Kiwi Syslog Server
Splunk
nxlog
Graylog
rsyslog
Nagios Log Server
ManageEngine EventLog Analyzer
syslog-ng OSE
JavaScript
Python
Java
PHP
Rust
Haskell
Typescript
Elixir
Splunk - Splunk's operational intelligence platform helps unearth intelligent insights from machine data.
Python - Python is a clear and powerful object-oriented programming language, comparable to Perl, Ruby, Scheme, or Java.
nxlog - NXLog offers log management solutions for companies of all sizes.
Java - A concurrent, class-based, object-oriented, language specifically designed to have as few implementation dependencies as possible
Graylog - Graylog is an open source log management platform for collecting, indexing, and analyzing both structured and unstructured data.
PHP - A popular general-purpose scripting language that is especially suited to web development