Picking an IAM solution solely based on the feature set is no longer an option. You need to think of the broader requirements such as scalability, performance, and usability. Close sourced IAM solutions restrict your ability to adapt to your unique requirements and the total cost of ownership tends to be steep.That's why you need to consider open source for IAM.
Freedom to make business decisions free from vendor or platform lock-in
Broader extensibility and customization for unique use cases
Low maintenance and support costs because the products are free to use
By 2021, open-source IAM components will be used for one or more IAM functions by 30% of organizations, up from 20% at the end of 2016."
Gartner,
By 2022, more than 98% of IT organizations will leverage open source technology in their mission-critical IT portfolios, including many cases where they will be unaware of it because it is embedded within third-party solutions."
Gartner,
Open source, not just open core
Ease of extension and customization
Integration with heterogeneous technology stacks
Ease of integration with new applications in the security ecosystem
Vendor and platform lock-in implications
Cloud vs on-premise deployments and interconnectivity needs
Ensuring that you can incorporate latest algorithms and security protocols when they emerge
Open standards support
