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ET Ducky vs OSSEC: Which is Better in 2026?

Choosing between ET Ducky and OSSEC comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.

Bottom line: OSSEC wins this matchup. SolarWinds is our overall Monitoring pick. Hookdeck is our free Monitoring pick. Pick ET Ducky if you need monitoring.

··Methodology
Editor reviewed0 verified reviews comparedPricing checked Oct 2026

Short on time? Here's the quick answer

We've tested both tools. Here's who should pick what:

ET Ducky

Kernel-level telemetry for instant root-cause analysis

Best for you if:

  • • Internal IT teams and MSPs managing Windows and Linux servers and desktops, from one server to thousands of endpoints
  • • You want automated Troubleshooting
  • • You want automated Root Cause Analysis

OSSEC

Open-source host intrusion detection

Best for you if:

  • • You want a fully free tool (ET Ducky requires payment)
  • • You want open source HIDS
  • • You want good intrusion detection
At a Glance
ET DuckyET Ducky
OSSECOSSEC
Starts at
FreeFree tier available
FreeFree tier available
Best For
MonitoringSecurity
Rating
-4.6/5G2 4.6
Free plan
 Yes Yes

Choose ET Ducky or OSSEC?

ET Ducky

Choose ET Ducky if

Kernel-level telemetry for instant root-cause analysis

  • Internal IT teams and MSPs managing Windows and Linux servers and desktops, from one server to thousands of endpoints
  • You want automated Troubleshooting
  • You want automated Root Cause Analysis
  • Your work is monitoring-shaped, not security-shaped
OSSEC

Choose OSSEC if

Open-source host intrusion detection

  • You want a fully free tool (ET Ducky requires payment)
  • You want open source HIDS
  • You want good intrusion detection
  • Your work is security-shaped, not monitoring-shaped
ET Ducky logo

ET Ducky

Kernel-level telemetry for instant root-cause analysis

Visit Website
TOP RATED
OSSEC logo

OSSEC

Open-source host intrusion detection

Visit Website
FeatureET DuckyOSSEC
Pricing ModelFreemiumFree
User RatingNo ratings yet
★4.6/5
10 reviews
Categories
MonitoringSecurity
SecurityMonitoring

In-Depth Analysis

ET DuckyET Ducky

Kernel-level telemetry for instant root-cause analysis

Starts at Free
Fair value

The free tier is a strong entry point for users who bring their own AI key, but the Business ($99) and Enterprise ($249) tiers offer no additional agent count beyond the 20-per-user pool, making them better suited for orgs needing higher AI query volume and support rather than agent density.

Strengths

  • +Automated Troubleshooting
  • +Automated Root Cause Analysis
  • +Self-hosted Option
  • +No Minimum Endpoint Count

Weaknesses

  • -No Mac Support

Key features

Automatic root-cause analysis for every alert, built from ETW (Windows) and eBPF (Linux) kernel eventsPatch management with rollout rings, maintenance windows, and auto-pause when services fail after a rebootBrowser-based remote desktop for Windows and Linux without the need for a VPNBehavioral security rules on the live kernel event stream, with host isolation

OSSECOSSEC

Open-source host intrusion detection

Starts at Free
Great value

OSSEC's pricing is exceptionally generous as it is entirely free.

Strengths

  • +Open source HIDS
  • +Good intrusion detection
  • +Self-hostable
  • +Active community
  • +Free

Weaknesses

  • -Complex setup
  • -Learning curve
  • -UI limited
  • -Documentation dated
  • -Resource usage

Key features

Host IDSLog analysisFile integrityRootkit detectionActive responseOpen source

Pricing: ET Ducky vs OSSEC

PlanET DuckyOSSEC
Tier 1
0 month
Free query tier
Free
Free
Tier 2
39 month
Professional
N/A
Tier 3
99 month
Business
N/A
Tier 4
249 month
Enterprise
N/A

Pricing verified from each vendor's public pricing page. Compare in detail on ET Ducky pricing and OSSEC pricing.

Who Should Use What?

On a budget?

OSSEC is free. ET Ducky is freemium.

Go with: OSSEC

Want the highest-rated option?

OSSEC is rated 4.6/5. ET Ducky has no ratings yet.

Go with: OSSEC

Value user reviews?

ET Ducky: no ratings yet. OSSEC: 10 reviews (4.6/5).

Go with: OSSEC

3 Questions to Help You Decide

1

What's your budget?

ET Ducky is freemium. OSSEC is free. Go with OSSEC if free matters most.

2

What's your use case?

ET Ducky is a monitoring tool. OSSEC is in security. Pick the category that matches your needs.

3

How important are ratings?

OSSEC is rated 4.6/5; ET Ducky has no ratings yet.

Key Takeaways

OSSEC

  • Completely free
  • Our pick for this comparison

ET Ducky

  • Better fit for monitoring

The Bottom Line

OSSEC wins this matchup. SolarWinds is our overall Monitoring pick. Hookdeck is our free Monitoring pick.

Frequently Asked Questions

Is ET Ducky or OSSEC better?

OSSEC is rated in our evaluation. ET Ducky is freemium and OSSEC is free.

What are ET Ducky and OSSEC used for?

ET Ducky: Kernel-level telemetry for instant root-cause analysis. OSSEC: Open-source host intrusion detection.

What does ET Ducky cost vs OSSEC?

ET Ducky is freemium (free tier + paid plans). OSSEC is completely free. Visit their websites for detailed pricing.

Related Comparisons & Resources

ET Ducky AlternativesOSSEC AlternativesET Ducky Full ReviewOSSEC Full Review
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