Normalize MAC addresses into Colon, Hyphen, Cisco Dot, and Raw Hex formats.
Execution runs 100% locally inside the browser sandbox using HTML5 Canvas, Web Cryptography Subtle API, and Web Workers. Zero egress.
Zero network latency. Operates completely offline with zero dependencies on third-party backend servers or cloud services.
Built according to official RFC specifications, cryptographic test vectors, and enterprise-grade data transformation standards.
Type or paste a MAC in any format.
Inspect Colon, Hyphen, Cisco Dot, and Hex representations.
Copy desired format for networking equipment or firewalls.
Cisco uses three groups of four hexadecimal digits separated by dots (e.g. 001a.2b3c.4d5e).
Yes, standard EUI-48 MAC addresses consist of 6 bytes (12 hex digits).
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