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TCP and UDP Ports

WellKnownPorts is a free reference for commonly used TCP and UDP ports and provides a compact search by port number as well as full-text search across services to support the rapid classification of open ports during security assessments, penetration tests, and architecture reviews. Including the theoretical port 65536, even though both IANA and mathematics would disagree.

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Penetration Testing
Tools

On binsec.tools, you’ll find free online tools for penetration testing – the same ones used by the binsec group in real-world pentests. The publicly available tools are primarily designed to gather information and enrich it with additional data. Check them out!

Penetration Testing

Since 2013 we conduct professional penetration test, based on international industry standards and years of experience in penetration testing, red teaming and hacking.

As a company for professional penetration testing, we do some things differently than other pentest provider: As a penetration test firm, we do not sell vulnerability scans as pentest. We do also focus on business security risks. You are looking for a professionally conducted penetration tests? Get the binsec team for your Pentest. Read more about our pentest service.

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Pentest Knowledge and Tools

Free pentest tools for your security analysis.

Pentest Tools

Take a look at our wiki page about pentesting.

Pentest WIKI

Straight answers to common pentesting questions.

Pentest FAQ

News about pentesting and the binsec universe.

Pentest News

Company

binsec GmbH
Clemensstraße 6-8
60487 Frankfurt am Main
Germany

Legal notice

Director: Patrick Sauer
Authorised Officer: Florian Zavatzki, Dominik Sauer
Registration: Frankfurt am Main, HRB97277
Turnover Tax Identification No.: DE290966808

© 2026 All rights reserved by binsec GmbH.

© 2026 All rights reserved by binsec GmbH.