Security
Portmaster
2.2.1 · Windows
Portmaster is a system firewall with the function of monitoring network traffic, blocking ads, trackers and controlling application access to the Internet. It allows you to add your own rules and block domains.
- Version
- 2.2.1
- Platform
- Windows 10/11
- Licence
- Freeware
- File size
- 6.5MB
- Version information updated
- 2026-06-12
- Manufacturer
- Safing ICS Technologies GmbH
Questions about downloads
Where does the download come from?
The download button opens the external file address listed on this page. NetCloud24 provides the catalogue and does not modify installers.
Does downloading include a software licence?
Downloading an installer and purchasing a licence are separate actions. Free software follows its publisher’s licence; commercial software may require activation or a subscription.