Compare the Top Free Network Security Software as of June 2025

What is Free Network Security Software?

Network security software is a type of software that helps protect computers, networks, and data from malicious attacks and unauthorized access. It is typically used by businesses to protect their confidential information and keep systems safe. It can also be used by individuals to protect their personal information and devices from potential threats. Compare and read user reviews of the best Free Network Security software currently available using the table below. This list is updated regularly.

  • 1
    GlassWire

    GlassWire

    GlassWire

    Instantly see who or what your PC is talking to on GlassWire's network monitoring graph, plus see what your PC may have connected to in the past. Detect spyware, malware, badly behaving apps, and bandwidth hogs, then block their connections. Monitor other PCs on your network and get alerted when new unknown devices join your WiFi. GlassWire warns you of network related changes to your PC, or unusual changes to your apps that could indicate malware. GlassWire offer a Consumer Solution and a Business solution, to suit the needs of both personal users and IT professionals. Among the features: Real-Time Monitoring to keep an eye on active and past network activity Threat. Threat Detection. GlassWire's built-in firewall detects and blocks potential threats. Application Tracking to Identify which applications are using your network and track their usage patterns. Bandwidth Usage, to stay informed about data consumption, And many more!
    Starting Price: $35.88/year/user
  • 2
    TunnelBear

    TunnelBear

    TunnelBear

    A more secure way to browse the web. TunnelBear encrypts your internet connection to keep your online activity private on any network. Just open the TunnelBear app, select a country, and flip the switch. Once you're connected, TunnelBear will work quietly in the background to keep your data secure. Hackers can steal passwords and data over insecure public WiFi. TunnelBear blocks them to keep you secure. Network owners and internet providers can see everything you do online. With TunnelBear on, they can't see a thing. Some content is only available in certain regions. TunnelBear changes your virtual location so you can see it anywhere. Ad services use your IP address to track your behavior across sites. TunnelBear stops them by assigning you a new IP. Some governments block popular websites and apps. TunnelBear unblocks them by changing your virtual location.
    Starting Price: $59.88/year/user
  • 3
    Coro

    Coro

    Coro Cybersecurity

    Coro puts an end to the security tool sprawl and to the constant worry that things have been overlooked. No need to check everything 10 times a day. Coro will take care of the ongoing security, and will alert you only when you need to take action. Coro analyses the threats to your entire business, takes action to eliminate the risk, and guides you on what to do next to improve your security posture. Coro is the central control point for sensitive data, practice data, and user activity, enabling you to enforce a wide range of security, compliance and governance policies. We scan every email for phishing, malware, ransomware and automatically eliminate threats. We automatically identify and block insider threats, accounts hacking, and malicious activities. We scan every file and email, or any data share for PII/PCI/PHI, and prevent confidential information leakage.
    Starting Price: $8.99 per user per month
  • 4
    CySight

    CySight

    IdeaData

    CySight's Dropless Collection method provides absolute data retention, enabling the most data orientated decision making and cost-effective workflow for any organization, significantly enhancing network performance, network security and cyber intelligence to the highest level. With a Unique approach, CySight delivers comparative baselining, superior granularity, scalable collection, root cause analysis and QoS Analysis. All Designed to run independently or work together as a powerful single unit. CySight empowers communication and application visibility for networking, security, billing and compliance with high-end integrated network traffic analytics, granular forensics, cybersecurity intelligence, cloud usage, internet-of-things analytics, peering and billing to medium and large enterprise customers and service providers. Our objective at CySight is to reveal your data’s potential and eliminate all blind spots.
    Starting Price: $299/month
  • 5
    EventSentry

    EventSentry

    NETIKUS.NET ltd

    Hybrid SIEM solution combining real-time (event) log monitoring with comprehensive system health & network monitoring provides users with a complete picture of their servers and endpoints. The included security event log normalization & correlation engine with descriptive email alerts provides additional context and presents cryptic Windows security events in easy to understand reports that offer insight beyond what is available from raw events. EventSentry's NetFlow component visualizes network traffic, can detect malicious activity and offers insight into bandwith usage. Keeping track of Active Directory changes is easy with EventSentry's ADMonitor component that records all changes to AD & Group Policy objects and provides a complete user inventory to help identify obsolete accounts. Various integrations & multi-tenancy available.
    Starting Price: $85.00/one-time
  • 6
    Xeams

    Xeams

    Synametrics Technologies

    Xeams is, a secure and powerful complete mail server for Windows, Linux, Solaris, MacOSX and other flavors of UNIX. Xeams supports SMTP, POP3, and IMAP. It features a powerful spam filtering engine that eliminates up to 99% of junk email upon installation. The software offers a flexible approach to email, making it a very user-friendly server. Xeams can block 99% percent of all junk messages right out of the box. The filtering rules are fully customizable and get better as Xeams adapts to your email environment. IMAP and POP3 servers built right into the system to easily fetch emails from an email repository to a client's machine. Xeams can be used as an email firewall in front of another server, such as MS Exchange, or as a full email server requiring no other software to process emails. Use Xeams in front of your Office 365 infrastructure to gain additional filtering, reporting and archiving capabilities that you don't get with Office 365 alone.
    Starting Price: $20.00/year/user
  • 7
    indeni

    indeni

    indeni

    Indeni’s security infrastructure automation platform monitors firewall health and auto-detects issues like misconfigurations or expired licenses before they affect network operations. It automatically prioritizes issues so you only receive the most important alerts. Indeni protects your cloud environment by taking a snapshot of it before it’s built. Our cloud security analysis tool, Cloudrail, reviews your infrastructure-as-code files so you can identify violations earlier in development when they’re easier to fix. Constant detection of HA unreadiness from cross-device inconsistencies in security policies, forwarding tables, and other configurations and state. Consistent measurement of device configuration skew against locally-defined organizational standards. Collect relevant performance and configuration data from leading firewalls, load balancers, and other security infrastructure.
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