About this utility
How to use MAC Address Formatter & Inspector
Validate and normalize EUI-48 or EUI-64 addresses and inspect their administration and transmission bits.
What to provide
Paste colon, hyphen, Cisco-dot, or plain hexadecimal notation. Whitespace around the value is ignored.
- Paste, type, or drag and drop a supported text file into the input area.
- Review the input and the clearly labeled output behavior.
- Select “Run tool” or press Ctrl/Command + Enter, then copy, download, or move the result back into the first input for another pass.
What the result means
Canonical colon, hyphen, Cisco-dot, and plain forms plus bit-level address properties.
Privacy and safety
This utility is loaded as browser code and processes your input only in this tab. OmniCastConverter has no upload endpoint and never stores your content, filenames, tokens, or secrets. Generated markup and code are shown as inert text and are never executed.
Limitations
- Vendor ownership is not resolved because a current OUI registry would require bundled updates or a network request. EUI-64 derivation is informational and may not match operating-system privacy addressing.
Try the included example
Select “Load example” at any time to restore this tested sample.
02-42-ac-11-00-02