IBM i (AS/400) Green Screen UI Modernization

Give Your IBM i Green Screens a Modern Web GUI That’s Accessible from Any Device

Presto is the fastest way to give your IBM i green screens and new RPG programs a modern web GUI using the 5250 datastream or RPG Open Access. It also gives you endless opportunities to add new functionality.

What You Can Do With Presto

Modern Web GUI
Keep your IBM i relevant in the eyes of end users and management by giving your existing green screens and new RPG programs a web GUI.

New Functionality
Increase productivity by adding drop down boxes, tabs, datepickers, images, charts and more to your web-enabled screens.

Mobile Access
Access all of your modernized IBM I green screens internally or remotely from iPads, iPhones, and other tablets and smartphones.

How Presto can help you:


Intuitive Web GUI
Presto transforms your green screens into modern, intuitive web pages that increase user satisfaction and reduce training costs.

Immediate Results
Your existing green screens are instantly accessible as modern web pages without requiring changes to your source code.

Easy Deployment and Access
Users only need a browser to access the web-enabled screens internally or remotely from desktops or mobile devices.

End User Productivity
Improve workflows by enhancing screens with tabs, drop downs, auto completes, datepickers and more without coding HTML.

Leverage and Future-Proof IBM i
Leverage existing applications to meet current business needs while providing the agility to take advantage of future technologies, such as AI.

Integrate with Other Technologies
Provide a more seamless end user experience by integrating with additional web applications and data sources.

Presto key technical features:

Out of the Box Rendering

On-the-fly HTML rendering – no source needed
Auto detects subfiles, function keys and more
Customizable skins and other global settings

Visual Editor

Add date pickers, images, tabs and more
Include links to PDF, Excel and other files
Use SQL for charts, auto completes and drop downs


Add date pickers, images, tabs and more
Include links to PDF, Excel and other files
Use SQL for charts, autocompletes and drop downs

Mobile, Portals and Beyond

Responsive screens optimized for desktop/mobile
Optional Nexus Portal for secure, menu-based access
Integrate with other web apps using links and APIs