Features
Everything you need to learn the mainframe.
A guided tutor, a full simulated workbench, and the credentials to prove it. Here's what's inside Mainframe101.
How you learn
A tutor, and a job to do.
Zed, your tutor
Zed explains what the system is doing and why it matters before the how, checks you understood, and answers anything in plain words. You're never left staring at a blank green screen.
A job, not exercises
You start as a new analyst at ZedBank, a fictional bank running on the mainframe. Role-based tracks take you from your first command through JCL, COBOL, DB2, CICS, RACF and REXX.
Active recall built in
Quizzes and checks are woven into the work, not bolted on at the end, so what you learn actually sticks.
Guided every step
Quick wins first, real depth after. The path follows the order the work demands, and your role grows as you go.
The lab
A real workbench, safely simulated.
A full terminal workbench
Datasets, the editor, live jobs, and the spool, all in the browser. The real tools, without a real mainframe.
One system, every subsystem
A single simulated z/OS-style environment covering every subsystem you'll meet on a real one.
Nothing can break
Everything is simulated. Experiment freely: there's no live system to bring down and no data at risk.
The tools you'll actually use
Work with IDCAMS, SORT, IEBGENER, IEBCOPY and the utilities real teams reach for every day.
Access
Open a URL. That's the setup.
No installs, ever
No installs, no VPNs, no certificates, no Zowe. The barrier that stopped everyone is gone: open a URL and you're in.
Pick up where you left off
Progress saves as you go, every lesson, track and job you touch. Close the tab and resume exactly where you were.
Lessons read aloud
Voice mode reads lessons aloud at your own pace, so you can listen as you work.
Legible by default
Adjustable text weight, reduced-motion support, and keyboard-friendly throughout.
Make it yours
Re-theme the product accent to the colour you like best.
What you earn
Credentials you keep.
OpenBadge 2.0 credentials
Earn verifiable OpenBadge 2.0 credentials you can keep and share with employers.
Printable certificates
Finish a track and get a certificate worth showing.
Milestone badges
Collect milestone badges that mark your progress along the way.
See it for yourself.
Join the private beta. Individuals, educators, and organisations all welcome.