Support resources

Documentation & help

Developer's Guide

Each diagramming library of the yFiles product family comes with a Developer's Guide that contains information about the library's concepts and how the library's functionality is provided by the classes and interfaces.
The Developer's Guide also contains information about the included graph layout algorithms and their options and settings.

Depending on the actual library, the Developer's Guide is part of the product package either as HTML pages or in an integrated format (e.g., Visual Studio integrated help format).

API Documentation

API documentation for the classes and interfaces of each diagramming library is available

Video tutorials & help

The yWorks YouTube channel features numerous helpful videos about yFiles.
You can find separate playlists for:

  • yFiles for HTML
  • yFiles WPF
  • yFiles.NET (WinForms)
  • Knowledge Base

    The yWorks Knowledge Base is available at It contains short, product-specific technical articles written by our engineers that answer frequently asked questions.

    Email support

    Technical support for customers

    For your technical questions regarding our diagramming libraries that you cannot find an answer to in the resources above (Developer's Guide, Knowledge Base, API documentation), please get in touch with our engineers by email: support [at]
    Please include your username in the subject line of any technical support requests.

    Technical support during evaluation

    During your evaluation period, you can also write us a message in our Customer Center.

    Licensing support

    For any questions regarding the licensing/purchase of our products, our sales team will be happy to help you. Please contact them by email: sales [at]

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