Validate and format YAML
YAML is whitespace-sensitive and easy to break with a stray tab or misaligned indent. This chain converts YAML to JSON — which immediately surfaces structural errors — and then validates the resulting JSON. If both steps succeed, your YAML is structurally sound. Use this as a pre-commit sanity check.
What it solves
Convert YAML to JSON to validate its structure, then confirm the JSON is well-formed.
Input → Output
YAML Converter input → JSON Validator output across 2 steps.
Runs in
1–2 minutes · fully local in your browser.
Before you start
- A YAML string to validate
The pipeline
-
Convert between YAML and JSON online. Free, private, and 100% client-side.
Params: mode=yaml-to-json
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Validate JSON and pinpoint syntax errors by line and column. Free, private, and 100% client-side.
Runs locally in your browser. The recipe defines the pipeline only — your input never leaves this tab.
▶Run this workflow
Enter your input below and click Run. All processing happens locally in your browser — nothing is uploaded.
Pipeline progress
- YAML Converteryaml-convert
- JSON Validatorjson-validate
Sample input
name: app port: 8080 features: - auth - logging
Expected output
Valid JSON
This pair is executed against the real tools at build time (tests/unit/recipes.test.ts) — the expected output is verified, not illustrative.
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