Apache Nutch is an extensible and scalable web crawler

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Apache Nutch WebApp README

For the latest information about Nutch, please visit our website at:


and our wiki, at:



The Nutch WebApp is built using the Apache Wicket Java web framework and Spring.

Running locally

N.B. Currently, you must have a running Nutch REST Server on the same host.

You can easily run the WebApp by executing the following

% mvn jetty:run

If you want to run the WebApp in a Jakarta Servlet container i.e. Apache Tomcat, then run the following

% mvn clean install -DskipTests
5 cp target/nutch-webapp-1.0-SNAPSHOT.war $CATALINA_HOME/webapps

You can then access the WebApp on the Tomcat host on port 8080.


To contribute a patch, follow these instructions (note that installing Hub is not strictly required, but is recommended).

0. Download and install hub.github.com
1. File JIRA issue for your fix at https://issues.apache.org/jira/projects/NUTCH/issues
- you will get issue id NUTCH-xxx where xxx is the issue ID.
2. git clone https://github.com/apache/nutch-webapp.git
3. cd nutch-webapp
4. git checkout -b NUTCH-xxx
5. edit files (please try and include a test case if possible)
6. git status (make sure it shows what files you expected to edit)
7. Make sure that your code complies with the [Nutch codeformatting template](https://raw.githubusercontent.com/apache/nutch/master/eclipse-codeformat.xml), which is basially two space indents
8. git add <files>
9. git commit -m “fix for NUTCH-xxx contributed by <your username>”
10. git fork
11. git push -u <your git username> NUTCH-xxx
12. git pull-request

IDE setup

Generate Eclipse project files

mvn eclipse:eclipse

and follow the instructions in Importing existing projects.

IntelliJ IDEA users can also import Eclipse projects using the “Eclipser” pluginhttps://plugins.jetbrains.com/plugin/7153-eclipser), see also Importing Eclipse Projects into IntelliJ IDEA.