Free Tool
YAML to JSON Converter
Convert YAML data to JSON format instantly. Free, fast, and secure in-browser converter with validation and formatting—no signup required.
YAML Input
JSON Output
Convert YAML to JSON online free. Paste Kubernetes manifests, Docker Compose, or Ansible YAML and get validated JSON instantly.
- Tool
- YAML to JSON Converter
- Category
- All JSON tools
- Availability
- Browser-based tool
Common questions
Why convert YAML to JSON?
Many APIs, SDKs and tools (kubectl --output, JSON Schema validators, JavaScript apps) expect JSON. Converting lets you reuse a YAML config or manifest where JSON is required.
What happens to YAML comments and anchors?
Comments are dropped because JSON has no comment syntax. Anchors and aliases are expanded into their full values.
I get an indentation error — how do I fix it?
YAML is indentation-sensitive and does not allow tabs. Paste the file into YAML Validator to find the exact line.