Largest Provider of Commercial Smalltalk
Cincom is one of the largest commercial providers of Smalltalk, with twice as many partners and customers than other commercial providers.

Tom Nies

Cincom® VisualWorks® 9.1

It is our pleasure to bring you the current major release of Cincom VisualWorks 9.1. Both Cincom® ObjectStudio® and Cincom VisualWorks share the same core libraries and foundation, which means enhancements on the foundation improve both products. This release has very significant and meaningful upgrades for the Cincom Smalltalk Foundation and for each product.

VisualWorks is an enterprise-class, multilingual, cross-platform, application development and delivery platform that’s used by worldclass companies in areas such as semiconductor manufacturing, shipping, financial risk management, insurance, banking, government, education and healthcare.

The VisualWorks suite is the premiere Smalltalk environment and has an unrivaled live and interactive development environment that is highly effective and productive.

VisualWorks includes components for any type of work that your team might contemplate—Client, Server, Client-Server, Distributed, Grid or Web—and allows you to build them with superior development tools.

VisualWorks can work or integrate with most standard technologies such as internet protocols (HTTP, HTTP/2, FTP, POP3, etc.), secure protocols (TLS, HTTPS), most relational databases (RDBs), sockets, COM, Web services (WS*), Web standards (HTML5, JavaScript, Ajax, JSON, WebSockets), MQSeries and more. This allows VisualWorks to seamlessly plug into an enterprise infrastructure—an important feature for IS shops that need to integrate multiple applications from multiple sources.

Key VisualWorks Features

High-Fidelity Skins (UI Skinning)
  • Native rendering combined with customizable widgets
  • Native rendering on Windows and MacOS
  • Allows custom looks to be created by developer
  • Windows, Mac, Linux, Unix
  • See the available platforms listed
Enhanced Text A few areas of new capability in text handling include:
  • Annotations
  • Sparklines
  • Adornments
  • Lists

VisualWorks is instantly portable across a wide range of platforms (32 & 64 bit) including:

  • Windows (10)
  • Windows Server® (2016/2019)
  • MacOS (11 Big Sur x86 *)
  • Linux (x86) (RHEL 6.x+)
  • AIX 7.x


  • Easy cross-platform applications
  • AppeX EcmaScript ES6 support
  • UI Skinning on Windows/MacOS
  • New text
  • Internationalization
  • Seaside Web framework
  • Web services


VisualWorks provides 64-bit VMs on most of our platforms including Windows 64-bit. The 64-bit solutions have a much larger addressable memory, allowing a much larger object space, very large collections and other optimizations for 64-bit.


VisualWorks includes an extensive locale system based upon CLDR (Unicode Consortium’s Common Locale Data Repository) locales. VisualWorks now supports bi-directional content for sophisticated internationalization solutions.

VisualWorks Project Manager

The Project Manager allows easy location and launching of projects as well as new project creation.

GUI Tools

UI-Skins allow flexibility in widget display, with native rendering skins for Windows and MacOS, emulated skins and customizable skins to create your own custom look. The windows emulated skin allows a familiar look on any platform.