Config Structure Checker
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Validators and utilities that complement Config Structure Checker — same session, no sign-up.
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Validate JSON or YAML config: syntax and optional required top-level keys. Paste config, list required keys (one per line), get errors.
About this tool
Checks that config is valid JSON or YAML and that all required top-level keys are present. Use for package.json, app config, CI configs. Leave "Required keys" empty to only validate syntax.
How to use this tool
- Paste your sample in the input (or fetch from URL if this tool supports it).
- Run the main action on the page to execute Config Structure Checker.
- Read the result, fix the source data or config, and re-run if needed.
What this check helps you catch
- Validate JSON or YAML config: syntax and optional required top-level keys. Paste config, list required keys (one per line), get errors.
- Limits called out in the description (what this tool does not verify — e.g. live network reachability, issuer databases, or strict schema contracts unless stated).
- Structural or syntax mistakes that would break parsers, serializers, or the next step in your workflow.
FAQ
- What does Config Structure Checker do?
- Validate JSON or YAML config: syntax and optional required top-level keys. Paste config, list required keys (one per line), get errors. Use the form above, then see “How to use” and “What this check helps you catch” for behavior detail.
- Is this a substitute for server-side validation?
- No. Use it for manual checks and triage; production systems should still validate and authorize on the server.
- Where does processing happen?
- Most validators here run in your browser. If a tool calls an API, that is stated on the page. See the site privacy policy for data handling.