Apache Logging Services
The Apache Logging Services project creates and maintains open-source software related to the logging of application behavior and released at no charge to the public.
A versatile, industrial-grade Java logging framework composed of an API, its implementation, and components to assist the deployment for various use cases.
Apache Log4j® Kotlin
A Kotlin-friendly interface to log against the Log4j® API.
Apache Log4j® Scala
A Scala-friendly interface to log against the Log4j® API.
A logging framework for C++ patterned after Log4j®.
A port of the Log4j® to the Microsoft .NET runtime.
Advanced Log Processing
A GUI-based log viewer intended as a companion to Log4j®.
Apache Log4j® Audit
Audit logging framework built upon Apache Log4j®.
Distributed, reliable, and available service for efficiently collecting, aggregating, and moving large amounts of log data.
Logging Services projects that are no longer actively maintained.