Config File Validator
Validate INI, YAML, TOML, CI pipelines, Makefiles, and Kubernetes names.
Validating configuration files before deploy
Configuration errors are expensive when they surface in production instead of pull request review. INI, YAML, TOML, Makefile, and CI pipeline files each have syntax rules that differ from generic JSON. A validator hub catches structural mistakes before kubectl, terraform, or your build runner does.
Kubernetes resource names, DNS labels, and label selectors have length and character constraints that YAML parsers will accept even when the API server rejects them. Dedicated checks save round trips through apply --dry-run during tight incident windows.
CI pipeline validators focus on stages, dependencies, and common misconfigurations in GitHub Actions, GitLab CI, and similar formats. Pair validation with formatters so reviewers see both valid structure and readable indentation in the same diff.
Run validators on every config change that touches deploy paths. Local linting keeps internal hostnames, registry URLs, and credential placeholders out of third-party upload tools while you iterate on a fix.
Reference Guide
Validate INI, YAML, TOML, CI pipelines, Makefiles, and Kubernetes naming rules before merge.
| Format | Typical failure |
|---|---|
| YAML | Tabs, duplicate keys, wrong indentation depth |
| TOML | Missing tables, invalid date literals |
| K8s names | DNS label length, invalid characters |
| CI config | Unknown keys, circular job needs |
Format files after validation so reviewers see structure and style in one pass.
Current mode
Operation: yaml-validate
All processing runs locally in your browser. Paste input, click Run, and copy the result.
Example Input
valid: true list: - one
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