Generates random MAC addresses in six common formats with optional OUI prefix. Supports Unix, Windows, Cisco, and dot-separated styles. Everything runs locally in your browser — nothing is uploaded.
Encrypts a text note with a passphrase and generates a shareable link with the encrypted note in the URL fragment — the fragment is never sent to any server. Everything runs locally in your browser.
Generates RSA (2048/4096) or ECDSA (Curve25519) PGP key pairs with customizable user IDs, expiration dates, and passphrase protection. Everything runs locally in your browser — nothing is uploaded.
Anonymize IP addresses in log files by masking octets while preserving network structure for analysis.
Generates random integers or decimals within a user-defined min-max range with optional repetition filtering. Uses the browser random number generator — fine for games, raffles, and sampling, not for security secrets. Everything runs locally in your browser — nothing is uploaded.
Look up device manufacturer from MAC address OUI prefix.
MAC Address Generator lets you generates random MAC addresses in six common formats with optional OUI prefix. Supports Unix, Windows, Cisco, and dot-separated styles. Everything runs locally in your browser — nothing is uploaded.. It works on any device with a modern web browser.
Generates random MAC addresses in six common formats with optional OUI prefix. Supports Unix, Windows, Cisco, and dot-separated styles. Everything runs locally in your browser — nothing is uploaded. It runs entirely in your browser — no software installation or data uploads required.
Paste or type your content directly into the provided text area.
Yes. After the initial page load, MAC Address Generator runs entirely on your device with no internet connection needed. All processing is done locally.
Generates random MAC addresses in six common formats with optional OUI prefix. Supports Unix, Windows, Cisco, and dot-separated styles. All operations run locally — no data ever leaves your browser.
Yes. Everything happens in your browser. No data is transmitted to any server, and nothing is stored.
Encryption uses industry-standard AES (crypto-js) and OpenPGP.js. Key derivation uses PBKDF2 with configurable iterations.
Nothing — your data was never stored anywhere. It exists only in your browser's active memory while the page is open.