What is the Common Ports Reference?
Well-known TCP/UDP port numbers and services. The Common Ports Reference is a free online tool that works instantly in your browser — no installation, no signup and nothing to upload. It sits alongside other Reference tools on DevNibble such as HTTP Headers Reference, HTTP Methods Reference, Git Commands Cheatsheet.
How to use the Common Ports Reference
- Paste or type your input.
- The result appears instantly.
- Copy or download it.
Features
- Runs 100% in your browser — your data is never uploaded or stored.
- Free forever, with no account, no ads and no tracking.
- Copy or download your result in one click.
- Fast and responsive on desktop, tablet and mobile.
Frequently asked questions
Is the Common Ports Reference free to use?
Yes — Common Ports Reference is completely free with no sign-up, no ads and no limit on how many times you can use it.
Is my data private when I use the Common Ports Reference?
Everything happens locally in your browser. Your input is never sent to a server, which makes Common Ports Reference safe to use with private or sensitive data.
How do I use the Common Ports Reference?
Browse the table or type in the search box to filter it down to exactly what you need.
Is this reference kept up to date?
Common Ports Reference bundles a curated, commonly-used reference set that loads instantly offline. Well-known TCP/UDP port numbers and services.