JSON to YAML Converter — Live Preview, K8s Templates & Bidirectional
Paste JSON, get YAML instantly — or swap directions with one click. Includes Kubernetes, Docker Compose, and GitHub Actions templates. Syntax highlighting, key sorting, multi-document YAML, and drag-and-drop upload. 100% browser-based, nothing sent to any server.
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Frequently Asked Questions
Does it convert in real-time?
Yes! The output updates automatically as you type, with a 300ms debounce for smooth performance. No convert button needed.
Can I convert YAML back to JSON?
Yes! Click the Swap button to toggle between JSON→YAML and YAML→JSON. Your current output becomes the new input.
What are the sample templates?
We include 7 templates: Kubernetes Service, Kubernetes Deployment, Docker Compose, GitHub Actions, package.json, Ansible Playbook, and AWS CloudFormation — all ready to convert.
What is multi-document YAML?
When enabled, JSON arrays are split into separate YAML documents separated by --- markers. This is useful for Kubernetes manifests that bundle multiple resources.
Is my data private?
100%. All conversion happens in your browser using the js-yaml library. No data is ever sent to any server.