
Top 10 Open Source IAM Solutions in 2026: Complete Comparison Guide
Choosing an Identity and Access Management (IAM) platform is one of the most consequential infrastructure decisions a development team can make. The right choice secures your users and simplifies your architecture; the wrong one creates years of technical debt. In 2026, the open source IAM landscape is more mature and more competitive than ever, with options ranging from full-featured enterprise platforms to lightweight, developer-first libraries. This guide compares the top 10 open source IAM solutions across features, community health, deployment complexity, and ideal use cases. Whether you are building a SaaS product, securing internal tools, or replacing a legacy identity provider, this comparison will help you make an informed decision. ...