JSON to YAML Converter translates JSON data into YAML format, removing brackets and quotes in favor of the indentation-based syntax that Kubernetes, Docker Compose, GitHub Actions, and Ansible expect. Paste a JSON configuration or API response and get clean, readable YAML output you can paste directly into your infrastructure files or share with your team.
JSON and YAML represent the same data structures but with different syntax. JSON uses curly braces, brackets, quotes, and commas. YAML uses indentation and dashes instead. The converter parses the JSON tree and re-serializes it following YAML 1.2 rules: objects become key-value pairs, arrays become dash-prefixed sequences, strings are quoted only when necessary, and booleans and numbers remain unquoted.
JSON arrays become YAML sequences, where each item is prefixed with a dash. For example, ["JS", "Python"] becomes a two-line YAML sequence with "- JS" and "- Python". Arrays of objects become sequences of YAML mappings.
Yes. YAML has strong type support. Boolean values true and false remain unquoted in YAML, and integer and float values are also kept unquoted. Strings are quoted only when they could be ambiguous — for example, a string "true" is quoted to prevent YAML from treating it as a boolean.
Yes. If a JSON string value contains newlines (\n), the converter uses YAML literal block scalar syntax with the | character to preserve the line breaks. This is important for embedded scripts or multiline text that appears in configuration values.
Yes, use the YAML to JSON tool on this site to convert in the other direction. JSON and YAML represent the same data model so the round-trip conversion is lossless for the data values, though comments added in YAML will be lost when converting back to JSON.
No. The conversion runs entirely in your browser. Your JSON data is never uploaded, making this safe for API keys, environment variables, and other configuration secrets.
Yes, completely free with no account required.
Tool workspace
Free JSON to YAML converter online — instantly transform structured JSON data into cleanly readable YAML structures. Ideal for Kubernetes, Docker, and DevOps configs. No login.
Output
Input
{"name": "App", "replicas": 3}Output
name: App replicas: 3