The strongest NinjaFirewall alternative for most sites is Wordfence, which pairs a firewall with malware scanning and login security in one approachable dashboard that NinjaFirewall leaves to separate tools. For a cleaner scanner and off-site hardening, Sucuri Security is a solid free pick, while Kadence Security focuses on locking down logins. We ranked these from our index of 55,000+ WordPress plugins.

Why people switch from NinjaFirewall

• NinjaFirewall is a powerful firewall but has no malware scanner of its own, so people move to Wordfence or Sucuri Security for scanning.
• Its configuration is technical, so less experienced users move to Kadence Security or All-In-One Security (AIOS) for guided setup.
• Sites wanting an all-in-one security suite move to Wordfence or Defender.
• Users wanting login hardening and two-factor without deep tuning move to Kadence Security.

Wordfence – All-in-one security

Wordfence from Defiant is the most widely used WordPress security suite, combining an endpoint firewall, malware scanner, and login protection. Against NinjaFirewall, it adds the scanning and monitoring NinjaFirewall omits, all in one dashboard. The drawback is that its firewall runs as a WordPress plugin rather than ahead of PHP, and new threat signatures reach free users on a delay.

Choose Wordfence if you want firewall, scanning, and login security in a single familiar plugin.

Sucuri Security – Scanning and hardening

Sucuri Security from Sucuri offers free file integrity monitoring, security activity auditing, and hardening, with a cloud firewall available on paid plans. Against NinjaFirewall, it adds clear scanning and audit logs out of the box. The drawback is that the free plugin does not include a firewall, since real protection comes from the paid Sucuri WAF.

Choose Sucuri Security if you want strong auditing and scanning with the option of a cloud firewall.

Kadence Security – Login hardening

Kadence Security is the security plugin now maintained under the Kadence brand, focused on login protection, two-factor authentication, and brute-force defense. Against NinjaFirewall, it makes hardening approachable with guided settings rather than manual rules. The drawback is that its firewall and malware scanning are weaker than dedicated tools, so it is more a hardening layer than a full firewall.

Choose Kadence Security if you want approachable login hardening and two-factor without deep configuration.

All-In-One Security (AIOS) – Free security suite

All-In-One Security (AIOS) is a free, feature-rich suite from the team behind UpdraftPlus, covering login lockdowns, firewall rules, and file monitoring. Against NinjaFirewall, it bundles many protections into a graded, beginner-friendly interface at no cost. The drawback is that some settings can break site functionality if applied without care, and advanced features now sit in a premium version.

Choose All-In-One Security (AIOS) if you want a broad, free security toolkit with a guided interface.

Defender – Clean WPMU DEV suite

Defender from WPMU DEV provides malware scanning, firewall rules, login protection, and security recommendations in a tidy dashboard. Against NinjaFirewall, it wraps scanning and hardening into an easy checklist-style workflow. The drawback is that its most useful automated scanning and IP protection features are reserved for the paid WPMU DEV membership.

Choose Defender if you want a clean, guided security suite and use other WPMU DEV tools.

When to stay on NinjaFirewall

Stay on NinjaFirewall if you want a genuinely powerful firewall that filters traffic before WordPress and even PHP fully load, which most plugin-based firewalls cannot match. For technical users and developers who value that low-level protection and fine-grained rules, NinjaFirewall is hard to beat, and pairing it with a separate scanner is a legitimate setup.

How we ranked these

Every plugin here is scored by the WPS Score, a single 0 to 10 rating built from 21 signals covering maintenance, support responsiveness, compatibility, performance, and ratings quality across our index of 55,000+ plugins. Rankings are derived from that data, not editorial preference, and no plugin author can pay to change a score. How the WPS Score works.

Frequently asked questions

What is the best free alternative to NinjaFirewall?

Wordfence is the most complete free alternative because it combines a firewall, malware scanner, and login security in one plugin. All-In-One Security is another strong free option with a broad toolkit, while Sucuri Security is excellent for free scanning and auditing even though its firewall is a paid service.

Does NinjaFirewall scan for malware?

NinjaFirewall is primarily a firewall and does not include a built-in malware scanner in the way Wordfence or Sucuri do. Many sites run NinjaFirewall for its strong request filtering and add a separate scanning tool. If you want firewall and scanning in one plugin, Wordfence or Defender is a better fit.

Is Wordfence or NinjaFirewall better for performance?

NinjaFirewall can filter malicious requests before WordPress loads, which is efficient at blocking attacks early. Wordfence runs within WordPress and does more scanning, which can use more resources on large sites. For pure firewall efficiency NinjaFirewall has an edge, while Wordfence trades some overhead for an all-in-one feature set.

The verdict

For most sites, Wordfence is the best all-round NinjaFirewall alternative because it unifies firewall, scanning, and login security. Sucuri Security suits sites wanting auditing plus a cloud firewall, and Kadence Security covers login hardening simply. If you value NinjaFirewall’s low-level, pre-PHP filtering and are comfortable adding a scanner, staying put is a strong technical choice.