TypeScript Type Stripper

The TypeScript Type Stripper is a utility that removes type annotations and type-specific syntax from TypeScript code, leaving you with clean, executable JavaScript. TypeScript adds powerful static type-checking to JavaScript development, but sometimes you need to convert TypeScript files back to plain JavaScript—whether you're migrating to a project without TypeScript support, reducing bundle size by removing type definitions, or simply sharing code with developers who prefer JavaScript. This tool handles that conversion instantly in your browser without needing any build tools or command-line setup.

To use the tool, paste your TypeScript code into the input area and the stripper will automatically remove all type annotations (like `: string`, `: number`, `: MyInterface`), generic brackets (`<T>`), abstract keywords, and access modifiers (`public`, `private`, `protected`). The resulting JavaScript is immediately available for copy-paste use. This works for any valid TypeScript code—functions, classes, React components, utility libraries—and produces standard JavaScript that runs in any environment.

The tool is particularly valuable for open-source library maintainers who want to publish both TypeScript and JavaScript versions, developers working on legacy JavaScript projects that are gradually adopting TypeScript, and educators demonstrating the difference between TypeScript source and compiled output. Keep in mind that while the tool removes type syntax, it does not transform TypeScript-specific features like decorators or namespaces into their JavaScript equivalents—complex transformations of that kind are best handled by the TypeScript compiler itself.