JSON is great for data exchange but can be hard to read for configuration files. YAML offers cleaner, human-friendly syntax. Converts valid JSON into formatted YAML, preserving data types, nested structures, and arrays. Ideal for Docker Compose, Kubernetes manifests, and CI/CD config.
Paste valid JSON into the input field and the equivalent YAML is generated instantly. The output uses clean, human-readable YAML syntax with proper indentation. You can customize the indentation level (2 or 4 spaces), choose flow style for compact output, and control how long strings and arrays are formatted. Copy the result or download it as a .yaml file.
JSON-to-YAML conversion is useful when creating configuration files for Docker, Kubernetes, CI/CD pipelines (GitHub Actions, GitLab CI, CircleCI), Ansible playbooks, and Terraform. Developers also convert JSON to YAML when they want human-readable configuration that supports comments, when generating Helm chart values, and when preparing Swagger/OpenAPI specifications in YAML format.
The conversion uses js-yaml's dump function with configurable options: indentation width, line width for wrapping, flow level for compact vs. block style, and sort order for keys. JSON types map directly to YAML: objects become mappings, arrays become sequences, strings remain strings (with automatic quoting when needed), and null becomes ~ or null. The output follows YAML 1.2 specification.
Paste valid JSON into the input field. The tool parses the JSON and outputs equivalent YAML with proper indentation. You can copy the result or download it as a .yaml file.
YAML is more readable - it uses indentation instead of braces, supports comments (which JSON does not), and doesn't require quotes around most strings. This makes YAML ideal for configuration files edited by humans.
Transform, format, generate, and encode data instantly. Private, fast, and always free.
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