Portainer CE is the "free" version of portainer you can just download and use. This is opposed to the enterprise edition, EE, which requires a license key. The big differences are the automatic container upgrades, as well as better and more diverse SSO options.
Portainer Community Edition (CE) is open source software, designed for individuals (home labs). Portainer Business Edition is a commercially supported product that includes features for security, access management, and auditing, making it more suitable for enterprise use.
You can learn more about the additional features in Portainer Business here. https://www.portainer.io/portainerbusiness
Portainer is a universal container management platform to deploy, configure, troubleshoot, and secure containerized applications across cloud, data center, edge, and Industrial IoT use cases. Portaine
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