ZoneAlarm Free Firewall 2019

Protect your PC with the world’s best firewall solution

Windows Free Download
Windows 10/8/7
Block unwanted traffic
Become invisible to hackers
Control program access to the internet
Guard your personal data

Free, Light and Powerful

Our personal firewall manages and monitors all incoming and outgoing traffic and shields you from hackers, malware and other online threats that put your privacy at risk.

Free Firewall
"ZoneAlarm remains an Editor’s Choice for firewall protection. It does what it’s meant to, and adds some dandy bonuses"
PC Mag, 2016

Get a Closer Look at What’s Inside

We care about your security, here’s how we protect you

Personal Firewall

We monitor programs for suspicious behaviors while spotting and stopping internet attacks. Our firewall protects you from malicious programs and allows you to make yourself invisible to hackers by using Full Stealth Mode.

Identity Protection Services

We assist in preventing identity theft by guarding your personal data from hackers. We provide you with daily credit monitoring, in addition to providing you with victim recovery assistance (US only).

Additional Layers

Multiple layers of advanced protection provides you with unsurpassed security

Public Network Protection

If you connect to an unsecure network, our wireless PC protection will shield you from hackers and online threats

Wireless Network Protection

Ensure you’re protected with our automatic wireless network security to ensure you have the highest firewall protection setting

Real-Time Security Updates

Get the quickest response to online threats with our real-time DefenseNet security updates that ensure you're always protected

ZoneAlarm Firewall
For advanced Firewall features and even better protection, get ZoneAlarm Pro Firewall 2019.

Compatibility Requirements

System Requirements
Compatibility Requirements
Microsoft® Windows® 7 SP1, 8, 8.1, 10 (All versions)
  • 32 or 64-bit, 2 GB RAM
  • 2 GHz or faster processor
  • 1.5GB of available hard-disk space
Microsoft .NET framework
  • Version 3.5 or later
  • Note: If a supported Microsoft .NET Framework is not installed, it will be installed with ZoneAlarm 2019

ZoneAlarm Free Firewall 2019 is compatible with MS Windows Defender, and is also compatible with all other antivirus solutions.

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