents go in the input pane. Try sample loads a small config-style document with a list.
02
Click Convert to JSON
Strict YAML parsing runs first, so mistakes surface as clear errors instead of silently wrong data. Valid input becomes indented JSON on the right.
03
Copy the JSON out
Take the result into your code, an API call, or a JSON-only tool. Fix the YAML and reconvert as often as the debugging session demands.
Why YAML to JSON
- Paste YAML and run yaml to json in one click. Strict YAML 1.2 parsing means this yaml to json converter catches real syntax errors instead of guessing.
- Output is pretty-printed JSON with a two-space indent, so it is readable straight away.
- Runs in your browser. Your data never leaves your device, which keeps private configs private.
- It works as a yaml format online check too, since invalid YAML fails clearly before it converts.
- Free with no limit. This yaml to json converter has no sign up and no cap.
Common questions
Why does my CI pipeline reject YAML that looks correct?
The classic culprits are invisible: a tab where spaces belong, one level of indentation off by a space, or a value like 8:30 parsed as something you didn't intend. Converting the file here shows you the parser's honest reading of it, which is often all it takes to spot where your intent and the actual structure diverge.
What kinds of YAML errors does strict parsing catch?
Structural ones: bad indentation, unclosed quotes, duplicate keys, and malformed lists or mappings all fail with a message rather than producing a half-right document. What it can't catch is a valid file with wrong values, so a green pass here means syntax, not correctness.
Where's the reverse direction, json to yaml?
That's the JSON to YAML page, the matching half of this pair. Convert your JSON config there when a human needs to maintain it, and come back here when a machine needs to consume it.
Can this act as a yaml format online checker?
Close to it. A successful conversion proves the YAML parses, which covers what most yaml format online searches want. There's no yaml editor online attached, though, so make the fix in your own editor and paste the file again to re-check.
Does it convert other files or raw strings too?
Input must be YAML, but there are neighbors for other cases. As a general json file converter starting point, or a string to json converter online for escaped data, the JSON Formatter cleans loose input into valid JSON, and the other converter pages take it from there.
Are booleans and numbers from the YAML kept as real types?
Yes, under YAML 1.2 rules: true becomes a boolean and 42 a number, while values like yes or no stay strings rather than being guessed into booleans the way old YAML 1.1 parsers did. That strictness prevents the classic Norway problem where a country code turns into false.