**chai‑bytes** adds a `equalBytes` assertion to Chai that lets you compare `Uint8Array` (or other byte‑array) values against hex strings, arrays, or array‑like objects. It’s useful for developers who need precise binary‑data testing (e.g., networking, cryptography, file parsing) within JavaScript test suites. The library targets anyone already using Chai for assertions and wants a simple, standards‑compliant way to verify byte‑array equality.