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The CakePHP framework
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Latest release 1.19.3 - Updated - 10K stars
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formik
Build forms in React, without the tears
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vuelidate
Simple, lightweight model-based validation for Vue.js
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Thin assertion library for input validation in business models.
Latest release v3.3.0 - Updated - 2.07K stars
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Featureful configuration management library for Node.js (nested structure, schema validation, etc.)
Latest release 6.0.0 - Updated - 1.59K stars
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