Port Checker

Check if common ports are open on a host. Due to browser limitations, this works best with HTTP/HTTPS ports.

Note: Browser security restrictions prevent direct TCP port scanning. For accurate results, use command-line tools like nmap or online port scanning services.
Browse All Tools ›
Network Tools
What Is My IP Popular

Find your IP address
Network Tools
Redirect Checker

Trace URL redirects
Network Tools
Subnet Calculator

Calculate subnets
Network Tools
SSL Checker

Check SSL certificates
Developer Tools
UUID Generator

Generate random UUIDs (v4)
Media Tools
YouTube to MP3 (WASM) New

In-browser variant: Pyodide + yt-dlp + ffmpeg.wasm, server only relays bytes