YAML ↔ JSON
DataConvert between YAML and JSON
Paste a Kubernetes manifest or CI config and convert it to JSON for a script that only reads JSON, or go the other way and turn a JSON API response into YAML for documentation or a config template, using the same well-tested YAML parsing library most JS tooling relies on. YAML anchors and aliases (the `&`/`*` reference syntax) are fully expanded into their referenced values in the JSON output rather than preserved as references, and a parse failure is itself useful: it's a quick way to sanity-check that a YAML file's indentation is actually valid before you feed it to a real tool. One limitation worth knowing: multi-document YAML files separated by `---` only have their first document converted, so a file with several documents needs splitting first. Everything runs client-side.
How to use YAML ↔ JSON
- 1.Paste a Kubernetes manifest or CI config YAML file to convert it to JSON for easier programmatic diffing or validation.
- 2.Convert a JSON API response into YAML when writing documentation or a config template that needs to be more human-readable.
- 3.Use it to sanity-check indentation issues in a YAML file by seeing whether it converts cleanly or throws a parse error.
Frequently asked questions
Use via API, SDK, or MCP
cURL# Free: 1,000 req/day · Pro: 10,000 req/day
curl -X POST https://api.utilix.tech/v1/tools/yaml-to-json \
-H "Authorization: Bearer utx_live_..." \
-H "Content-Type: application/json" \
-d '{"input": "name: Alice\nage: 30"}'Two separate REST endpoints cover this tool's two directions — yaml-to-json is shown above; json-to-yaml is the reverse.
cURL (reverse direction: JSON → YAML)curl -X POST https://api.utilix.tech/v1/tools/json-to-yaml \
-H "Authorization: Bearer utx_live_..." \
-H "Content-Type: application/json" \
-d '{"input": {"name": "Alice", "age": 30}}'Get an API key from your dashboard · Full API docs →