YAML to JSON Converter
Got a YAML config that you need in JSON? Maybe you're migrating a config file from YAML to JSON format, debugging a Kubernetes manifest by examining its structure as JSON, or feeding configuration data into a tool that only understands JSON. Paste your YAML and get clean, properly formatted JSON instantly.
The parser handles all the common YAML features — nested objects with indentation, arrays with the dash syntax, inline values, comments (which get stripped since JSON doesn't support them), and proper type inference. Numbers stay numbers, booleans stay booleans, null stays null.
Why Convert YAML to JSON?
Several scenarios come up regularly. You need to use kubectl apply but want to manipulate the manifest programmatically first — JSON is much easier to process withjq or any programming language. Or you're comparing two configs and want a canonical format. Or you're building a tool that accepts JSON input and your config is in YAML.
Kubernetes Debugging
K8s manifests in YAML can be tricky to debug, especially with multi-resource files. Converting to JSON makes the structure explicit — every nesting level is shown with braces instead of relying on indentation. It's easier to spot issues like a command list that should be an array but got parsed as a single string.
API Request Bodies
APIs expect JSON. If your configuration or data is in YAML (because humans prefer editing YAML), you need to convert before making API calls. This is common in DevOps workflows where you maintain config in YAML (version controlled, human-readable) but submit it to APIs as JSON.
YAML Parser Details
Our parser runs entirely in the browser — no external libraries loaded. It handles standard YAML features: flow scalars, block scalars, sequences (arrays), mappings (objects), comments, multi-line strings, and type inference. For very complex YAML (anchors, aliases, custom tags), you might need a full YAML spec parser, but for the vast majority of real-world YAML files, this handles everything correctly.
Round-Trip Conversion
Need to go JSON → YAML → JSON? We have both converters. Note that comments in YAML are lost during conversion (JSON doesn't support comments), and key ordering might change. If preserving exact formatting matters, keep your YAML source file and only use JSON as an intermediate processing format.
Related JSON Tools
After converting, explore the result with our JSON Viewer. Need the reverse? Use JSON to YAML. Validate the output for correct syntax.