YAML Tools
Format YAML and convert between YAML and JSON.
YAML in config and DevOps
YAML is the format of choice for Kubernetes manifests, CI/CD configs, Docker Compose, and many application config files. It is human-friendly but sensitive to indentation and structure. This hub brings together the YAML Formatter and YAML to JSON so you can clean up configs, validate structure indirectly via JSON, and convert when you need to feed YAML data into JSON-based tools or APIs.
Both tools run in your browser. Paste YAML, format it for readability or convert it to JSON in one step. No uploads and no account. The formatter helps when you inherit poorly formatted YAML or need to standardize indentation; the converter is useful for config migration, API payloads, or when your stack expects JSON.
Format and convert without leaving the browser
The YAML Formatter takes minified or inconsistent YAML and outputs consistently indented, readable YAML. The YAML to JSON tool produces valid JSON from the same YAML—handy when you are moving from a YAML-based config to a JSON API or when you need to process the structure programmatically as JSON. For the reverse direction (JSON to YAML), use the dedicated converter in the JSON tools or the convert bar on any JSON tool. Together these cover the main YAML workflows developers need on a daily basis.
Tools in this category
Frequently Asked Questions
What YAML tools are available?
The YAML tools category includes a YAML Formatter (beautify and indent) and YAML to JSON converter. For the reverse, use the JSON to YAML tool in the JSON tools section.
Can I convert YAML to JSON?
Yes. Paste your YAML into the YAML to JSON tool to get valid JSON. Useful for config migration or APIs that require JSON.
Is my YAML data sent to a server?
No. All YAML processing runs in your browser. Your data stays on your device.
What YAML version is supported?
The tools use a widely compatible YAML 1.2 parser. Most common YAML features, including anchors and aliases, are supported.
Where is JSON to YAML?
JSON to YAML is available from the JSON Formatter and other JSON tools via the convert bar, and as a dedicated tool under the JSON/converters ecosystem.