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Free tool · API spec linter

Lint an OpenAPI spec without uploading it anywhere.

Drop in an OpenAPI JSON document and Pentrova runs a sample lint rule set in your browser, flagging missing security schemes, empty path maps, and other early signals. Your file never leaves the page.

Your file never leaves the browser. YAML support is coming soon.

How the check works

  • Rule-by-rule lint

    A small, deterministic rule set checks for the version string, required info block, populated paths, and declared security schemes. More rules land in each release.

  • Browser-only

    The spec is parsed and linted in your browser. Pentrova never sees the file contents. YAML support is coming in a follow-up release; JSON works today.

  • No persistence

    Nothing is logged, cached, or shared. Refresh the page and the spec is gone.

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