Wazuh vs Splunk: Which is Better in 2026?
Choosing between Wazuh and Splunk 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: Wazuh wins this matchup. ESET is our overall Security Monitoring pick. PRTG is our free Security Monitoring pick. Pick Splunk if you need its specific feature set.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
Wazuh
Open-source security monitoring
Best for you if:
- • You want a fully free tool (Splunk requires payment)
Splunk
Data platform for security and observability
Best for you if:
- • You want powerful search
| At a Glance | Splunk | |
|---|---|---|
Starts at | Free 100% free | Custom |
Category | Security Monitoring Vulnerability Scanning | Security Monitoring Log Management |
Rating | 4.5/5 G2 4.5 71 reviews | 4.4/5 G2 4.3 · Capterra 4.6 697 reviews |
Free plan | Yes | No |
Watch out for | n/a | Overage fees for exceeding negotiated limits. |
Choose Wazuh or Splunk?
Choose Wazuh if
- You want a fully free tool (Splunk requires payment)
- You want open source SIEM
- You want good features
Choose Splunk if
- You want powerful search
- You want enterprise features
In-Depth Analysis
Wazuh
Open-source security monitoring
Wazuh's pricing is exceptionally generous, offering a full-featured open-source SIEM/XDR solution for $0.
Strengths
- Pro: Open source SIEM
- Pro: Good features
- Pro: Self-hostable
- Pro: Active development
- Pro: Free
Weaknesses
- Con: Complex setup
- Con: Learning curve
- Con: Resource intensive
- Con: Documentation gaps
- Con: Enterprise features paid
Key features
Splunk
Data platform for security and observability
The lack of transparent pricing for any tier (Workload, Ingest, Entity, Activity-based) suggests it can be expensive, requiring direct engagement for quotes.
Watch out
Overage fees for exceeding negotiated limits.
Strengths
- Pro: Powerful search
- Pro: Enterprise features
- Pro: Great visualizations
Weaknesses
- Con: Very expensive
- Con: Complex pricing
Key features
Pricing: Wazuh vs Splunk
| Plan | Wazuh | Splunk |
|---|---|---|
| Tier 1 | Free Open Source | Workload Pricing |
| Tier 2 | Free Cloud | Ingest Pricing |
| Tier 3 | N/A | Entity Pricing |
| Tier 4 | N/A | Activity-based Pricing |
Pricing verified from each vendor's public pricing page. Compare in detail on Wazuh pricing and Splunk pricing.
Key Takeaways
Wazuh
- Higher user rating: 4.5/5 vs 4.4/5
- Completely free
- Our pick for this comparison
Splunk
- Larger review base (697 reviews)
The Bottom Line
Wazuh wins this matchup. ESET is our overall Security Monitoring pick. PRTG is our free Security Monitoring pick.
Frequently Asked Questions
Is Wazuh or Splunk better in 2026?
Wazuh wins this matchup. ESET is our overall Security Monitoring pick. PRTG is our free Security Monitoring pick. Pick Wazuh for security monitoring workflows (main strength: open source SIEM). Pick Splunk for security monitoring workflows (main strength: powerful search).
What are Wazuh and Splunk used for?
Wazuh: Open-source security monitoring. Splunk: Data platform for security and observability.
What does Wazuh cost vs Splunk?
Wazuh is free. Splunk pricing is on their site.
What's the main difference between Wazuh and Splunk?
Wazuh's main strength: open source SIEM. Splunk's main strength: powerful search.