Babel Plugin to Remove React PropTypes

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library 0.4.24 ·javascript
verified May 27, 2026

This Babel plugin, currently at version `0.4.24`, is designed to optimize React applications by effectively removing `propTypes` definitions from the production build. `propTypes` are primarily utilized for development-time type checking and debugging, and thus represent unnecessary overhead in production bundles, contributing to larger file sizes and increased load times. The plugin offers distinct `mode` options: `remove` (the default for most applications), `wrap`, and `unsafe-wrap`. The `wrap` and `unsafe-wrap` modes are specifically tailored for React library authors, enabling them to retain some `propTypes` behavior in development while ensuring optimization for production scenarios. The `remove` mode is generally recommended for direct application authors seeking maximum bundle size reduction. The project exhibits a consistent, albeit at times gradual, release cadence, with recent patches focusing on improved type checking logic, custom `createReactClass` function support, and more robust handling of unused identifier removal. It integrates seamlessly into the Babel ecosystem, typically configured via standard Babel configuration files such as `.babelrc` or `babel.config.js`.

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