# Run with the Jar file
You need Java version 8+ (or 1.8+) to run Komga. Check your version with
You can run Komga from the fat
jar file. You can download them in the releases (opens new window) section.
In order to run Komga, use the following command (replace
x.y.z with the actual version number):
java -jar komga-x.y.z.jar
Once Komga is started, you can access the web interface.
On Windows, use
javaw instead of
java to launch Komga without a command prompt window appearing.
# Increase memory limit
By default the
java process will be limited in the maximum amount of memory (RAM) it can use, usually 1gb. If you encounter some
OutOfMemoryException in the logs you probably need to increase the maximum memory Komga can use.
To do so, you can use the
-Xmx<limit> command line flag, where
<limit> can be any amount like
4g etc. For example to run Komga with a maximum of 4gb of memory:
java -jar -Xmx4g komga-x.y.z.jar
To update just stop Komga, then start it with the latest