Otter is described as 'enables DevOps best practices by providing a visual, dynamic, and intuitive ui that shows, at-a-glance, the configuration state of all your servers'. There are seven alternatives to Otter for a variety of platforms, including Linux, Mac, Windows, Online / Web-based and BSD. The best alternative is Ansible, which is both free and Open Source. Other great apps like Otter are Salt (Free, Open Source), Puppet (Freemium, Open Source), Chef (Free, Open Source) and Cfengine (Free, Open Source).
Chef is an open source systems integration framework built to bring the benefits of configuration management to your entire infrastructure. You write source code to describe how you want each part of your infrastructure to be built, then apply those descriptions to your servers.
Ensure compliance Define the desired state and configuration of your IT infrastructure, and CFEngine will automatically ensure that it complies. Automate Automatically roll out updates and changes to every node in your infrastructure, whether you have 50 or 50,000 nodes.
The CTO.ai platform allows you and your software development team to implement DevOps automations in minutes rather than days by runnings "Ops" in Slack and the CLI. Leverage a curated inventory of DevOps workflows to adopt int your development cycles.