OpenAPI NormalizerPostman Collections → Clean OpenAPI 3.x

Convert Postman Collections and normalize bloated Postman-exported specs into clean, standard-compliant OpenAPI — ready for Swagger UI, Redocly, Stoplight, and any API client generator.

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Convert Postman Collections

Turn any Postman Collection (v2.0/v2.1) into an OpenAPI 3.0.3 document with correlated request/response examples — something Postman's own export never does.

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Normalize Exported Specs

Strip noisy headers, collapse redundant examples, infer and merge schemas from example values, and reduce file size by 60%+ on typical Postman exports.

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Git-Versioned API Workflow

Commit your Postman Collection to git, run a single script to generate a normalized OpenAPI spec, and feed it into any code generator for web, mobile, or desktop clients.

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CLI & Programmatic API

Use from the command line or import as a library in any Node.js project. Chain convert + normalize in one pipeline.

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TypeScript-first, Zero Dependencies

Full type definitions for OpenAPI and Postman types. Dual CJS/ESM package with absolutely no runtime dependencies.