Zowe version 2.2.0 is now available. You can download the installers for this release from the Download page. To learn what's new in this release, see the Release notes.

Zowe version 1.28.0 is now available. You can download the installers for this release from the Download page. To learn what's new in this release, see the Release notes.

*ATTENTION ZOWE EXTENDERS* The Zowe V2 Conformance Program is OPEN! Visit the Zowe Conformance Program site for Testing Criteria and Participation Forms Learn More

Did you miss the 6/22 Zowe Quarterly Update Webinar? View the replay here: and participate in the Zowe V2 survey here Learn More

Open, Simple, Familiar

Combining the past and the present to build the future of mainframe

Zowe is an integrated and extensible open source framework for z/OS. Zowe, like Mac OS or Windows, comes with a set of APIs and OS capabilities that applications build on and also includes some applications out of the box.

Zowe offers modern interfaces to interact with z/OS and allows you to work with z/OS in a way that is similar to what you experience on cloud platforms today. You can use these interfaces as delivered or through plug-ins and extensions that are created by clients or third-party vendors.

Zowe is composed of several components, each improving the learning ability, accessibility, and possibility of mainframe development.

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What would you like to do with Zowe?

Learn how Zowe works and what it can do for you

Get started with installing and using Zowe

Build the next generation of mainframe tooling on top of Zowe

Contribute to the open source community developing Zowe

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Upcoming and recent events

SHARE Virtual
August 09 - August 14
The SHARE virtual conference (#SHAREvirtual21) is hosting its summer session on August 9-13. There will be more than 100 live sessions and 100 on-demand presentations focused on a variety of topics related to mainframes. Several Open Mainframe Project community leaders...
SHARE Dallas 2022
March 27 - March 31
SHARE 2022 will take place on March 27-30 in person in Dallas and virtually. To register for the event or to learn more, visit As always, Open Mainframe Project will have a presence at the event as many of...
VM Workshop 2021
June 10 - June 12
The annual VM Workshop, which originally was planned for in-person at Ohio State University, will now take place virtually on June 10-11. Open Mainframe Project will be represented at the conference as several community leaders will be giving presentations. Check...

Zowe components

Zowe Application Framework

A web user interface (UI) that provides a virtual desktop containing a number of apps allowing access to z/OS function. Base Zowe includes apps for traditional access such as a 3270 terminal and a VT Terminal, as well as an editor and explorers for working with JES, MVS Data Sets and Unix System Services.

Code on GitHub |  Connect on Slack |  Learn more |  View Tour

API Mediation Layer

Provides a gateway that acts as a reverse proxy for z/OS services, together with a catalog of REST APIs and a dynamic discovery capability. Base Zowe provides core services for working with MVS Data Sets, JES, as well as working with z/OSMF REST APIs. The API Mediation Layer also provides a framework for Single Sign On (SSO).

Code on GitHub |  Connect on Slack |  Learn more

Zowe CLI

Provides a command-line interface that lets you interact with the mainframe remotely and use common tools such as Integrated Development Environments (IDEs), shell commands, bash scripts, and build tools for mainframe development. It provides a set of utilities and services for application developers that want to become efficient in supporting and building z/OS applications quickly. The CLI provides a core set of commands for working with data sets, USS, JES, as well as issuing TSO and console commands.

Zowe CLI Plug-ins: Secure Credential Store Plug-inCICS Plug-inDb2 Plug-inFTP Plug-inIMS Plug-inMQ Plug-in

Code on GitHub |  Connect on Slack |  Learn more

Zowe Explorer

A Visual Studio Code extension that modernizes the way developers and system administrators interact with z/OS mainframes. Zowe Explorer lets you interact with data sets, USS files, and jobs that are stored on z/OS. The extension complements your Zowe CLI experience and lets you use authentication services like API Mediation Layer.

Code on GitHub |  Connect on Slack |  Learn more

Zowe Client SDKs (under development)

Provides access to a set of programmatic APIs that you can use to build client applications or scripts that interact with z/OS.

Zowe SDKs: Node SDKPython SDKSwift SDK

Connect on Slack |  Learn more

ZEBRA (Incubator)

Provides re-usable and industry compliant JSON formatted RMF/SMF data records, so that many other ISV SW and users can exploit them using open-source SW for many ways.

Code on GitHub |  Connect on Slack |  Learn more |  Take a tour

Zowe IntelliJ Plugin (Incubator)

A plugin is dedicated to facilitate working with z/OS datasets through providing a possibility to work with them in any IntelliJ IDE. The plugin provides such abilities as working with z/OS datasets and USS files, exploring and managing JES Jobs.

Code on GitHub |  Connect on Slack |  Learn more | 

Zowe Chat Incubator

An incubator focused on working with the mainframe from popular chat clients such as Slack® , Microsoft Teams® , and Mattermost® . Whether you're collaborating with your team to diagnose issues, need a quick read on the state of a system, or want push notifications from your monitoring tools, Zowe Chat will simplify those experiences and integrate directly into your chat clients. Stay tuned, more to come!

Code on GitHub |  Connect on Slack 

Zowe by the numbers

From Zowe blog

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