Network

4 tools

Peer-to-Peer File Transfer (LAN and Internet)

Send files straight from one browser to another over WebRTC. The file travels peer to peer instead of through a server, and the two sides pair up with a short code.

DNS Record Lookup Command Builder

Pick a DNS record type and domain to generate dig/nslookup/host commands and online lookup links in one click, plus a 16-type DNS record reference table — the tool itself performs no live DNS lookups.

MAC Address Vendor Lookup

Look up the manufacturer behind a MAC address using the IEEE OUI database. Accepts colon, hyphen, and unseparated formats, supports batch lookups, and distinguishes local from globally unique addresses.

Random Port Number Generator

Generate random port numbers from the well-known, registered, dynamic, or a custom range. Produces multiple deduplicated ports at once and flags commonly occupied ports so you avoid conflicts.