Best SIEM Software in 2026
Updated
In short: Vigil is ranked #1 of 23 as of 4 October 2026, ahead of Wazuh and Elastic Security. The best-ranked option with a free plan is Wazuh. The lowest first paid tier on this page is Elastic Security at $0.09/mo.
Security information and event management (SIEM) software helps you examine security data and respond to events. Compare real-time alerting and custom detection rules with data retention and query language to understand how each option approaches detection and analysis. Deployment, free ingestion limits, free-plan availability, and paid-from pricing add practical details for comparison. nano SIEM and Vigil are among the first entries, followed by Wazuh and Elastic Security. Seceon Open Threat Management, Sumo Logic, CrowdStrike Falcon Surface, and Devo Analytics Cloud also appear near the start. Use the listed criteria to compare capabilities and costs against your monitoring needs.
23 SIEM software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
4 of the 23 here have a free tier you can use, 0 have open-source code on record, and 0 have full bars: free, open, on most of your devices and documented.
| # | App | Signal | Free tier | Open code | Devices | From | Score |
|---|---|---|---|---|---|---|---|
| 1 | VigilWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | Free | 6.6 | |
| 2 | WazuhWeb · Windows · Mac · Linux · Self-hosted · API | Three bars | — | 4 of 6 | $571/mo | 6.6 | |
| 3 | Elastic SecurityWeb · Linux · Self-hosted · API | Two bars | — | 2 of 6 | $0.09/mo | 6.5 | |
| 4 | Sumo LogicWeb | Two bars | — | 1 of 6 | Free | 6.3 | |
| 5 | nano SIEMWeb · Windows · Mac · Linux · Self-hosted · API | Two bars | — | — | 4 of 6 | $26/mo | 5.7 |
| 6 | Seceon Open Threat ManagementWeb · Self-hosted | One bar | — | — | 1 of 6 | — | 5.4 |
| 7 | Devo Analytics CloudWeb | One bar | — | — | 1 of 6 | — | 5.3 |
| 8 | CrowdStrike Falcon SurfaceWeb · Windows · Mac · Linux | Two bars | — | — | 4 of 6 | — | 5.2 |
| 9 | FortiSIEMWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 10 | ManageEngine Log360Web · Windows · Linux · Self-hosted · API | Two bars | — | — | 3 of 6 | $20.42/mo | 5.2 |
| 11 | MaxPatrol SIEMWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 12 | Rapid7 Surface CommandWeb · Windows · Mac · Linux · API | Two bars | — | — | 4 of 6 | — | 5.2 |
| 13 | Securonix Unified Defense SIEMWeb | No signal | — | — | 1 of 6 | — | 5.2 |
| 14 | UTMStackWeb · Windows · Mac · Linux · Self-hosted · API | Two bars | — | — | 4 of 6 | $238.80/mo | 5.2 |
| 15 | HuntersNo platforms listed | No signal | — | — | 0 of 6 | — | 5.1 |
| 16 | LogSentinel SIEMWeb · Windows · Linux · Self-hosted · API | One bar | — | — | 3 of 6 | — | 5.1 |
| 17 | NetWitness PlatformWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 18 | PantherWeb | No signal | — | — | 1 of 6 | — | 5.1 |
| 19 | Coralogix APMWeb · API | One bar | — | — | 1 of 6 | $0.16/mo | 5.0 |
| 20 | Graylog EnterpriseWeb · Linux · Self-hosted · API | One bar | — | — | 2 of 6 | $1,250/mo | 5.0 |
| 21 | BlumiraWeb | One bar | — | — | 1 of 6 | $12/mo | 4.9 |
| 22 | Kaspersky Research SandboxWeb · Windows · Linux · Android · Self-hosted · API | One bar | — | — | 4 of 6 | — | 4.8 |
| 23 | SolarWinds Security Event ManagerWeb | No signal | — | — | 1 of 6 | — | 4.8 |
Is your app on this list?
Numbered spots on this list can be sponsored. They are labelled, and the editorial order and scores never change for payment.
Questions about this list
Which SIEM software is ranked first on Freedom251?
Vigil is ranked #1 of 23 with a score of 6.6. Wazuh is second and Elastic Security third.
How many of these have a free plan?
4 of the 23 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Elastic Security has the lowest first paid tier we found: $0.09/mo.
How is this list ranked?
Ranked free-and-open first: a usable free tier and open-source code, then the platforms it runs on and its documentation. Paid placements never change a rank.