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babel-plugin-spectypes

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library 2.1.11 ·javascript
verified Jun 17, 2026

Babel plugin (v2.1.11) that compiles spectypes validators at build time, producing fast, eval-free runtime validation for TypeScript/JavaScript. Current stable version is 2.1.11 with bi-monthly releases. Key differentiators: compiles validators into simple if/else statements (no eval or new Function), can outperform ajv in benchmarks, detailed error messages with failure paths, TypeScript type inference, and extensive property-based testing. Requires @babel/core as a peer dependency and spectypes runtime package.

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