The best log management tools collect logs from your servers, apps and cloud services into one searchable place, so you can troubleshoot faster and investigate security incidents later: developers often want a hosted tool that's quick to set up, while security teams want long retention and the option to grow into SIEM. Eleven tools follow in no particular order.
Logs are the black box recorder of your systems. When something breaks, or someone gets in who shouldn't, they're usually the only record of what happened. The trouble is that they're scattered across servers, apps and cloud services, each in its own format.
Log management tools bring them together. The eleven below are listed alphabetically and in no particular order, from open source projects to cloud platforms, and every description comes from the vendor's own site, read this week. For the bigger security picture, my guide to building a strong cybersecurity culture is a helpful read.
Log management tools side by side
In the free plan column, Yes means the tool's own site names a free plan, a free edition or an open source version. Trial only means a time-limited trial. Not stated means the pages I read named neither, even where there's a button inviting you to try it or book a demo.
| Tool | Type | Good for | Free plan |
|---|---|---|---|
| Axiom | Machine data platform | Large volumes of event data | Not stated |
| Better Stack | OpenTelemetry-native log management | Logs alongside uptime and incidents | Not stated |
| Coralogix | Telemetry lake for observability | Large log volumes with smarter analysis | Trial only |
| Grafana Loki | Open source log aggregation | Teams already using Grafana dashboards | Yes |
| Graylog | Log management and SIEM | Self-hosting with a free open edition | Yes |
| Loggly | Log analysis and management | Simple hosted log search | Trial only |
| Logz.io | AI-powered observability | Moving off self-run open source logging | Trial only |
| Mezmo | Open source SRE agent and telemetry | AI help for production operations | Yes |
| Papertrail | Hosted log management | Quick set-up for small apps | Trial only |
| Sematext Logs | Log management with chart building | Logs plus monitoring from one vendor | Trial only |
| Sumo Logic | Cloud log management and SIEM | Security and operations on one platform | Trial only |
Eleven log management tools to consider
Axiom
Best for: Developer teams that want to store and query large volumes of logs and events on a modern machine data platform.
Better Stack
Best for: Small teams that want OpenTelemetry-native log management in the same place as their uptime checks and incident alerts.
Coralogix
Best for: Engineering teams that want logs and other telemetry analysed from a telemetry lake built for smarter observability.
Grafana Loki
Best for: Teams already on the Grafana stack that want an open source log aggregation system to sit next to their dashboards.
Graylog
Best for: IT and security teams that want central log management that can grow into security monitoring, starting with the free Graylog Open.
Loggly
Best for: Small development teams that want hosted log search and analysis without building and running their own logging stack.
Logz.io
Best for: Teams that started on open source logging and now want a managed, AI-assisted observability platform instead.
Mezmo
Best for: Site reliability teams that want an AI agent working with production log and telemetry data when things go wrong.
Papertrail
Best for: Developers who want hosted log management that's easy to set up for a handful of servers and apps.
Sematext Logs
Best for: DevOps teams that want log management with chart building, alongside monitoring from the same smaller vendor.
Sumo Logic
Best for: Organisations that want cloud log management, monitoring and SIEM tools from one established cloud-native vendor.
What log management does
It collects log lines from many sources, parses them into fields you can search, stores them for a set period and lets you search, chart and alert on them. Many tools now handle metrics and traces too, under the wider name of observability.
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Security information and event management, or SIEM, sits on top of that, looking for attack patterns across your logs. Some log tools grow into SIEM; others stay focused on helping developers fix problems.
How long to keep logs
The NCSC says it can be months before incidents are detected, so it recommends storing your most important logs for at least 6 months. It also advises planning for storage to roll over, so full disks don't bring the logging service down.
Retention varies a lot between plans, so check how long each tool keeps logs searchable on the plan you'd choose, and whether older logs can move to archive storage you can still restore and search when you need them.
Logs and metrics work as a pair, so see server monitoring tools.
Questions to ask a log management vendor
- Which sources can you collect from without custom work?
- How long are logs searchable, and how long can we archive them?
- Do you support OpenTelemetry for logs, metrics and traces?
- Can we filter or drop noisy logs before they're stored?
- How do alerts work, and can they reach our chat tools?
- Can the tool grow into security monitoring later?
Once logs are flowing, threat intelligence platforms show what to look for.
Signs your logging needs work
- Logs vanish after a few days. Incidents found later have no record.
- Fixing bugs means logging into servers. One by one.
- Nobody can see sign-in history. Admin changes go unrecorded.
- Disks fill up with logs. And services fall over.
Do you make log management tools? Tool makers can ask to be considered for a featured place on this list.
My plain advice on choosing a log management tool
Work out which logs you'd need on your worst day: sign-ins, admin changes, firewall and VPN logs, and the errors from your main app. Make sure those are collected and kept for at least the period the NCSC suggests before you worry about anything else.
Then think about who searches the logs. Developers want speed and a friendly search bar; security teams want retention, alerts and an audit trail. Pick the tool that suits the people who'll use it most. For incident readiness more widely, see my notes on staying safe from cybersecurity threats.
Frequently asked questions
What is log management?
It's the collection, storage, searching and analysis of log data from servers, applications, devices and cloud services in one place.
How long should I keep logs?
The NCSC recommends storing your most important logs for at least 6 months, because incidents can take months to detect.
What's the difference between log management and SIEM?
Log management collects and searches logs. SIEM analyses them for security threats and usually adds correlation, alerting and case handling.
Is there free log management software?
Yes. Open source log tools are free to self-host, and several hosted services offer free trials.
What is OpenTelemetry?
It's an open standard for collecting logs, metrics and traces, which makes it easier to switch between observability tools.
Do small businesses need log management?
If you run your own servers or apps, yes. Even a small set-up benefits from having sign-in and error logs in one searchable place.
