log.io is described as 'Harvesters watch log files for changes, send new log messages to the server, which broadcasts to web clients. Log messages are tagged with stream, node, and log level information based on user configuration' and is a Log Management tool in the file management category. There are more than 25 alternatives to log.io for a variety of platforms, including Linux, Web-based, Windows, Mac and Self-Hosted apps. The best log.io alternative is Datadog. It's not free, so if you're looking for a free alternative, you could try Graylog or Prometheus. Other great apps like log.io are Sentry, Logstash, Splunk and Grafana Loki.