JSON <-> YAML Converter

About the Json Yaml

Convert JSON to YAML and YAML to JSON online, free and private. Built for DevOps engineers working with Kubernetes manifests, docker-compose files, and CI pipelines - all conversion happens in your browser, so configs never leave your machine.

JSON and YAML are the two dominant configuration formats. YAML rules Kubernetes manifests, docker-compose files, Ansible playbooks, and GitHub Actions workflows, while most APIs and tools emit JSON. Converting between them is a daily task for DevOps engineers and anyone maintaining infrastructure as code.

This converter translates in both directions with full support for nested objects and arrays. Conversion happens entirely client-side, so proprietary configs and internal service definitions stay on your machine.

Use cases and examples

Turn an API response or Helm values dump into a readable YAML config you can drop into a repository.

Convert a docker-compose.yml into JSON when a tool or platform expects structured input.

Check what a Kubernetes manifest looks like in the other format - useful when YAML anchors obscure the effective structure.

# docker-compose.yml to JSON
{"services": {"web": {"image": "nginx", "ports": ["8080:80"]}}}

How to use

1. Paste JSON or YAML into the input panel.
2. The converted output appears in real time.
3. Use the swap button to change the conversion direction.
4. Copy the result straight into your Kubernetes or compose file.

Frequently Asked Questions