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Acunetix Alternatives: 6 Options Compared, Including Free (2026)

Explore 6 alternatives to Acunetix — vetted by our editors with real user reviews, pricing, and feature comparisons.

6 top-rated free Acunetix alternatives at a glance

Quick answer

Short on time? The best free alternatives to Acunetix are Intruder, Sysdig Secure and Amazon Inspector. Intruder leads the list with a 4.9★ rating from real users. Compare all 6 on rating and pricing below.

If Acunetix is holding you back on price, features, or usability, you have real options. These 6 website security software free alternatives are the strongest, ranked by SpotScore (real-user satisfaction and market presence combined), ratings, and pricing model. Our editors review each. Scan the table, then explore the detail for every pick.

ProductSpotScoreRatingPricingBest for
IntruderEasily safeguard your systems from unwelcome threats.—★★★★★ 4.9FreeFree Trial · Quotation Based · Subscriptionteams of all sizes
Sysdig SecureProtect your cloud and containers with confidence.—★★★★★ 4.8(55)FreeFree Trial · Quotation Basedteams of all sizes
Amazon InspectorProtect your digital assets with proactive vulnerability management.—Not yet ratedFreeFree Trial · Quotation Based · Subscriptionteams of all sizes
VirusdieSecure your website, protect your business.—★★★★★ 4.8FreeFree Trial · Subscriptionteams of all sizes
PowerDMARCSecuring your business one email at a time.—★★★★★ 5Freefrom $8.00 per monthteams of all sizes
SiteLockSecure your website with the power of SiteLock.—★★★★☆ 4.45(1077)FreeFree Trial · Subscription · Quotation Basedteams of all sizes
Intruder

Intruder

Easily safeguard your systems from unwelcome threats.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.9

Add to compare

What is Intruder?

Meet Intruder, the ultimate solution for effortless vulnerability scanning. With the tagline "An Effortless Vulnerability Scanner," Intruder lives up to its name by providing top-notch cyber security protection without any hassles. Gone are the days of costly data breaches and security ...

Read more about Intruder
Free Trial·

Intruder offers custom pricing plan

Sysdig Secure - New SaaS Software

Sysdig Secure

Protect your cloud and containers with confidence.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is Sysdig Secure?

Sysdig Secure is a powerful cloud and container security platform that provides an intelligent architecture for monitoring, security, and forensics integrated with Docker and Kubernetes. With a unified platform, users can gain a better understanding of security across their cloud, containers, ...

Read more about Sysdig Secure
Free Trial·

Sysdig Secure offers custom pricing plan

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Reach in-market buyersRank above rivals2M+ buyers a year
Amazon Inspector

Amazon Inspector

Protect your digital assets with proactive vulnerability management.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

Add to compare

What is Amazon Inspector?

Introducing Amazon Inspector – your trusted partner in automated software vulnerability management. With a focus on enhancing security measures, Amazon Inspector is a cutting-edge service designed to proactively scan AWS workloads for potential software vulnerabilities and prevent unintended ...

Read more about Amazon Inspector
Free Trial·

Amazon Inspector offers custom pricing plan

Virusdie

Virusdie

Secure your website, protect your business.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

4.8

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What is Virusdie?

Virusdie is a comprehensive website anti-hacker security software available on the Internet today. It protects inbound hacker attacks, blocks malware, and even works with the web hosting to help protect user's site from bad traffic. Virusdie can also work with large companies needing website ...

Read more about Virusdie
Free TrialTry Free →
PowerDMARC

PowerDMARC

Securing your business one email at a time.

Best for: SMB teams · Mid-market · Enterprise

Start Free Trial

5.0

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What is PowerDMARC?

Introducing PowerDMARC, the ultimate email domain protection tool designed to safeguard businesses from potential threats such as business email compromise (BEC), spoofing, and sophisticated phishing attacks. This innovative platform provides real-time alerts to effectively combat spoofing ...

Read more about PowerDMARC
Free TrialTry Free →·

PowerDMARC offers custom pricing plan

SiteLock - Website Security Software

SiteLock

Secure your website with the power of SiteLock.

Best for: SMB teams · Mid-market

Start Free Trial

Add to compare

What is SiteLock?

SiteLock offers top-notch cybersecurity solutions for businesses of all sizes. Our cutting-edge technology is designed to keep your website safe and secure, with advanced vulnerability detection and automatic malware removal. From WordPress database scanning to core CMS vulnerability patching, ...

Read more about SiteLock
Free Trial·

SiteLock offers custom pricing plan

Acunetix competitors, compared

Buyers comparing Acunetix usually weigh it against these 6 website security software competitors, starting with Intruder, Sysdig Secure and Amazon Inspector. Each is compared against Acunetix on rating, pricing and feature coverage below.

Sites and apps like Acunetix

Searches for "sites like Acunetix" and "apps like Acunetix" land on the same set of options as "Acunetix alternatives" — the 6 options below cover both, whether you want a like-for-like replacement or something lighter.

Why each made the list

IntruderBest for teams of all sizes
Sysdig SecureBest for teams of all sizes

Comprehensive security monitoring

Watch for: May require technical expertise

Amazon InspectorBest for teams of all sizes
VirusdieBest for teams of all sizes

Comprehensive security

Watch for: Limited support for small businesses

PowerDMARCBest for teams of all sizes
SiteLockBest for teams of all sizes

Exceptional customer service from representatives like Danielle, Crystal, Eric, and others.

Watch for: Some customers faced difficulties in resolving malware issues despite paying for services.

Why teams look for a Acunetix alternative

Teams looking past Acunetix often cite reasons like these:

  • Can be expensive for small businesses
  • Requires technical knowledge
  • Limited support options
  • May generate false positives

What to keep in mind choosing a Acunetix alternative

The quick comparison across all 6 free alternatives: 6 offer a free tier; paid plans run $8, with PowerDMARC the cheapest entry point; and Sysdig Secure is the highest rated at 4.8★ across 55 reviews.

Our ranking method.

Frequently Asked Questions (FAQs)

Stuck on something? We're here to help with all the questions and answers in one place.

The top-rated alternatives to Acunetix are PowerDMARC (5.0★), Intruder (4.9★), Sysdig Secure (4.8★). Compare all 6 alternatives side-by-side above.

When evaluating alternatives to Acunetix, prioritize: Security Testing, Vulnerability Prioritization, Reports, Dashboard, Network Scanning, transparent pricing, free trial availability, and integrations with your existing tools. Use the filters above to compare by feature, budget, and team size.

Migration difficulty depends on how deeply Acunetix is integrated into your workflows. Most alternatives offer data export/import tools and dedicated onboarding support. We recommend narrowing to 2–3 options, running a free trial, and checking each vendor's migration guides before committing.

Picking the best Acunetix alternative for your team

  • On a budget / just exploring: start with a free tier — Intruder, Sysdig Secure and Amazon Inspector let you evaluate without paying upfront.
  • If real-user ratings matter most: Sysdig Secure has the strongest star rating (4.8★) among the options with verified reviews.

How to switch from Acunetix

Switching from Acunetix goes smoother with a plan. Start by exporting your data and making sure the new tool imports it cleanly. Confirm the workflows you rely on still work, run a small pilot first, and keep Acunetix running until everything's moved. Most options above let you test free before you commit.

Disclaimer: This research has been collated from a variety of authoritative sources. We welcome your feedback at [email protected].