IBM WebSphere Application Server Migration Toolkit

The IBM® WebSphere® Application Server Migration Toolkit is a suite of tools and knowledge collections. It enables your organization to quickly and cost-effectively migrate to the latest releases of traditional WebSphere Application Server and Liberty. You can migrate from a previous version of WebSphere Application Server or from competitive application servers, such as Apache Tomcat Server, JBoss Application Server, Oracle® Application Server, and Oracle WebLogic Server.

Whether you are moving your workloads to a later release on-premises or exploring cloud platforms, tools are available to help. Learn more about these tools and find additional resources in the Migration article in the WASdev Developer Center.

New and noteworthy

The WebSphere Application Server Migration Toolkit, which is updated quarterly, was updated in June 2016 to support WebSphere Application Server V9. For information about the most recent enhancements to the tools, see the Migration landing page and the What is the Migration Toolkit for Application Binaries? article. For the latest versions of the migration tools, go to the migration toolkit downloads page in the WASdev Developer Center.

Included in the migration toolkit

The migration toolkit includes tools for planning, development and administration.


  • Knowledge Collection: Migration planning for WebSphere Application Server
    Use the publications on this site to plan your migration from previous versions of WebSphere Application Server to WebSphere Application Server V8, V8.5 or V9.
  • Migration toolkit for Application Binaries
    Evaluate applications quickly with this command-line tool using application archive files. You can evaluate the right-fit platform or perform detailed migration analysis for moving to Liberty and between traditional WebSphere releases either on-premises or in the cloud.
  • WebSphere Migration Discovery Tool
    Thinking about migrating to the IBM WebSphere platform? You can use this web-based tool at no charge to help gain insight into the size and scope of your migration project. This tool works for migrations to WebSphere Application Server, WebSphere Application Server Liberty, and WebSphere Application Server Liberty on IBM Bluemix®. Learn more about the tool in this IBM Advantage Blog post.
  • WebSphere Application Server V8.5 Migration Guide
    Use this IBM Redbooks publication to plan your migration from competitive application servers to WebSphere Application Server V8.5.


  • WebSphere Application Migration Toolkit
    This Eclipse-based tool helps you migrate application source code from WebSphere Application Server V5.1 through V9 to Liberty or traditional WebSphere Application Server V8 through V9. It also helps to migrate applications from Apache Tomcat Server, JBoss Application Server, Oracle Application Server, and Oracle WebLogic Server to WebSphere Application Server V8 through V9 or Liberty. And, it helps to migrate an Apache Tomcat Server configuration to Liberty.
  • Migration Toolkit for Application Binaries
    If you do not use Eclipse for development, this command-line tool provides the same detail for traditional WebSphere version-to-version migrations and traditional WebSphere version migrations to Liberty.


For more information about migrating between versions of WebSphere, see the WebSphere Application Migration tab and the traditional WebSphere Configuration Migration tab. And, for details about migrating from third-party application servers, see the Competitive Migration tab.