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Logging log4j2

Apache Log4j is a versatile, feature-rich, efficient logging API and backend for Java.

From apache·Updated May 31, 2026·View on GitHub·

//// Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at The project is written primarily in Java, distributed under the Apache License 2.0 license, first published in 2013. It has gained significant community traction with 3,607 stars and 1,724 forks on GitHub. Key topics include: apache, api, java, jvm, library.

Latest release: rel/2.26.02.26.0

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Licensed to the Apache Software Foundation (ASF) under one or more
contributor license agreements. See the NOTICE file distributed with
this work for additional information regarding copyright ownership.
The ASF licenses this file to You under the Apache License, Version 2.0
(the "License"); you may not use this file except in compliance with
the License. You may obtain a copy of the License at

     http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

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Apache Log4j is a versatile, industrial-grade Java logging framework composed of an API, its implementation, and components to assist the deployment for various use cases.
For further information (support, download, etc.) see https://logging.apache.org/log4j[the project website].

[#development]
== Development

Looking for build instructions, branching scheme, and other developer resources?
See https://logging.apache.org/log4j/2.x/development.html[the Development page] at the website.

Contributors

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This article is auto-generated from apache/logging-log4j2 via the GitHub API.Last fetched: 5/31/2026