webidl-conversions is a JavaScript library providing robust conversion algorithms for WebIDL types. Crucial for browser environments and tools interacting with Web APIs, it ensures data conformity and prevents common type-related errors. It handles conversions like strings, numbers, and booleans, aligning JavaScript’s dynamic typing with the stricter type expectations of WebIDL specifications. By implementing these conversions, it streamlines interoperability between JavaScript code and Web APIs or environments requiring WebIDL adherence.