Service config
name: api replicas: 2 ports: - 80
Valid YAML with normalized JSON preview.
Formatters
YAML Validator
Validate common YAML snippets and preview normalized JSON locally.
At a glance: This YAML validator checks common YAML maps, nested objects, lists, strings, numbers, booleans, and null values locally in your browser. It is useful for Kubernetes snippets, Docker Compose fragments, GitHub Actions examples, and configuration checks.
Your input is processed locally in your browser and is not uploaded to ByteBench servers.
Loading browser tool.
How to use this tool
- Paste or type your input into the tool area.
- Choose the mode or options that match your task.
- Review validation messages before copying the output.
- Use the example button when you want a known-good starting point.
Examples
Common use cases
- Check indentation-sensitive config.
- Validate common CI or deployment snippets.
- Preview YAML as normalized JSON.
When to use this tool
Use this yaml validator page when you need to validate YAML syntax and structure quickly during debugging, review, migration, or documentation work and want to keep raw input in your browser session.
If your task shifts, YAML to JSON Converter and JSON to YAML Converter are usually the next useful tools.
Input and output expectations
- Expected input shape: Paste valid structured data (JSON, CSV, YAML, XML, HTML, SQL, or spec text) in the expected format.
- Typical output: Normalized output intended for review, copy, or handoff to your project files.
- Quick input example: name: api replicas: 2 ports: - 80
- Quick output example: Valid YAML with normalized JSON preview.
Common mistakes to avoid
- Pasting partially broken syntax and assuming the output is production-ready.
- Skipping validation messages before copying output.
- Using formatter output as a substitute for contract or integration tests.
Notes and edge cases
The local parser focuses on common YAML structures. Anchors, aliases, custom tags, merge keys, and complex multiline scalars are intentionally reported as unsupported instead of being guessed.
For privacy-sensitive data, keep using the tool in a trusted browser session and avoid pasting secrets into shared screens, screenshots, browser extensions, or remote support sessions.
FAQ
Does this YAML validator upload my input?
No. This YAML validator runs in your browser and does not send your input to ByteBench servers.
What input format works best in this YAML validator?
Use clean common YAML maps and lists input and run the example first when you want a known-good baseline. If your pasted data came from logs or docs, remove accidental wrappers before validating or converting.
How should I validate results from this YAML validator?
Review the status message, compare output with expected behavior, and run one quick edge-case check. ByteBench helps with utility work, but production-critical output should still be verified in your project pipeline.