JSON to YAML
Convert JSON data to YAML.
POST
1 credit
/v1/convert/json-to-yaml
curl -X POST "https://convert.toolkitapi.io/v1/convert/json-to-yaml" \
-H "Content-Type: application/json" \
-H "Authorization: Bearer YOUR_API_KEY" \
-d '{"data": {"name":"example","version":"1.0.0","tags":["cli","api"]}}'
import httpx
resp = httpx.post(
"https://convert.toolkitapi.io/v1/convert/json-to-yaml",
json={"data": {"name":"example","version":"1.0.0","tags":["cli","api"]}},
)
print(resp.json())const resp = await fetch("https://convert.toolkitapi.io/v1/convert/json-to-yaml", {
method: "POST",
headers: {
"Content-Type": "application/json",
},
body: JSON.stringify({"data": {"name":"example","version":"1.0.0","tags":["cli","api"]}}),
});
const data = await resp.json();
console.log(data);# See curl example
Response
200 OK
{
"yaml": "name: example\nversion: 1.0.0\ntags:\n- cli\n- api\n"
}Description
Convert JSON data to YAML.
How to Use
1
1. POST a JSON body with `data`.
2
2. Optionally set `flow_style` for inline YAML.
3
3. Read the `yaml` string from the response.
About This Tool
Converts any JSON value to YAML. YAML is commonly preferred for configuration, CI pipelines (GitHub Actions, GitLab CI), and Kubernetes manifests due to its reduced visual noise.
Block style (newline-separated) is the default; set `flow_style` for compact bracket-style output.
Why Use This Tool
- CI configuration — Generate GitHub Actions / GitLab CI YAML from JSON templates
- Kubernetes manifests — Produce K8s YAML from programmatic JSON source
- Config conversion — Migrate JSON configs to YAML for human readability
- Documentation — Emit YAML examples from JSON schemas
Frequently Asked Questions
Is ordering preserved?
Yes — key order follows the JSON input.
How are nulls represented?
JSON `null` maps to YAML `null` (or `~`).
Multi-document output?
Single-document only. Produce multiple documents yourself by concatenating with `---` separators.
Start using JSON to YAML now
Get your free API key and make your first request in under a minute.