🔍 Port Scanner
Scan common ports on any hostname or IP address. Detects open, closed, or filtered ports — all from your browser.
⚠️ This tool uses WebSockets to test port connectivity. Firewalls may block some ports. Scans are performed from your browser – no data sent to external servers. Rate limited to avoid overwhelming targets.
Ready
| Port | Service | Status | Details |
|---|---|---|---|
| Enter a host and click Start Scan. | |||
📖 How to Use the Port Scanner (Step by Step)
- Step 1: Enter a hostname (e.g., scanme.nmap.org) or IP address.
- Step 2: Choose a preset port list or select "Custom" to enter your own ports (comma-separated).
- Step 3: Click “Start Scan” – the tool will sequentially test each port using WebSocket connections.
- Step 4: Results update in real time: 🟢 Open, 🔴 Closed, 🟡 Filtered/Timeout.
- Step 5: Use the information for network diagnostics or security analysis.
💡 How It Works
- ✔️ Tests ports using WebSocket (ws:// and wss://) with a short timeout.
- ✔️ Open port = successful connection, closed = immediate error, filtered = timeout.
- ✔️ 100% client‑side – no data sent to external servers. Your privacy is protected.
- ✔️ Sequential scanning prevents overwhelming the target or browser.
📢 Share this port scanner with network admins and developers – it's free and private!
🔒 100% client‑side • Your scans never leave your browser • Real‑time results • Zero tracking