Web Crypto API — Hash Anything in the Browser Without npm Packages

Stop Installing crypto-js Every browser has a built-in cryptography API. You don't need crypto-js , js-sha256 , or any npm package for basic hashing. The Web Crypto API async function hash ( text , algorithm = ' SHA-256 ' ) { const encoder = new TextEncoder (); const data = encoder . encode ( text ); const hashBuffer = await crypto . subtle . digest ( algorithm , data ); const hashArray = Array . from ( new Uint8Array ( hashBuffer )); return hashArray . map ( b => b . toString ( 16 ). padStart ( 2 , ' 0 ' )). join ( '' ); } // Usage await hash ( ' hello world ' ); // SHA-256 await hash ( ' hello world ' , ' SHA-1 ' ); // SHA-1 await hash ( ' hello world ' , ' SHA-384 ' ); // SHA-384 await hash ( ' hello world ' , ' SHA-512 ' ); // SHA-512 Supported Algorithms Algorithm Output Length Use Case SHA-1 40 chars Legacy, git commits SHA-256 64 chars General purpose SHA-384 96 chars TLS SHA-512 128 chars High security Note: MD5 is NOT supported by Web Crypto API (it's considered broken). If yo