Quickly look up common TCP and UDP port numbers with this searchable, categorized reference table — ideal for creating firewall rules, managing network ACLs, or verifying service configurations. Whether you’re in a data center or troubleshooting remote access, this tool gives you what you need without the clutter.

Built for IT professionals, sysadmins, and security teams, this lightweight tool is entirely static HTML — no backend, no lag, no tracking. Use it in the field, during change control sessions, or when helping junior techs figure out what port 1433 is actually for.

• Searchable Table: Quickly find the port you’re looking for by number, protocol, or service name
• TCP and UDP: Covers the most common ports used across modern IT environments
• Built-In Reference: Great for firewall planning, config documentation, and training
• All Local: Static HTML with no dependencies — loads instantly, works offline
• Useful For: Network engineers, SOC teams, sysadmins, and tech leads

Bookmark this as your go-to cheat sheet for port info — it’s cleaner and faster than sifting through Wikipedia or IANA docs during crunch time.