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Free SIEM Software
Last updated: February 2026
18 software options
Sponsored
BusinessLOG
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Log Management AI, New Generation LOG Collector Tools
Proportional to the network size
Read more about BusinessLOG
EventSentry
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Real-time log & event log hybrid SIEM monitoring solution
One full license has an initial purchase fee of $85, larger license packs offer tier discounts. Contact Netikus for more information on pricing.
Read more about EventSentry
ManageEngine Log360
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Comprehensive SIEM solution
Pricing is based on number of log sources. Doesn't limit number of log data. Contact ManageEngine for more information.
Read more about ManageEngine Log360
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Modular platform for computing, hosting, storage and more
All customers get free hands-on experience with 20+ Google Cloud products including Compute Engine, Cloud Storage, and BigQuery free of charge, within specified monthly usage limits. When clients stay within the Free Tier limits, these resources are not charged against Free Trial credits or to the Cloud Billing account's payment method after the trial ends. Each product has its specific pricing and is usually charged per usage per month. Please refer to the specific product pricing page on Google cloud Website for more details.
Read more about Google Cloud
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud-Scale Monitoring Platform For Dev, Sec, and Ops teams.
Starts at $15 per host per month. Pay-as-you-go or subscription terms available. Service includes unlimited integrations per monitored host. 14-day free trial included in all plans. All plans include custom metrics and events. Pro plans include 13 months data retention, metric alerts, and email support.
Read more about Datadog
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Endpoint-to-cloud security for businesses with remote teams
Contact Lookout for pricing details.
Read more about Lookout
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud-based application and infrastructure monitoring tool
Sematext Cloud offers a 14-day free trial, after which the software is available based on selected modules, as outlined below: Logs: * Basic - Available for free * Standard - $50 per month * Pro - $60 per month Monitoring: Container monitoring: * Basic - Available for free * Standard - $0.007 per container per hour *Pro - $0.011 per container per hour App & Server monitoring: * Basic - Available for free * Standard - $0.035 per agent per hour * Pro - $0.070 per agent per hour Experience: * Startup - $9 per month * Standard - $19 per month * Pro - $89 per month Synthetics: * Pay-as-you-go - $5 per month * Standard - $29 per month * Pro - $99 per month
Read more about Sematext Cloud
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Unified Logs & Metrics for Full App Visibility
Sumo Logic Free (Up to 500 MB) - $Free Sumo Logic Professional - $270/month ($90/GB, 3 GB minimum) Sumo Logic Enterprise - $450/month ($150/GB, 3 GB minimum)
Read more about Sumo Logic
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Log Management | SIEM | API Security
Pls contact us for pricing details
Read more about Graylog
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Machine data analytics based on ELK and Grafana
Contact Logz.io for detailed pricing information.
Read more about Logz.io
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Log management platform enhanced with SIEM capabilities
All packages include full log management and SIEM functionality, ensuring that customers in any tier can fully benefit from Logmanager, and does not impose limitations on the number of users. Pay only for the log data you store each month. No limits on daily data volume. Available for VMware, Hyper-V, and Proxmox.
Read more about Logmanager
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Threat detection and response software for IT security teams
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
ALL-IN-ONE SECURITY PLATFORM for SMEs
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Security & Compliance. At the Speed of DevOps.
Organizations leveraging JupiterOne can rest assured with predictable monthly pricing.
Read more about JupiterOne
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Web-Based SIEM & Log Management Solution. Affordable Prices.
Free plan available for up to 5 log sources. Premium edition: starts at $595 Distributed edition: starts at $2495
Read more about ManageEngine EventLog Analyzer
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
SaaS content and threat detection platform
Contact SOC Prime for pricing information.
Read more about Threat Detection Marketplace
Based on GetApp‘s extensive, proprietary database of in-depth, verified user reviews
Cloud SIEM solution for a secure IT infrastructure
Free Plan (50 GB Storage) - $0 Basic Plan (75 GB Storage) - $300 Standard Plan (150 GB Storage) - $995 Professional Plan (150 GB Storage - $1995 MSSP Edition (150 GB Storage) - $1995
Read more about ManageEngine Log360 Cloud
Standard Edition starts at $345 per month for 100 users/mailboxes Professional edition starts at $595 per month for 100 users/mailboxes Contact ManageEngine for more information on pricing.
Read more about M365 Manager Plus