YAML to JSON Converter
Paste a YAML configuration file below to convert it into structured, indented JSON — handy for debugging Docker Compose files, CI pipelines, Kubernetes manifests and app configs.
How to Use the YAML to JSON Converter
- Paste your YAML content into the input box, keeping the original indentation intact.
- Click "Convert to JSON" to parse it and pretty-print the equivalent JSON structure.
- If the YAML has a syntax error, a friendly error message explains what's wrong.
- Click "Copy" to copy the resulting JSON to your clipboard.
Why Use This Tool?
Is my YAML data uploaded anywhere?
No. The YAML is parsed entirely in your browser using the open-source js-yaml library loaded from a CDN, and the parsing itself runs locally — nothing you paste is sent to any server. This is especially important for YAML, since Kubernetes manifests, CI/CD pipeline configs and Docker Compose files often reference secrets, environment names or internal hostnames you don't want leaving your machine.
Why convert YAML to JSON at all?
JSON is easier to consume programmatically in most languages and is required by many APIs and tools that don't understand YAML directly. Converting also helps you spot exactly how YAML's indentation-based structure (which can be ambiguous to read) maps to explicit JSON objects and arrays.
What YAML features are supported?
The converter supports standard YAML 1.2 features including nested mappings, sequences, scalars, comments, anchors/aliases and multi-document markers, powered by the widely-used js-yaml parsing library.
Who uses a YAML to JSON converter?
DevOps engineers debugging Kubernetes or GitHub Actions YAML, backend developers converting config files for a JSON-only library, and anyone learning YAML syntax who wants to see its JSON equivalent side by side.