What does this tool do?
This port reference lists the most commonly used TCP and UDP ports alongside their service name, protocol, and description in a searchable table. It's a handy lookup tool for system administrators, developers, and cybersecurity students who need to quickly find which service runs on which port.
How to use it
- Enter an address, domain or value.
- View the results instantly.
- Copy the details you need.
Find any port from one search box
The list covers dozens of common ports ranging from 20 to 27018: FTP (21), SSH (22), HTTP (80), HTTPS (443), RDP (3389), MySQL (3306), PostgreSQL (5432), Redis (6379), MongoDB (27017), and more. Type a port number, a service name (such as 'redis'), a protocol ('UDP'), or any word from the description into the search box to filter instantly. A Copy button next to each row places the port number on your clipboard.
Well-known, registered, and dynamic ports
Ports fall into three ranges: 0-1023 well-known (standard services like HTTP and SSH), 1024-49151 registered (applications such as MySQL and MongoDB), and 49152-65535 dynamic or ephemeral ports. This tool focuses on the ports you meet most often in daily work, letting you confirm which service owns a port in seconds while writing a firewall rule, configuring a server, or troubleshooting a connection.
Frequently asked questions
What does a TCP/UDP label mean?
Some services, like DNS (53) and NFS (2049), can operate over both TCP and UDP. The TCP/UDP label means that service uses both protocols on the same port number.
Why are dev ports like 3000 or 8080 in the list?
Although these are not official IANA assignments, they are very common in development environments such as Node.js, Django, Tomcat, and proxy tools, so they're included for everyday reference.
Does the list include all 65,535 ports?
No. The tool focuses on the most common ports you actually encounter in daily administration and development, so you can find what you need quickly without scrolling through a huge list.
Is Port Reference free?
Yes. Port Reference and all 300+ tools on MagmaNex are completely free with no signup or account required.
Is my data safe?
Yes. Everything runs locally in your browser. The data you enter is never sent to a server, stored, or shared.
Does it work on mobile?
Yes. Port Reference works on phones, tablets and desktops — no app download needed.
🔒 Privacy: everything runs in your browser, your data is never sent to a server.