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for Smallworld™

MDT® is an IDE for development
of Smallworld applications.
It’s the fastest and smartest way
to deliver your Smallworld

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Magik code editing

code assist, templates, hyperlinks, validation

Integrated debugger

breakpoints, inspections, stepping through code

Fast and effective development

managing GIS sessions, console, code assist, command history

Multiplatform ability

working with Magik, Java, HTML, XML in one environment

Video Tutorials

A set of short Migration FAQ tutorials to help you in faster and more comfortable transfer from Emacs to MDT.

All crucial aspects are explained so you can easily migrate your sessions, sources and configurations.


Update: MUnit 3 Support Plug-in 1.1.3

2014-12-02 13:09

It appears that there were a few issues with the latest MUnit 3 Support plug-in (version 1.1.2). We have just released an update resolving all problems. Please update the plug-in through the update site ( or download the ZIP archive from our sites.

33% Year-End Discount!

2014-11-04 11:33

Starting today till the end of the year 2014 we are launching Year-End Discount for any MDT license! Every order placed before the 31st of December is now 33% off.

Save one-third of the MDT license price. Do not wait and end this year having the best and only Magik Development Tools!

Check the Price List and contact us at sales(at)

MDT 3.5 is now available!

2014-10-01 15:11

This release includes some major changes:

  • Compatibility with Eclipse 4.x (Eclipse 3.6 & 3.7 no longer supported)
  • Discontinued support for Java 6 - Java 7 or higher is required
  • Possibility to customize Magik containers presentation (e.g. show products or modules names)
  • Enhanced drag & drop feature support for Magik elements (e.g. loading to session, adding to load list, etc.)

Important: In case of using MDT product distribution (standalone version), we strongly recommend reinstalling the whole application (base platform has been switched from Eclipse 3.8 to Eclipse 4.4). In case you update your environment, remember to include all dependent plug-ins from MDT family.

Read more about this version and its features in What’s new pages. For more detailed info refer to the List of Changes.

MDT Magazine, Spring 2014

2014-06-05 10:19

Check out the new issue of MDT Magazine, Spring 2014. Read an interview with Dirk Weidemann from Mettenmeier, learn about the genesis and implications of the new coming Magik on Java™ technology, a.k.a. "Smallworld 5" and read a short project report by one of our key Project Managers.


GE is pleased to see third party applications such as MDT that enable customers to customize applications on Smallworld. We will continue to closely support companies like ASTEC in support of our position as a leading provider of geospatial solutions.

Martin Ansell, General Manager Smallworld
GE Energy

MDT brings a modern environment to Magik development. The most effective aspect is the enormous increase in efficiency and productivity.

Jan Kiefer, Software Developer
NIS AG, Switzerland

MDT Magazine Issue 6

Magazine for Smallworld™ Magik Developers

  • New Features
  • Magik on Java™
  • Project report
  • Interview - Mettenmeier
  • Trainings

MDT Newsletter