Fluentd is described as 'Fully free and open-source log management tool that simplifies your data collection and storage pipeline. It eliminates the need to maintain a set of ad-hoc scripts' and is a web log analyzer in the network & admin category. There are more than 25 alternatives to Fluentd for a variety of platforms, including Linux, Windows, Web-based, Self-Hosted and Mac apps. The best Fluentd alternative is Datadog. It's not free, so if you're looking for a free alternative, you could try Graylog or Splunk. Other great apps like Fluentd are Grafana Loki, Logstash, Prometheus and Papertrail.