Best Security Monitoring Tools in 2026
Toolradar data: we track 15 security monitoring tools, 4 of them with a free tier (27%), and 9 entered our catalog during 2026. 11 clear our editorial bar.
Toolradar data: we track 15 security monitoring tools, 4 of them with a free tier (27%), and 9 entered our catalog during 2026. 11 clear our editorial bar.
This guide covers the 10 that score highest, what separates them, and where each free tier stops. Scores are ours; ratings and review counts come from third-party review platforms.
Quick comparison
| Tool | Free tier | Rating | What it does |
|---|---|---|---|
| PRTG | Yes | 4.5 | All-in-One Network Monitoring Software to stay ahead of IT inf |
| Wazuh | Yes | 4.5 | Open-source security monitoring |
| Splunk | No | 4.4 | Data platform for security and observability |
| Huntress | No | 4.6 | Managed security for small businesses |
| Qualys | No | 4.1 | Cloud security and compliance platform |
| OneTrust | No | n/a | The AI-Ready Governance Platform for continuous compliance acr |
| Sophos | No | 4.6 | Unified enterprise security for midsize businesses |
| ESET | No | 4.6 | Cybersecurity solutions for businesses and consumers |
| Drata | No | 4.8 | Continuous security compliance |
| Vanta | No | 4.5 | The AI Trust Management Platform for automated compliance, ris |
The picks
PRTG
All-in-One Network Monitoring Software to stay ahead of IT inf. Editorial score 89, free tier available, rated 4.5 across 378 third-party reviews.
Full profile, pricing and alternatives
Wazuh
Open-source security monitoring. Editorial score 86, free tier available, rated 4.5 across 63 third-party reviews.
Full profile, pricing and alternatives
Splunk
Data platform for security and observability. Editorial score 84, paid only, rated 4.4 across 668 third-party reviews.
Full profile, pricing and alternatives
Huntress
Managed security for small businesses. Editorial score 82, paid only, rated 4.6 across 403 third-party reviews.
Full profile, pricing and alternatives
Qualys
Cloud security and compliance platform. Editorial score 82, paid only, rated 4.1 across 90 third-party reviews.
Full profile, pricing and alternatives
OneTrust
The AI-Ready Governance Platform for continuous compliance acr. Editorial score 82, paid only.
Full profile, pricing and alternatives
Sophos
Unified enterprise security for midsize businesses. Editorial score 80, paid only, rated 4.6 across 2356 third-party reviews.
Full profile, pricing and alternatives
ESET
Cybersecurity solutions for businesses and consumers. Editorial score 78, paid only, rated 4.6 across 1319 third-party reviews.
Full profile, pricing and alternatives
How we picked
Every tool here is published on Toolradar with an editorial score of 74 or above, out of 15 tracked in this category. Ordering follows that score, then third-party review volume, so a tool with one glowing review does not outrank one with a thousand. The figures update as the catalog does.
FAQ
How many security monitoring tools are there?
We track 15 published security monitoring tools, of which 11 clear our editorial bar. 9 were added during 2026, which reflects when we indexed them rather than when each vendor launched.
Are there free security monitoring tools?
Fewer than you might expect: 4 of 15 offer a free tier, 27%. This is a category where the serious options are paid, and free tiers are trials in practice.
How should I shortlist?
Start from the constraint that will not move: budget, an existing stack you must integrate with, or a compliance requirement. Filter on that first, then compare the two or three that survive. Ranking by feature count leads to the most expensive tool every time.
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Written by
Louis Corneloup
Founder & Editor-in-Chief at Toolradar. Founder & CEO of Dupple, the publisher of 5 industry newsletters reaching 720K+ tech professionals. Reviews B2B software using a public methodology, see /how-we-rate and /editorial-policy.