⇄ YAML ↔ JSON Converter
Convert YAML to JSON and JSON to YAML directly in your browser, with syntax checking and indentation options.
Input (YAML)
Result (JSON)
The converted result will be output here.
Unlock AI Diagnosis Report
Enter your email address to unlock the detailed AI resolution report with concrete optimization suggestions and step-by-step instructions for free.
Guide & best practices
YAML ⇄ JSON Converter with correct type mapping
Convert configuration files between YAML and JSON and understand what happens to comments, anchors and data types.
Typical use cases
Useful for CI/CD configs, Kubernetes/Docker Compose files, API examples and aligning different formats.
How Balou converts YAML/JSON
Pick the direction and paste the content; Balou parses and converts locally, resolving YAML constructs.
Format conversion best practices
Note that comments are lost in JSON, check type conversions and validate the result before use.
Frequently asked questions
What happens to YAML comments during conversion?
JSON has no comments; they are lost when converting to JSON.
How are anchors and aliases (&/*) handled?
They are resolved/expanded so the JSON contains the concrete values instead of references.
Why does a data type change (e.g. yes → true)?
YAML interprets values like yes/no/on/off as booleans; quote the value ("yes") if you want a string.
Are multiline strings preserved?
Yes, block scalars are translated into corresponding JSON strings with line breaks.