https://logcentral.io/en/blog/top-10-best-free-syslog-servers
- Logstash: Part of the Elastic Stack, great for data processing but requires integration with visualization tools like Kibana.
- Graylog Open: Self-managed, scalable, and includes a built-in dashboard for visualization.
- FluentD: Open-source, plugin-based, and ideal for distributed systems.
- Syslog-ng Open Source Edition: Handles multiple input formats and offers strong security features.
- Grafana Loki: Lightweight, label-based indexing with seamless Grafana integration.
- SigNoz: Unified observability tool combining logs, metrics, and traces.
- NXLog Community Edition: Lightweight and flexible with strong filtering and event correlation.
- FastVue Syslog: Windows-based, simple, and focused on log storage and archiving.
- Nagios: Primarily a monitoring tool with basic log analysis features.
- Kiwi Syslog Server Free Edition: Designed for small setups with a 5-device limit.