Get the best out of TypeScript even when you're not using TypeScript! This talk explores techniques and tools that bring the benefits of type safety to your JavaScript codebase without adopting TypeScript formally. Discover how to catch bugs early, enhance code readability, and leverage the advantages of static typing, all while staying within the familiar JavaScript ecosystem. Whether you're a TypeScript or a JavaScript enthusiast, this session offers practical insights and tools to enhance your development workflow and code quality.