free firewall software

Free firewall software enables you to prevent your computer system from an unauthorized access coming through the internet or network. For more clarification, here is a definition from Windows Help and Support, “A firewall is software or hardware that checks information coming from the Internet or a network, and then either blocks it or allows it to pass through to your computer, depending on your firewall settings.”

As soon as your computer is connected to the internet or a network, your system and the resources will be vulnerable for intrusions and attacks. In order to guard your system and network from these attacks, you need to install good firewall software. In fact, Windows has strong firewall program built-in with all its Operating systems which are capable of doing all these. However, if you still want more flexible free firewall software with additional features and control, you may install third-party firewall. In doing this you will have additional layer of system protection.

Here are the best free firewall programs available on the net…

Comodo Firewall Free

Comodo Firewall free is one of the best full-featured free firewall software comes with basic firewall protection. The software is the most downloaded at CNET and award winning firewall program that protect your system from viruses, malware, and hackers.

Main features of Comodo Firewall

  • Blocks all internet access attacks and secure all connections when online
  • Monitor in and out connections
  • Support Default Deny Protection technology (a feature that makes comodo unique)
  • Support advanced security suit active HIPS, called as “Defense+”
  • Support Memory firewall
  • Support prevention-based security to stop viruses and malware
  • Support auto Sandbox technology that allows browsing and computing without risk
  • Support automatic updates for the most current protection
  • Has user friendly interface and more

Compatibility: Windows XP SP2, Vista, Windows 7 and 8 (support 32 and 64-bits)

Website: Comodo Firewall

ZoneAlarm Free Firewall 2013

ZoneAlarm firewall is one of the first and the most widely used free firewall program built is with basic and advanced protection tools. This 5 star award winning software provides protection against hackers and spyware. The company provides three versions: Internet Security Suite, Pro Firewall and Free Firewall. The free version is available for individual and non-profit charitable entity use.

Main features of ZoneAlarm Free Firewall

  • Blocks hackers and prevent your system from stealing viruses and spyware
  • Support Two-way Firewall (Inbound and Outbound) defense
  • Support stealth mode and anti-phishing protection
  • Provide site check, Facebook privacy scan, private browsing, do not track and more
  • Provide advanced download protection which enables to analyze downloads and warns if the data is malicious
  • Support identity theft protection which helps to keep credit and financial identity safe
  • Monitor applications, spot suspicious behavior and stop new attacks
  • Provide online Backup (free up to 5GB)
  • Works with other anti-virus programs effectively
  • Quick installation process and easy interface

Compatibility: Windows XP SP2 or SP3, Vista, Windows 7 and 8 (support 32 and 64-bits)

Website: ZoneAlarm Free Firewall

Ashampoo Firewall Free

Ashampoo firewall free is a firewall program capable of protecting your PC from attacks that come through internet. Other than solid firewall protection ability, this free firewall software enables you to identify and stop suspicious activities inside your computer. The weak side of this software is that it doesn’t run on Vista, Windows 7 and 8. Hope they will make it soon.

Key features of Ashampoo Firewall

  • Monitors all computer’s network activity and prevent against incoming and outgoing connections
  • Monitor Local and LAN connections
  • Automatically identifies programs that try to connect and lets you decide
  • Includes Expert mode which enables experienced users to unlock additional capabilities
  • Support creating rules for program how they can connect the network
  • Support One-Click panic button that lets you block all traffic
  • Consumes little memory and PC resources
  • Create detailed connection logs about all internal, LAN and internet connections such as Date, time, application, port used and IP address
  • Simple setup and Easy Mode installation

Compatibility: Windows 2000 SP4, XP SP2

Website: Ashampoo Firewall


TinyWall is small, lightweight, non-intrusive and free firewall software. The software works like other similar firewall programs, but TinyWall is lightweight and does not require knowledge about ports, protocols and application details. Please Note that TinyWall will block most communications after installation, you need to unblock the programs using Whitelist options in the tray menu.

Key features TinyWall

  • Blocks several types of Trojans, viruses and worms
  • Support firewall tampering protection
  • Allow or restrict communication and applications within LAN
  • Has setting for password lockdown
  • Has different modes (automatic learning mode, quick modes, block all, allow all)
  • Support port and domain blocklists
  • View open ports on your computer
  • List blocked and allowed connections
  • Multilanguage support

Compatibility: Windows Vista, Windows 7 and 8 (support 32 and 64bits)

Website: TinyWall firewall

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