Scan common ports on any IP address. Check if services are running and accessible — useful for network diagnostics.
Click Start Test. For the most accurate results, close other tabs and pause downloads and streams.
The test measures download speed first, then upload speed. This takes about 10-20 seconds total.
See your download and upload speeds in Mbps. Ping (latency) is measured in milliseconds. Compare results across different times of day.
Run multiple tests at different times to get an accurate picture. Network speeds vary based on server load and time of day.
The Port Scanner is part of LaiUse's growing collection of network tools, ip lookup, dns, whois, ssl checker. Like every tool on LaiUse, it runs entirely in your browser — meaning your data, files, and inputs stay on your device throughout the entire process.
LaiUse offers Network tools alongside speed test, dns lookup, ipv4 calculator. The entire platform is free to use with no signup required, making it a popular choice for developers, designers, and everyday users who need a quick tool without the overhead of a SaaS subscription.
Whether you need the port scanner for a one-off task or as part of your regular workflow, LaiUse is designed to be fast, reliable, and private. Bookmark this page to come back anytime, or explore the rest of the Network category for related tools.
Yes. LaiUse is free to use without an account. Most tools have no limits and run entirely in your browser. AI and server-side tools require a Pro subscription.
No. All free tools work without an account. You can sign up to earn rewards, request new tools, and access Pro features.
Yes. Browser-based tools process everything locally on your device — your files and data never leave your computer. Server-side tools are clearly marked.