Logstash is part of the Elastic Stack along with Beats, Elasticsearch and Kibana. Logstash is a server-side data processing pipeline that ingests data from a multitude of sources simultaneously, transforms it, and then sends it to your favorite "stash." (Ours is Elasticsearch, naturally.). Logstash has over 200 plugins, and you can write your own very easily as well. For more info, see https://www.elastic.co/products/logstash
Pimp my Log is a prettifying log viewer for web servers. It's written in PHP, understands Apache, NGINC, IIS webserver logs, but also PHP, sshd, Tomcat, RoR and syslogs. It can render any text source, multi-line logs, supports major browsers, provides desktop tail and rotation notifications, can search and filter logs, by regex even, sort entries, mark and hide columns, works with large files. It's easy to set up due to its initial auto-configuration, still allows overriding settings, and is l