Welcome to PUB400, a free and public server running IBM i 7.5 for everyone. With your own user profile, 500MB of disk storage, and two private libraries, you can explore programming in CL, RPG, SQL, COBOL, and even learn about other web technologies like node.js. We have an active community of users, with an average of 25 new users per day. However, there are some rules to follow, such as no creating multiple users or running commercial environments, limitations on connections from a single IP, and no regular backups. PUB400 has been serving the IBM i community for almost 23 years, providing a learning and testing environment for over 40,000 users worldwide. If you love PUB400, don’t forget to nominate Holger Scherer as a Community Champion at IBM Champions.
https://pub400.com/