Heirloom® Overview

Mainframe modernization is a strategic imperative as enterprises seek to enhance their agility. Heirloom is a state-of-the-art mainframe migration solution for migrating online & batch mainframe workloads as cloud-native applications to any cloud.

It is a fast & accurate compiler-based approach that delivers strategic value by creating cloud-agnostic applications using an industry-standard cloud-native deployment model.


How It Works In 60 Seconds

Think you’ve heard it before? Got 60 seconds? Watch the video below to see how Heirloom delivers mainframe migration at compiler speed.

See For Yourself

You can download the Solution Brief or review some of our mainframe modernization Case Studies along with customer testimonials.

Fast & Accurate

Heirloom's core technology is compiler-based and capable of migrating very large complex mainframe applications built from millions of lines of code in minutes. The resulting application uses the JVM for execution and is guaranteed to match the function & behavior of the original application exactly.

Complete Solution

Mainframe applications are dependent upon key subsystems such as transaction processors, job control, file handlers, and resource-level security & authentication. Heirloom faithfully replicates all of these major subsystems by providing an equivalent (for example, JES/JCL) or a layer that provides a seamless mapping to an open systems equivalent (for example, Open LDAP for security).

Built for Cloud

Heirloom is the only mainframe migration solution that was designed and built for the cloud from the start. The resulting cloud-agnostic applications are deployed as cloud-native applications that dynamically scale on high-availability platforms.


Heirloom Computing works with industry-leading Global Systems Integrators and Cloud Service Providers to deliver comprehensive application modernization projects for our Global 2000 clients.

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