Port Service Lookup

Overview

Port Service Lookup is a network tool that Port lookup tool: enter port number to quickly find common services and protocols like HTTP, SSH, FTP for networking and ops, with one-click copy and offline. It runs 100% in your browser with no upload, so you get instant results with privacy. Whether you need a quick answer or batch processing with precise control, you can enter, validate and export in seconds. The UI is responsive on mobile, tablet and desktop and supports one-click copy.

Use cases

• Parse URL/headers/status
• Latency assessment
• Subnet and host count planning
• Port/DNS self-check
• Use it to cross-check “端口查询、端口服务” in reports, docs or APIs to avoid manual conversion errors

How to use

1. 1 Enter IP/domain/URL
2. 2 Choose subnet/parse/check action
3. 3 Review tables and steps
4. 4 Copy/export

Highlights

• Local & private: processing stays in your browser
• Live validation with tolerant parsing
• One-click copy and export for docs, code or sheets
• Batch and offline support under poor network

Notes

• DNS cached results may differ
• Network and broadcast addresses not assignable
• Port checks are indicative

FAQ