// FREE IT TOOLS

JSON to YAML Converter

Convert JSON to clean, readable YAML — perfect for Kubernetes manifests, Ansible variables, and Docker Compose files. All processing happens in your browser.

// EXAMPLES

// JSON INPUT

Nothing is sent to the server — all processing happens in your browser.

// YAML OUTPUT

Paste JSON in the input panel to get started

Why Convert JSON to YAML?

While JSON is the universal language of APIs, YAML is the preferred format for configuration. Converting between the two lets you take API responses and transform them into the config files your infrastructure tools expect.

Kubernetes manifests:K8s resource definitions use YAML. Convert JSON-formatted API responses or generated configs into YAML that kubectl can apply directly.
Ansible variables:Ansible playbooks and variable files are YAML. Paste JSON data from external sources and get clean YAML ready for your playbooks.
Docker Compose:Compose files are YAML by convention. Convert JSON config snippets to the Compose format without manual reformatting.
Helm values files:Helm charts use values.yaml for configuration. Convert JSON overrides to YAML that integrates seamlessly with your chart.

Frequently Asked Questions

Is my data sent to a server?: No. All conversion happens entirely in your browser using JavaScript. Your JSON data never leaves your device. Nothing is transmitted over the network.
What does the --- marker mean in YAML?: In YAML, --- marks the start of a new document within a multi-document file. This converter produces single-document YAML output and does not add --- markers. If you need multi-document YAML, concatenate your documents manually with --- separators.
Why are there no YAML anchors or aliases in the output?: This converter disables anchors (&) and aliases (*) in the output because they are an advanced YAML feature that can confuse users unfamiliar with the format. The output is always plain, readable YAML without any references.
Why is the output indented with 2 spaces?: YAML convention uses 2-space indentation, and the underlying library (js-yaml) generates output with 2-space indentation by default. This matches the style used by Kubernetes, Ansible, and most other tools in the YAML ecosystem.

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Why Convert JSON to YAML?

Kubernetes manifests:K8s resource definitions use YAML. Convert JSON-formatted API responses or generated configs into YAML that kubectl can apply directly.
Ansible variables:Ansible playbooks and variable files are YAML. Paste JSON data from external sources and get clean YAML ready for your playbooks.
Docker Compose:Compose files are YAML by convention. Convert JSON config snippets to the Compose format without manual reformatting.
Helm values files:Helm charts use values.yaml for configuration. Convert JSON overrides to YAML that integrates seamlessly with your chart.

Frequently Asked Questions

Is my data sent to a server?

No. All conversion happens entirely in your browser using JavaScript. Your JSON data never leaves your device. Nothing is transmitted over the network.

What does the --- marker mean in YAML?

In YAML, --- marks the start of a new document within a multi-document file. This converter produces single-document YAML output and does not add --- markers. If you need multi-document YAML, concatenate your documents manually with --- separators.

Why are there no YAML anchors or aliases in the output?

This converter disables anchors (&) and aliases (*) in the output because they are an advanced YAML feature that can confuse users unfamiliar with the format. The output is always plain, readable YAML without any references.

Why is the output indented with 2 spaces?

YAML convention uses 2-space indentation, and the underlying library (js-yaml) generates output with 2-space indentation by default. This matches the style used by Kubernetes, Ansible, and most other tools in the YAML ecosystem.