#397 · Developer Tool

Renovate Config Validator

Run practical local checks against a Renovate configuration. The validator parses JSON, verifies common top-level fields and package-rule shapes, catches renamed or contradictory options, and returns a normalized copy for review.

Developer Input

Renovate JSON configuration
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How to use this developer tool

  1. Paste your input or load the provided sample.
  2. Adjust any options shown beneath the editor.
  3. Select Validate Config or press Ctrl/Cmd + Enter.
  4. Review the summary, diagnostics, and exported output before committing it.

What this developer tool does

Known configuration fields are checked by expected type. Each packageRules entry is inspected for at least one matcher and one action, while obvious deprecated keys produce warnings.

Known configuration fields are checked by expected type. Each packageRules entry is inspected for at least one matcher and one action, while obvious deprecated keys produce warnings.

A local structural pass is useful before committing, but only Renovate itself can validate every preset, manager, datasource, and hosted-platform interaction.

Example

Try the sample input built into the page. The result uses the same validation and export path as pasted content.

{"extends":["config:recommended"],"schedule":["before 6am on monday"],"packageRules":[{"matchUpdateTypes":["minor","patch"],"groupName":"non-major updates"}]}

Use cases

  • Prepare repository configuration during project setup.
  • Review a proposed change before opening a pull request.
  • Turn issue or workflow data into a consistent, copy-ready artifact.

Tips for reliable output

  • Start with the sample to confirm the expected shape.
  • Keep repository names, paths, and owner handles exact.
  • Read warnings even when output is generated.
  • Commit configuration changes in a separate pull request when practical.
  • Test critical automation on a non-production branch first.

Processing details

The validator accepts strict JSON. It reports unknown top-level fields as review items rather than errors because Renovate adds options over time.

Remote presets are not fetched, and regex manager patterns are not executed against repository files.

Frequently asked questions

What input does the Renovate Config Validator accept?

Use the format shown in the sample. The page validates required fields and reports malformed lines or values before producing output.

Does the Renovate Config Validator contact GitHub or another server?

No. Processing happens in your browser and the core function makes no network request.

Can I use the generated output in a repository?

Yes, after reviewing repository-specific names, permissions, paths, and policies that a browser-only tool cannot verify.

Why might GitHub interpret the result differently?

Hosted services may apply repository context, current platform rules, presets, or permissions that are unavailable to this local check.

Can the Renovate Config Validator process Unicode text?

Yes. The input and downloaded files use UTF-8, although the target format may impose narrower naming or syntax rules.

Output reference

ItemMeaning
OutputCopy-ready JSON or text
ProcessingLocal browser execution
NetworkNot required

Git & Repository Tools

Browse generators, parsers, validators, and helpers for Git configuration and repository workflows.

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