Generate random MAC addresses for labs and testing — pure random hex, no OUI or unicast-bit management. Fill virtual networks credibly — local generation, free, no signup.
Content reviewed October 2026 · About Toolzum
Anonymize a single IP address — mask octets or hash for analytics. Share logs without exposing users — local processing, free, no signup.
Generate a free disposable email address (temp mail / throwaway email) that receives mail for 60 minutes. Inbound only — you cannot send or reply. Perfect for signups you don’t trust, confirmation codes, and keeping your real inbox spam-free.
Scan and clear cookies, localStorage, and sessionStorage for the current site — see what's stored first. Audit privacy trackers before wiping — local inspection, free, no signup.
Generate random tokens in hex, base64, or alphanumeric formats for secrets and sessions. Hex and base64 draw from Web Crypto (alphanumeric uses Math.random — see format notes). The API-key preset mints 64-char secrets in one click — local generation, free, no signup.
Generate realistic fake datasets — users, orders, addresses — for demos and load tests. Fill staging with 10k believable rows — local generation, free, no signup.
No bit management here — the tool fills random hex over your prefix (padded to 12 hex digits), so multicast/local bits are whatever chance gives. Default OUI prefix is 00:50:56 (VMware); quantity comes in 5, 10, or 20 with colon, hyphen, or no delimiter.
Lab and own-network testing fine; impersonating others to bypass controls violates policy and often law. Test your own gear.
Colon, hyphen, or bare formats with an uppercase toggle — no Cisco dot format. Case options match vendor conventions.
No — generation runs locally in your browser. Nothing leaves your device.