The Best Open-Source Alternatives to Okta
Are you looking for a free or self-hosted alternative to Okta? In 2026, avoiding expensive proprietary software subscriptions is easier than ever. The open-source community has built excellent privacy-friendly tools within the Authentication ecosystem. Currently, there are 1 active replacements available, with IdentityServer being one of the most prominent selections.
Quick Comparison: Okta vs. Open Source
| Criteria | Okta | OSS Replacements |
|---|---|---|
| Pricing model | Paid / Monthly Fees | 100% Free / Self-Hosted |
| Data Control | Third-party Servers | Full Ownership & Privacy |
| Customizability | Restricted by Vendor | Unlimited (Modify Codebase) |
Sort alternatives
Choose the metric that should define the list order.
IdentityServer is a comprehensive, open-source identity and access control server that enables secure authentication, authorization, and API protection for modern applications, providing a flexible, customizable alternative to proprietary solutions like Okta. By leveraging IdentityServer, developers can build robust, privacy-friendly authentication systems that maintain user control over personal data.
Frequently Asked Questions
What is the best open source alternative to Okta?
Based on GitHub community data (including star count and fork activity), IdentityServer stands out as one of the most reliable open-source replacements for Okta today.
Why should I use an open-source replacement instead of Okta?
Switching to an open-source solution ensures complete data sovereignty, protects your software environment from sudden vendor price hikes, and gives you full transparent control over your tech-stack metadata.