YAML to JSON Converter
Convert YAML to JSON and JSON to YAML online. Free bidirectional YAML JSON converter with syntax validation and formatting.
Input (YAML)
Output (JSON)
Frequently Asked Questions
What is the difference between YAML and JSON?▾
YAML and JSON both represent structured data but differ in syntax. JSON uses braces and brackets with quoted strings. YAML uses indentation and is more human-readable. YAML supports comments, multi-line strings, and anchors. JSON is a subset of YAML 1.2.
When should I use YAML instead of JSON?▾
Use YAML for configuration files (Kubernetes, Docker Compose, GitHub Actions, Ansible) where human readability and comments are important. Use JSON for APIs and data exchange where strict parsing and wide language support matter.
Is YAML a superset of JSON?▾
Yes, YAML 1.2 is a superset of JSON, meaning all valid JSON is also valid YAML. However, YAML 1.1 (used in older tools) has some differences with JSON in how it handles certain values like 'yes'/'no' being treated as booleans.
How do I convert a YAML file to JSON?▾
Paste your YAML content into the input field and click Convert. The tool parses the YAML and outputs formatted JSON. You can then copy or download the result.