Top 5 Mainframe Forums in 2025

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The best Mainframe forums, communities, discussion and message boards curated from thousands of forums on the web and ranked by popularity, active threads, and member count.

Mainframe Forums

Here are 5 Best Mainframe Forums you should follow in 2025. Subscribe in one place on FeedSpot Reader.

1. Reddit » Mainframe computing

Forum https://www.reddit.com/r/mainframe/ + Follow
Discussion of all things Mainframe - hardware & software, programming & support.
Facebook Followers 1.9MTwitter Followers 71.1K Since Aug 2010 View Recent Threads

2. All about IBM Mainframes

Forum https://ibmmainframes.com/ + Follow
IBMMAINFRAMES.com is an independent software organization, started in 1998 in Chennai by a team of 25 unique-minded mainframe professionals to make a communication channel among worldwide mainframe programmers by providing technical support, training, and B2B software products.MORE View Recent Threads

3. IBM Mainframe Forum

Forum https://www.ibmmainframeforum.com/ + Follow
IBM Mainframe discussion Forum is a help and support site for MVS & Z/OS programmers.
View Recent Threads

4. zMainframes

Forum https://www.zmainframes.com/ + Follow
zMainframes is an online discussion community website for and by Mainframe Users where they can discuss anything related to mainframes.
Facebook Followers 765Twitter Followers 1.6K View Recent Threads

5. Mainframe Gurukul » IBM Mainframe Forums

Forum http://www.mainframegurukul.com/ibmmainframef.. + Follow
Mainframe Gurukul is a large mainframe user community. You can find COBOL,JCL,CICS, DB2, and SORT Tutorials.
Twitter Followers 40 View Recent Threads