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Free Network Security Software
Last updated: February 2026
59 software options
Sponsored
Nessus
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Vulnerability assessment solution for security practitioners
Nessus Essentials is available as a free download for students and educators to scan up to 16 IPs. Nessus Pro: $2,390 for one year, or $2,790 for one year with Advanced Support. $4,660 for two years, or $5,460 for two years with Advanced Support. $6,811.50 for three years, or $8,011.50 for three for Advanced Support. A 7-day free trial of Nessus Pro is also available.
Read more about Nessus
ManageEngine EventLog Analyzer
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Web-Based SIEM & Log Management Solution. Affordable Prices.
Free plan available for up to 5 log sources. Premium edition: starts at $595 Distributed edition: starts at $2495
Read more about ManageEngine EventLog Analyzer
EventSentry
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Real-time log & event log hybrid SIEM monitoring solution
One full license has an initial purchase fee of $85, larger license packs offer tier discounts. Contact Netikus for more information on pricing.
Read more about EventSentry
GlassWire
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Network security and monitoring with built-in firewall
Glasswire is available on a subscription basis starting at $2.99 per month. All the pricing options are listed below: Personal (1 license): $2.99/mo, paid annually. Duo (2 licenses): $4.18/mo (2.09 per license), paid annually. Family (5 licenses): $7.48/mo (1.49 per license), paid annually.
Read more about GlassWire
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Modular platform for computing, hosting, storage and more
All customers get free hands-on experience with 20+ Google Cloud products including Compute Engine, Cloud Storage, and BigQuery free of charge, within specified monthly usage limits. When clients stay within the Free Tier limits, these resources are not charged against Free Trial credits or to the Cloud Billing account's payment method after the trial ends. Each product has its specific pricing and is usually charged per usage per month. Please refer to the specific product pricing page on Google cloud Website for more details.
Read more about Google Cloud
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Performance & Security for Any Website
Cloudflare does not charge on the basis of bandwidth usage, instead charges on features. Free Plan offers basic performance and security alongside free SSL and analytics. Pro Plan at $20/month provides advanced performance and security tools including image optimization and a Web Application Firewall. Business Plan at $200/month includes advanced DDOS Attack protection, dynamic content compression, custom WAF rules, prioritized support and custom SSL certificates. Enterprise Plans are bespoke to customer requirements with set-up consultation, a dedicated solution Engineer, phone support and multi-user access.
Read more about Cloudflare
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Virtual Private Network Service Solution
TunnelBear offers a free trial of 7 days, after which the software is available in 2 pricing tiers: Unlimited, Teams. Pricing starts from $3.33 per month for Unlimited and scales for other pricing tiers, outlined below: Unlimited version - $3.33/month. Teams - $207/annually for 3 users.
Read more about TunnelBear
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Simplify network management with NCM
Subscription pricing starts at $238. Perpetual pricing starts at $595.
Read more about ManageEngine Network Configuration Manager
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
A self-hosted VPN solution engineered for SMBs
Pricing is based on allowable concurrent connections to the server.
Read more about OpenVPN Access Server
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Bot management system for protecting websites & mobile apps
GeeTest CAPTCHA provides flexible pricing, including Basic, Advanced, and Elite versions, among which you can customize individual modules, such as UI and security settings, to make a suitable CAPTCHA solution for your business.
Read more about GeeTest CAPTCHA
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Effectively protect all your company's emails
From 7€ to 19€ ht /y/user (depending on the number of emails addresses).
Read more about ALTOSPAM
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Endpoint-to-cloud security for businesses with remote teams
Contact Lookout for pricing details.
Read more about Lookout
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Extensive network bandwidth monitoring and traffic analysis
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Know Your IT
Prices are per month, billed annually. Prices are shown in USD. If your currency is different, please visit our pricing page to see regional pricing.
Read more about Lansweeper
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Asset inventory and network visibility for security and IT.
runZero is priced based on the number of live assets, that's it! A 21-day free trial is available.
Read more about runZero
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Shared PC authentication, proximity, 2FA/MFA wireless token.
GateKeeper Enterprise offers a 14-day free trial for new users, after which the software is available across 3 pricing tiers, details of which are outlined below - Core - $3/user/month Advanced - $5/user/month Ultimate - $8/user/month
Read more about GateKeeper Enterprise
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cybersecurity management software
Coro Free - $0 user/month Coro Flexible - $8.99 user/month Coro Annual - $6.99 user/month (billed annually)
Read more about Coro
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Simplified Vulnerability Remediation
14 day free trial sign up.
Read more about vRx
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Global Vulnerability Scanner. Cyber Security, Demystified.
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Comprehensive SIEM solution
Pricing is based on number of log sources. Doesn't limit number of log data. Contact ManageEngine for more information.
Read more about ManageEngine Log360
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud and edge computing security solution
Contact Cloudbric for pricing information.
Read more about Cloudbric
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Workforce Multi-Factor Authentication for SMB and Enterprise
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Password audit & security tool for Active Directory accounts
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Network management and protection
Pricing starts from $270/year for up to 12 licensed devices. Contact Untangle to configure a custom package.
Read more about NG Firewall
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Privileged Password Manager for Enterprises
Please contact ManageEngine for additional pricing details.
Read more about ManageEngine Password Manager Pro