YAML to JSON Converter
ConvertersConvert YAML to JSON instantly in your browser. Supports Kubernetes manifests, Docker Compose, GitHub Actions and any YAML document. Swap to JSON→YAML in one click.
YAMLyaml
Loading editor…
JSONjson
Loading editor…
Input: 151 chars
About YAML to JSON Converter
The YAML to JSON converter parses any YAML document — including multi-document streams separated by `---` — using js-yaml and outputs a formatted, indented JSON object. Both editors stay live: edit the YAML side and JSON updates instantly, or edit JSON and YAML regenerates from it. JS-yaml fully supports YAML 1.2 including anchors (`&`) and aliases (`*`), so complex Kubernetes and Helm configurations with shared blocks convert cleanly.
Features
- ✓Bidirectional — edit either panel and the other updates in real time
- ✓Powered by js-yaml with complete YAML 1.2 support
- ✓Handles multi-document YAML streams (separated by ---)
- ✓Handles YAML anchors (&) and aliases (*)
- ✓Swap direction to JSON→YAML with a single click
- ✓YAML input with syntax-highlighted CodeMirror 6 editor
- ✓JSON output has interactive tree view and graph visualization
- ✓Download converted JSON as a .json file
- ✓Copy output to clipboard in one click
- ✓Web Worker processing — never blocks the UI
- ✓100% client-side — your data never leaves the browser
Common Use Cases
- Converting Kubernetes manifest YAML files to JSON for API submission
- Parsing GitHub Actions workflow YAML into JSON for tooling integrations
- Extracting JSON data from Docker Compose YAML configurations
- Converting Helm chart values.yaml to JSON for validation schemas
- Debugging Ansible playbook YAML by inspecting the parsed JSON structure
Frequently Asked Questions
QWhat happens with multi-document YAML?
YAML documents separated by `---` are parsed into an array of documents and output as a JSON array.
QAre YAML comments preserved?
YAML comments have no semantic meaning and are stripped during parsing. The JSON output contains only data values.
QIs my data sent to a server?
No. All conversion runs in a Web Worker inside your browser. Nothing is transmitted to any server.