Free IP Subnet Calculator
Berechnen Sie IP-Subnetze, Maske, Host-Bereich und Broadcast-Adresse.
Frequently Asked Questions
Is the Subnetz-Rechner free to use?
Yes, the Subnetz-Rechner on Allio Tools is completely free with no sign-up or registration required. It works directly in your browser.
How does the Subnetz-Rechner work?
Berechnen Sie IP-Subnetze, Maske, Host-Bereich und Broadcast-Adresse. No data is sent to a server — everything runs locally in your browser for maximum privacy and speed.
Do I need to install anything to use the Subnetz-Rechner?
No installation needed. The Subnetz-Rechner runs entirely in your web browser on any device — desktop, tablet, or mobile.
Is my data safe when using the Subnetz-Rechner?
Completely safe. The Subnetz-Rechner processes everything locally in your browser. No input data, results, or usage information is ever transmitted to or stored on any server.
Does the Subnetz-Rechner work offline?
After the page loads for the first time, the Subnetz-Rechner works without an internet connection for all client-side processing. Tools that fetch live external data (such as DNS or WHOIS lookups) require an active connection.
How current is the data returned by the Subnetz-Rechner?
The Subnetz-Rechner fetches live data in real time each time you run it. Results reflect the current state of the server or domain at the moment of the request.