Port Reference
Search common TCP and UDP ports with service names, protocols, categories, and IANA status
Search & Filter
108 of 108 ports
About this tool
Search 100+ common TCP and UDP ports with service names and IANA status. Free offline reference — no signup. Port Reference runs in the browser on DevTools. There is no signup, and your input stays on this device unless the tool explicitly performs a live network lookup.
What this tool does not do
- Port Reference is a free in-browser utility, not a hosted API. It does not keep server-side history and is not a substitute for production verification in your own stack.
How do I use this tool?
How do I use Port Reference?
Open Port Reference, enter or paste your input, and copy the result. The page works without an account.
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