Welcome to NLog!
NLog is a flexible and free logging platform for various .NET platforms, including .NET standard. NLog makes it easy to write to several targets. (database, file, console) and change the logging configuration on-the-fly.
NLog has support for structured and traditional logging.
The focus for NLog: high performance, easy-to-use, easy to extend and flexible to configure.
Easy to configure
Every log message can be templated with various layout renders
Fully support for structured logging
Targets are used to display, store or pass log messages to another destination. NLog can dynamically write to one of multiple targets for each log message.
There are more than 30 targets provided out-of-the-box, including:
FilesWrite logs to any number of files, with automatic file naming and archival. NLog won't lock your files by default.
Event LogWrite to event log local or remote
DatabaseStore your logs in databases supported by .NET
There are also wrapper targets which provide buffering, load balancing, failover situations, asynchronous writing and many more scenarios. The full list of targets is available on the config options page. If you didn't find the target to fit your needs, you can easily write a custom one.
- .NET 5
- .NET Framework 3.5, 4, 4.5 - 4.8
- .NET Framework 4 client profile
- Xamarin Android
- Xamarin iOs
- Windows Phone 8
- Silverlight 4 and 5
- Mono 4
- ASP.NET 4 (NLog.Web package)
- ASP.NET Core (NLog.Web.AspNetCore package)
- .NET Core (NLog.Extensions.Logging package)
- .NET Standard 1.x - NLog 4.5
- .NET Standard 2.x - NLog 4.5
- UWP - NLog 4.5
The source code is available under the terms of BSD license.