Compare the Top Free Log Analysis Software as of October 2025

What is Free Log Analysis Software?

Log analysis software helps organizations collect, monitor, and analyze log data generated by systems, applications, and network devices to gain insights into system performance, security, and user behavior. These tools aggregate log files from various sources, enabling users to identify issues such as errors, security breaches, and performance bottlenecks. Key features of log analysis software often include real-time log collection, filtering, search capabilities, and advanced analytics to detect anomalies and trends. It is commonly used for IT operations, security monitoring, and troubleshooting, helping businesses maintain system health and comply with security standards. Compare and read user reviews of the best Free Log Analysis software currently available using the table below. This list is updated regularly.

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    Pandora FMS

    Pandora FMS

    Pandora FMS

    With more than 50,000 customer installations across the five continents, Pandora FMS is a truly all-in-one monitoring solution, covering all traditional silos for specific monitoring: servers, networks, applications, logs, synthetic/transactional, remote control, inventory, etc. Pandora FMS gives you the agility to find and solve problems quickly, scaling them so they can be derived from any source, on-premise, multi cloud or both of them mixed. Now you have that capability across your entire IT stack and analytics to find any problem, even the ones that are hard to find. Thanks to more than 500 plugins available, you can control and manage any application and technology, from SAP, Oracle, Lotus, Citrix or Jboss to VMware, AWS, SQL Server, Redhat, Websphere, etc.
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    Starting Price: €90/month
  • 2
    Graylog

    Graylog

    Graylog

    Built on the Graylog Platform, Graylog Security is the industry’s best-of-breed threat detection, investigation, and response (TDIR) solution. It simplifies analysts’ day-to-day cybersecurity activities with an unmatched workflow and user experience while simultaneously providing short- and long-term budget flexibility in the form of low total cost of ownership (TCO) that CISOs covet. With Graylog Security, security analysts can: 1. Decrease risk and metrics like mean time to detect (MTTD) by aligning threat detection coverage to meet your security objectives 2. Reduce TCO with native data routing and data tiering functionality 3. Reduce key metrics like mean time to respond (MTTR) by quickly resolving the alerts that matter. Graylog Security is a robust, scalable solution that empowers analysts to detect and respond to cybersecurity threats efficiently. With integrated SOAR functionality, it automates repetitive tasks, orchestrates workflows, and accelerates incident response.
    Starting Price: $1550/month
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    EventSentry

    EventSentry

    NETIKUS.NET ltd

    Hybrid SIEM solution combining real-time (event) log monitoring with comprehensive system health & network monitoring provides users with a complete picture of their servers and endpoints. The included security event log normalization & correlation engine with descriptive email alerts provides additional context and presents cryptic Windows security events in easy to understand reports that offer insight beyond what is available from raw events. EventSentry's NetFlow component visualizes network traffic, can detect malicious activity and offers insight into bandwith usage. Keeping track of Active Directory changes is easy with EventSentry's ADMonitor component that records all changes to AD & Group Policy objects and provides a complete user inventory to help identify obsolete accounts. Various integrations & multi-tenancy available.
    Starting Price: $85.00/one-time
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    Gravwell

    Gravwell

    Gravwell

    Gravwell is an all-you-can-ingest data fusion analytics platform that enables complete context and root cause analytics for security and business data. Gravwell was founded to bring the benefits of usable machine data to all customers: large or small, text or binary, security or operational. When experienced hackers and big data experts team-up you get an analytics platform capable of things never seen before. Gravwell enables security analytics that go well beyond log data into industrial processes, vehicle fleets, IT infrastructure, or everything combined. Need to hunt down a suspected access breach? Gravwell can correlate building access logs and run facial recognition machine learning against camera data to isolate multiple subjects entering a facility with a single badge-in. We exist to provide analytics capabilities to people who need more than just text log searching and need it sooner rather than later at a price they can afford.
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    LogFusion

    LogFusion

    Binary Fortress Software

    LogFusion is a powerful realtime log monitoring application designed for system administrators and developers! Use custom highlighting rules, filtering and more. You can even sync your LogFusion settings between computers. Use LogFusion's powerful custom highlighting to match text strings or regex patterns and format the matched log lines to suit your needs. Use LogFusion's Advanced Text Filtering to filter and hide lines that don't match your search text, all in realtime as new lines are being added. Complex queries allow you to easily narrow down your results. LogFusion can automatically add new logs from Watched Folders. Just specify the folders to monitor, and LogFusion will automatically open any new log files created in those folders.
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