About this tool
Convert YAML documents to JSON format. Useful when reviewing API responses, cleaning config before commit, or sharing readable snippets in docs and PRs.
Paste YAML into Input (maps, lists, and nested keys are supported). Click Convert to produce indented JSON. Example — Convert a small deploy snippet to JSON: try `service: api port: 8080 debug: false` and expect something like `{ "service": "api", "port": 8080, "debug": false }`.
Advanced YAML features (merge keys, custom tags, complex anchors) may not round-trip cleanly. See also: JSON to YAML, YAML Formatter, and JSON Formatter. Runs in your browser — nothing you paste gets uploaded.
How to use
- Paste YAML into Input (maps, lists, and nested keys are supported).
- Click Convert to produce indented JSON.
- Copy the JSON for APIs, tests, or further formatting with the JSON tools.
- If conversion fails, check indentation — YAML is whitespace-sensitive.
Example
Convert a small deploy snippet to JSON
Input
service: api port: 8080 debug: false
Output
{
"service": "api",
"port": 8080,
"debug": false
}Limitations
- Advanced YAML features (merge keys, custom tags, complex anchors) may not round-trip cleanly.
- Unquoted values like `yes`/`no` can be parsed as booleans depending on the YAML engine.
- This is not a full Kubernetes or Helm template evaluator — paste resolved YAML only.
Related guides
1Related tools
3Frequently asked questions
What does the YAML to JSON do?
Convert YAML documents to JSON format. Runs in your browser — no install, no account.
How do I use the YAML to JSON?
Paste YAML into Input (maps, lists, and nested keys are supported). Click Convert to produce indented JSON. Copy the JSON for APIs, tests, or further formatting with the JSON tools. If conversion fails, check indentation — YAML is whitespace-sensitive.
Is the YAML to JSON free?
Yes. No signup, no usage limits, no paywall.
Does the YAML to JSON upload my data?
No. Processing happens locally in JavaScript. Your input is not uploaded, stored, or logged.
What are the limitations of the YAML to JSON?
Advanced YAML features (merge keys, custom tags, complex anchors) may not round-trip cleanly. Unquoted values like `yes`/`no` can be parsed as booleans depending on the YAML engine. This is not a full Kubernetes or Helm template evaluator — paste resolved YAML only.