- What is Port Scanner?
- Online port scanner that checks the open status of common ports (80, 443, 22, 3306, etc.) on an IP or domain to diagnose network connectivity issues. Available on ToolNext — the free online toolbox. This tool is part of the Dev Tools collection on ToolNext.
- How do I use Port Scanner?
- Open this tool and paste or type your data into the input area. Click the action button to process your data. Results update in real time as you modify the input.
- Does Port Scanner work with standard JSON and common dev formats?
- Absolutely – you can paste JSON, SQL, or raw data directly into the panel. Port Scanner instantly formats and highlights it, so you can copy the output without ever leaving your browser.
- Why pick an online Port Scanner over a desktop plugin or IDE extension?
- Convenience is the main reason. Port Scanner needs no installation, runs on any device with a browser, and your data stays local. You can access it from macOS, Windows, or even a borrowed machine.
- Is Port Scanner free to use?
- Yes, Port Scanner is completely free. ToolNext offers all tools and games at no cost, with no ads or registration required — just open and use.
- Do I need to sign up for {name}?
- No account or login is needed. ToolNext is designed to be instantly usable. Simply visit the page and start working.
- Is my data safe when using Port Scanner?
- All processing happens locally in your browser for Port Scanner. Your data is never uploaded to any server, so it remains private and secure.
- Does Port Scanner work on mobile phones?
- Absolutely. Port Scanner works on both desktop and mobile browsers. Touch controls and responsive design ensure a smooth experience on any screen size.
