Which OpenAPI Codegen Should You Choose? openapi-typescript vs hey-api vs Orval vs Kubb
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Score Breakdown
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novelty 6
actionability 9
community 5
strategic 3
personal 9
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Comprehensive comparison of OpenAPI codegen tools, very actionable
Summary
For large OpenAPI schemas (75k lines, 1200 operations), codegen tool choice impacts generation speed, file count, and maintainability. openapi-typescript excels for types-only, while @hey-api/openapi-ts offers operationId-based SDK with result-style errors and interceptors. Orval generates ecosystem artifacts (TanStack Query, Zod, MSW), and Kubb produces one file per operation via plugin architecture—with hey-api being the most practical for real-world scale.