Scan common ports on a host to identify open services and running applications from your browser.
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More about the Port Scanner
A specific open port on a server reveals a specific running service, 22 for SSH, 80 or 443 for a web server, 3306 for a database, which makes scanning a host's common ports a genuinely useful first check before deploying anything, especially to confirm a database port hasn't been left exposed to the open internet by mistake. This tool scans common ports on a host directly from the browser, identifying which services and applications are actually running and reachable rather than assuming based on configuration alone. Useful for confirming a database port isn't accidentally exposed to the public internet before deploying, auditing a server's open ports as a basic security check, or diagnosing why a specific service seems unreachable by confirming whether its port is actually open at all.
Scan common ports on a host to identify open services and running applications from your browser. The Port Scanner is one of 900+ free developer tools on Toolblip - all open to use without a signup.
How do I use the Port Scanner?
Open the Port Scanner on this page, paste or upload your input, and the result updates as you type. Use the copy button to grab the output, or adjust options to tune the result. Nothing you enter leaves your browser.
Is the Port Scanner free to use?
Yes. The Port Scanner is a free online tool on Toolblip - no signup, no account, no hidden usage limits. It runs in your browser and works on desktop and mobile.
Is the Port Scanner safe and private?
Yes. The Port Scanner processes your data entirely client-side, so nothing you paste is uploaded or stored on any server. It's safe to use with internal snippets, private keys for debugging, or any other sensitive content you'd rather not send to a remote service.
What kind of output does the Port Scanner produce?
The Port Scanner produces clean, formatted output that you can copy or download with a single click. The output is tailored to the tool's purpose — formatted code, converted data, transformed text, or processed media — and is ready for immediate use in your project or workflow.
Does the Port Scanner work on mobile devices?
Yes. The Port Scanner is designed to work on any device with a modern browser, including phones and tablets. The interface adapts to smaller screens, and the core functionality — paste input, transform, copy output — works the same way regardless of your device.
Do I need to install anything to use the Port Scanner?
No. The Port Scanner runs entirely in your browser - no downloads, no accounts, no API keys. Paste your input, get the output, copy it back into your editor.
Can the Port Scanner handle large input files or long text?
Yes. The Port Scanner processes everything locally in your browser, so the only limit is your device's available memory. There are no arbitrary caps on input size, character count, or processing time that you would typically encounter with server-based tools.
Can I use the Port Scanner offline?
Once the page has loaded, the Port Scanner continues to work without an internet connection. Bookmark this page and return to it anytime - all logic runs locally.