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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.


MDT 3.4.1 is now available!

2014-04-23 13:11

This release includes:

  • refactoring and changes needed to support the Magik on Java™ plug-in (coming soon). This plug-in will bring the basic support for already available technology preview of GE's "Magik on Java" initiative.
  • a couple of minor and major fixes and improvements

If you would like to know more about the Magik on Java technology read the technology preview or follow the guide.

Read the full List of Changes. We strongly recommend to update your environment!

MDT White Paper Issue 2014

2014-02-26 08:57

The new updated White Paper has been released. See the updated secions and screenshots for the present overview of MDT's tools and functionalities.

Click here or go to section Support/Documentation.

MDT at GE's Americas Software Summit 2014

2014-01-09 13:21

We will be visiting this year's Americas Smallworld conference organized by GE Digital Energy. The event will take place in Orlando, Florida between 10-14 February.

You will be able to find us at our booth (#10). A great opportunity to meet up with our friends and partners from Americas continent.

On top of that we invite you all to a myth-busting presentation "We would switch from Emacs but MDT cannot..." where we want to discuss myths surrounding MDT over the years. The presentation will be held on the second day of the conference: Tuesday, from 2:00 to 2:45 P.M. Our designated presenter is Błażej Sytar.

Recording: "Magik on Java" quick peek + Update on MDT 3.4 Webinar

2013-12-05 09:49

For all those who missed the yesterdays webinar. Download the recording via the URL below.

Download the recording >>


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

Read MDT Magazine, Spring 2013

Magazine for Smallworld™ Magik Developers

  • New Features
  • Gislet - GIS mobile
  • MDT Users Worldwide
  • Interview - CenHud

MDT Newsletter