YAML to JSON Converter

YAML is a human-readable data serialization format that uses indentation for hierarchy instead of braces and brackets. It supports comments, multi-line strings, and anchors for reusable values. JSON is stricter — requiring double-quoted keys, commas between items, and curly braces — but is natively supported by browsers via JSON.parse() and is the standard format for REST APIs, package.json files, and web configurations. Both formats represent the same data structures (objects, arrays, strings, numbers, booleans, null).

Yes. This tool supports bidirectional conversion. Click "YAML → JSON" to convert YAML into JSON, or "JSON → YAML" to convert in the opposite direction. The Swap button exchanges the contents of both panes for quick back-and-forth conversion. This is useful when working with Docker Compose files, Kubernetes manifests, GitHub Actions workflows, or any YAML configuration that needs to be consumed as JSON.

Yes. The converter supports literal block scalars (|) which preserve line breaks exactly as written, and folded block scalars (>) which join lines with spaces. Block chomping indicators (|-, |+, >-, >+) control trailing newline behavior. These are commonly used in CI/CD pipelines for multi-line shell commands and in Kubernetes for embedded configuration files.