List of the Top 25 Free Single Sign On Software in 2025

Enhance the security of your workforce with robust and user-friendly access solutions from Cisco Duo. Our cutting-edge access security framework is meticulously crafted to safeguard every user, device, and application, allowing you to concentrate on your core activities. Enjoy secure access for all users and devices across various environments and locations, ensuring peace of mind through complete device visibility and trust. This SaaS solution seamlessly protects all applications while being straightforward to deploy, scalable, and responsive to emerging threats. Duo's access security is essential for shielding applications from compromised credentials and devices, offering extensive coverage that aids in fulfilling compliance mandates. By integrating smoothly with applications, Duo delivers flexible, user-centric security that is easy to implement and administer. For administrators, users, and IT teams alike, this is a practical solution that benefits everyone involved. Essential features such as multi-factor authentication, dynamic device trust, adaptive authentication, and secure single sign-on play vital roles in your journey towards a zero-trust framework. Each of these components contributes to a comprehensive security strategy that evolves with your organization's needs.

Auth0 adopts a contemporary method for managing identity, allowing organizations to ensure secure access to applications for all users. It offers a high degree of customization while remaining both straightforward and adaptable. Handling billions of login transactions every month, Auth0 prioritizes convenience, privacy, and security, enabling customers to concentrate on their innovative efforts. Furthermore, Auth0 facilitates quick integration of authentication and authorization processes across web, mobile, and legacy applications, featuring advanced Fine Grained Authorization (FGA) that expands the capabilities of traditional role-based access control, thereby enhancing security measures overall.

Kinde is auth for modern applications. Our powerful user authentication integrates in minutes and is free up to 10,500 MAU. Kinde was created by founders and engineers to help businesses generate more revenue, reduce costs and make lifelong loyal customers – in one place. Every day, Kinde gives our community of founders and partners across the globe, the infrastructure they need to build anything they can imagine. Every aspect of Kinde is designed to help your business grow and scale. From startup to IPO in a single platform. Social login with all of your customers favourite SSO providers, and passwordless auth to take the friction out of passwords. And when you’re ready to scale, enterprise connections, custom SAML and MFA, take the friction out of building beautiful, ultra-secure, high conversion onboarding experiences.

ADManager Plus is a user-friendly management and reporting solution for Windows Active Directory (AD) that assists both AD administrators and help desk staff in their everyday operations. Featuring a centralized and intuitive web-based interface, this software simplifies complex operations like bulk user account management and the delegation of role-based access to help desk agents. Additionally, it produces an extensive array of AD reports that are crucial for meeting compliance audit requirements. The tool also offers mobile applications, allowing AD professionals to manage user tasks conveniently from their mobile devices while on the move. This flexibility ensures that administrators can maintain productivity and oversight, regardless of their location.

Password reset tickets are a common issue that troubles both IT teams and end users alike. To maintain productivity, IT departments often prioritize more critical tasks, pushing less urgent issues, such as password resets, further down the queue. If not handled swiftly, password reset tickets can lead to significant costs for organizations. Research indicates that nearly 30 percent of all help desk inquiries stem from forgotten passwords. Large enterprises have reportedly invested over $1 million to manage and resolve issues related to password resets. Regularly updating passwords is a valuable practice that can mitigate the risk of cyberattacks stemming from compromised credentials. To bolster security, experts advise that administrators implement policies mandating regular password changes and establish expiration timelines for passwords. By doing so, organizations can enhance their overall security posture while minimizing the burden on their IT teams.

Ensure the security of your users while simplifying their experience. MIRACL Trust delivers a streamlined and secure authentication process that requires just one step, eliminating the hassle of passwords entirely. Traditional multi-factor authentication can be tedious and slow; however, MIRACL offers a faster and more secure alternative. Users can log in in just 2 seconds, with error rates significantly lower than those associated with passwords—down to one-tenth. Instead of passwords, a simple PIN is all that's needed for access. Our advanced cryptographic technology guarantees that users' data remains protected at all times. By prioritizing user experience, MIRACL Trust allows for a straightforward login process and facilitates rapid deployment of your data. With MIRACL, safeguarding your users has never been easier or more efficient.

LastPass stands out as a premier provider of password and identity management tools, gaining the trust of both individuals and enterprises across the globe. Each day, millions depend on LastPass to generate, save, oversee, and safeguard their vital credentials, ensuring they remain secure, confidential, and consistently accessible. Thanks to LastPass, users can seamlessly access their personal and professional accounts from any location, at any time, enhancing convenience in their daily lives. This level of accessibility helps users manage their online presence with confidence and ease.

FusionAuth was designed with a foundational goal of seamless integration across various applications and programming languages. Every single feature is accessible through an API, providing unparalleled flexibility to address a wide range of scenarios. It encompasses all essential functionalities and standards, including registration and login processes, passwordless authentication, multi-factor authentication (MFA), as well as SAML and OIDC support. Moreover, achieving compliance with regulations such as GDPR, HIPAA, and COPPA can be accomplished within moments. You can deploy FusionAuth on any computing environment, whether it’s a personal computer or a server. Additionally, our managed service, FusionAuth Cloud, offers a hassle-free hosting alternative, empowering users to take full control of their authentication infrastructure. With such versatility, organizations can customize their identity management solutions to fit their specific needs.

Frontegg serves as a powerful development platform that facilitates self-service, security, and enterprise functionalities through an intuitive user management interface, thus enhancing creativity and enabling unique differentiators. Beyond offering basic authentication and single sign-on via an integrated login box, Frontegg provides an Admin Portal designed to function as the centralized Settings area for users. This Admin Portal empowers users to oversee every facet of their accounts, including the ability to assign roles and permissions to individuals and teams, establish new roles, monitor audit logs, subscribe to webhooks, and much more. Moreover, Frontegg’s interfaces can seamlessly integrate into your application, acting as a customer-facing management interface suitable for personal and workspace levels alike. Additionally, Frontegg enhances your backend capabilities with comprehensive SDKs that support a variety of programming languages and frameworks, ensuring robust integration and functionality across different platforms. This versatility positions Frontegg as an essential tool for developers seeking to elevate their applications with sophisticated user management features.

A single platform offers endless opportunities to engage with both your customers and staff. Any application can be made secure with authentication capabilities. Okta enables you to swiftly develop experiences that are both secure and enjoyable. By integrating Okta's Customer ID products, you can assemble the necessary framework to ensure security, scalability, and dependability. Safeguard and empower your employees, contractors, and partners effectively. Okta’s workforce identification solutions ensure that your employees remain protected regardless of their location. You will be equipped with essential tools to streamline cloud transitions and facilitate hybrid work environments. Trusted by organizations worldwide, Okta is committed to safeguarding workforce identities while promoting seamless connectivity across various platforms. This reliability and trust make Okta a go-to choice for businesses aiming to enhance their security infrastructure.

Rublon provides a secure means for your employees to access your organization's servers, networks, and applications. By implementing multi-factor authentication, it simplifies the process of safeguarding your information and adhering to data protection laws like GDPR. Moreover, Rublon can be integrated throughout your organization, facilitating multi-factor authentication (MFA) for a wide range of platforms, including cloud applications, VPNs, servers, workstations, and both on-premise and internal applications. This comprehensive deployment ensures enhanced security across all facets of your digital infrastructure.

miniOrange provides a comprehensive suite of Identity and Access Management (IAM) solutions designed to protect identities in various environments. Their key offerings include: Single Sign-On (SSO): This powerful solution facilitates SSO across web, mobile, and legacy applications, accommodating all Identity Providers (IDPs) and authentication protocols. Multi-Factor Authentication (MFA): miniOrange stands out with its MFA solution that boasts over 15 different methods, such as Push Notifications, OTP verification, Hardware Tokens, and Authenticator Apps. Customer Identity & Access Management (CIAM): Enhance customer security while ensuring an effortless experience for users, as CIAM protects customer privacy and grants easy access to digital assets. User Provisioning: Streamline user management by automatically syncing users from local directories to miniOrange, helping to oversee the User Lifecycle for both employees and customers efficiently. Adaptive Authentication: This innovative approach addresses high-risk situations by assessing risks based on contextual elements and implementing suitable security protocols. Universal Directory: A secure directory service designed to protect sensitive information while allowing for the integration of existing directories into the miniOrange ecosystem. Together, these solutions empower organizations to maintain robust security while optimizing user experiences across all platforms.

It simplifies access for both employees and students to the applications necessary for their learning or work tasks. The ability for users to reset their passwords independently minimizes reliance on IT support. Additionally, it enhances cybersecurity measures by safeguarding user accounts from potential hacking attempts and defending against ransomware and phishing attacks. This overall approach not only streamlines processes but also instills greater confidence in the digital security framework.

Numerous developers do not realize that an incredibly powerful solution for user management, authentication, and authorization, including the creation of tailored login and signup interfaces, is entirely free and open-source: Keycloak 🤯. While it’s free, the responsibility for its setup and ongoing maintenance falls on you as your application grows, leading to various hurdles we aim to address: Awareness: Many developers and organizations remain in the dark about Keycloak's ability to fulfill all their identity and access management (IAM) needs. Cost: Numerous companies incur hefty expenses with their current Identity as a Service (IDaaS) providers. Maintenance: Firms already utilizing Keycloak often encounter difficulties in managing the related maintenance tasks and ensuring compliance with regulations for sensitive information. Skycloak offers a managed Keycloak solution that delivers enterprise-level identity and access management features without the intricacies of overseeing your own infrastructure. By integrating Keycloak’s powerful capabilities with additional tools and services, Skycloak significantly improves both security and the overall development experience for users. As a result, organizations can focus on their core objectives rather than get bogged down by IAM complexities.

Safeguard vital organizational information and improve employee productivity through OneLogin, a dependable identity and access management (IAM) platform designed specifically for modern enterprises. This solution is engineered to enhance security within organizations while simplifying the login experience, making it a perfect fit for businesses looking to adopt security protocols with ease. OneLogin offers an array of highly-rated features, such as single sign-on (SSO), a centralized user directory, user provisioning, adaptive authentication, mobile identity management, compliance reporting, and more. Utilizing these capabilities, organizations can achieve a balance of security and user accessibility. As the landscape of digital security continues to evolve, OneLogin emerges as a robust solution to address the growing demands and challenges faced by companies today. Furthermore, its user-friendly interface and comprehensive support further solidify its position as an essential tool for businesses striving for both protection and efficiency.

Descope serves as a CIAM platform designed specifically for developers and IT teams. With our intuitive no-code workflow builder and SDKs, customers can effortlessly design seamless and secure user journey flows for every interaction. By taking care of authentication methods, session management, and risk management, Descope empowers developers to focus more on their primary app projects. The platform simplifies the management of users, tenants, RBAC, SCIM provisioning, and identity federation, ensuring a hassle-free experience. Through Descope, customers can enhance user experience with passwordless authentication, bolster security with risk-based MFA, and unify user identities across all applications used in business, ultimately creating a more streamlined operational environment. This comprehensive approach not only improves security but also fosters greater user satisfaction and trust.

Univention Corporate Server (UCS) serves as an open integration platform that provides a centralized Identity and Access Management (IAM) system with Nubus through a user-friendly web portal. This portal features Single Sign-On capabilities, along with an integrated IAM system and packaged integrations that streamline the user experience. The App Center is stocked with enterprise applications, while seamless integration with Active Directory enhances functionality. UCS serves as a comprehensive platform to oversee your entire IT infrastructure, whether it exists on-premises, in the cloud, or in a hybrid setup. Nubus plays a pivotal role as the core IAM solution, efficiently managing identities, roles, and groups. Users benefit from an integrated portal that supports Single Sign-On (SSO) and self-service functionalities, granting them access to a wide array of applications and IT services. The deployment of applications is made simple and efficient through readily available integration packages and software. Designed to manage diverse and distributed IT environments, UCS supports an array of operating systems, including Windows, Mac OS, and Linux. To explore UCS further, you can download the complimentary UCS Core Edition directly from our website. This allows users to experience firsthand the robust capabilities of UCS for managing complex IT landscapes.

Aerobase serves as an open-source solution tailored for Identity and Access Management (IAM), emphasizing critical elements like identity federation, single sign-on (SSO), adaptive authentication, access control, account management, identity provisioning, and the protection of APIs and microservices while adhering to privacy regulations. This guide aims to help you kick off your experience with Aerobase by outlining the necessary steps for server installation and the use of the default database, but it does not delve into advanced deployment options. To gain a deeper understanding of the full range of features and configuration options available, it is advisable to consult the supplementary reference materials provided. By exploring these additional resources, you will significantly broaden your grasp of Aerobase's functionalities and potential applications. Engaging with these materials will equip you with the knowledge necessary for maximizing your use of the platform.

AD360 is a comprehensive identity management solution that oversees user identities, regulates resource access, enforces security measures, and guarantees compliance with regulations. With its user-friendly interface, AD360 simplifies the execution of all IAM tasks. This solution is compatible with Windows Active Directory, Exchange Servers, and Office 365, providing a versatile platform for managing identities. Users can select from various modules tailored to their needs, facilitating the resolution of IAM challenges across hybrid, on-premises, and cloud environments. From a single console, you can efficiently provision, modify, and deprovision accounts and mailboxes for numerous users simultaneously. This capability extends to managing accounts across Exchange servers, Office 365, and G Suite. Additionally, the platform supports bulk provisioning of user accounts by utilizing customizable templates for user creation and allows for easy data import from CSV files, making the process even more streamlined. Overall, AD360 is designed to enhance productivity and security in identity management.

PropelAuth provides a smooth integration experience along with user-friendly APIs designed specifically for developers, while also incorporating built-in user management features beneficial for teams engaging directly with customers. It also offers critical data insights that cater to the needs of product managers and executives. At the core of PropelAuth lies the conviction that a top-notch authentication solution should seamlessly adapt to your requirements. We furnish you with the necessary tools from the outset, empowering you to craft secure and user-friendly experiences. As you embark on the journey of onboarding users, you will likely face a detailed set of tasks and specifications. PropelAuth recognizes organizations as vital components, enabling you to leverage our user interfaces for a swift setup or to design personalized solutions through our APIs. You have the flexibility to begin with our predefined roles or to create custom ones tailored to your needs. Additionally, we streamline the process of updating existing user information as changes arise. The integration with identity providers like Okta and Azure AD is simplified, and comprehensive guides are provided to assist users in setting up and testing their configurations. You can also adjust session durations for each organization, enforce multi-factor authentication, and explore many more features. By effectively handling the intricacies of identity management, we give you the freedom to concentrate on what is truly significant. PropelAuth not only makes authentication effortless but also drives your operational productivity to new heights, ultimately allowing you to enhance user satisfaction.

Deploy enterprise single sign-on swiftly with SSOReady, which effortlessly connects to the identity services preferred by your clients. Once you set up SSOReady, you'll instantly connect with all leading identity providers. By making just two API calls, you can activate multi-tenant SSO functionality while still leveraging your current technology infrastructure. Users can be easily provisioned or de-provisioned through a single, cohesive API that works seamlessly with your customers' identity platforms. Functioning solely as an authentication middleware, SSOReady does not take ownership of your users and avoids tying you to any particular technology, thereby ensuring a more straightforward onboarding experience. This approach motivates us to foster your long-term loyalty by making it simpler for you to change providers if necessary. SSOReady enhances the integration process by requiring just a user redirect to a specific URL. Furthermore, its SDKs automatically generate this URL, allowing user redirection through any compatible method within your tech environment, which significantly boosts flexibility and usability. Ultimately, SSOReady not only streamlines your authentication procedures but also preserves your control and adaptability, paving the way for a more efficient user management experience. With its user-friendly design and robust capabilities, SSOReady stands out as an ideal solution for modern enterprises seeking efficient identity management.

Authentik functions as an open-source identity provider, streamlining all aspects of identity management into one cohesive platform, thereby serving as an alternative to services such as Okta, Active Directory, and Auth0. Authentik Security operates with a public benefit ethos, dedicated to promoting and advancing the open-source movement. By choosing a self-hosted, open-source identity provider, you prioritize security and retain authority over your most sensitive data. With authentik, the need to rely on third-party services for identity management is removed, providing you with enhanced peace of mind. You can effortlessly integrate authentik into your current infrastructure, customizing it to fulfill a variety of needs. Our robust APIs and fully customizable policies enable you to effectively automate workflows, increasing efficiency. Facilitating deployment and scaling is made simple through our prebuilt templates, which are compatible with Kubernetes, Terraform, and Docker Compose. This approach allows you to eliminate reliance on external services for critical infrastructure while protecting your confidential information from exposure to the public internet. You can leverage our pre-built workflows or choose to adjust every aspect of the authentication process with flexible templates, infrastructure as code, and comprehensive APIs, ensuring a tailored experience that fits your specific requirements. This adaptability not only allows you to customize authentik for your organization's unique demands but also significantly strengthens your security protocols in the process. Overall, authentik presents a powerful solution for organizations aiming to take full control of their identity management while fortifying their data protection strategies.

Discover the premier authentication platform that provides seamless login capabilities from virtually any location and at any moment, utilizing multiple methods such as facial recognition, fingerprint scanning, palm identification, and other supported modalities. Authx prioritizes secure, intelligent, and sometimes extraordinary authentication, offering you unrestricted access to any system or application while enabling you to change your preferred login method at your discretion. Engineered for both security and scalability, Authx is also exceptionally user-friendly—simply register once and enjoy effortless access across all platforms. Benefit from Authx's groundbreaking features that enhance your efficiency while maintaining secure authentication practices. The platform is highly dependable, backed by expert support available 24/7. In addition, Authx Mobile serves both iOS and Android users, allowing for rapid authentication via push notifications sent directly to your smartphone. Whether you favor facial, fingerprint, or palm recognition for logging in, Authx Mobile supports biometric authentication, enabling you to access your applications with a simple tap of your access card or through Bluetooth Low Energy (BLE) technology. By merging advanced security measures with ease of use, Authx stands out as an essential asset for contemporary authentication solutions, ensuring that you can securely manage your access wherever you are. It's a game-changer for anyone looking to streamline their digital interactions efficiently.

Forget the hassle of remembering, managing, or resetting multiple passwords; all your login credentials can be unified into a single encrypted authentication token. This token is user-friendly and can be easily managed by individuals, allowing for seamless access through a universal digital identity that is recognized and respected worldwide. Anonymity can be maintained if desired, ensuring user privacy. All information is safeguarded through encryption by the user with the WWPass Key, eliminating the need for costly SMS, OTPs, or any other complicated authentication methods. The WWPass Key serves to protect user identities effectively, while the WWPass MFA guarantees robust customer authentication in compliance with GDPR and NIST standards. Each individual is assigned a distinct key that grants them access to an unlimited number of accounts and services, removing the necessity for traditional passwords or usernames altogether. Your WWPass Key acts as a universal portal to the internet, facilitating logins to an ever-expanding array of online platforms. This represents a cutting-edge approach to multifactor authentication that does not rely on passwords or usernames, making secure access to any business application not only simpler but also more efficient. As more services adopt this innovative technology, users will enjoy enhanced convenience and security.

Developers can enhance their security infrastructure with essential building blocks provided by BoxyHQ. This platform features a comprehensive set of APIs designed for enterprise compliance, security, and privacy, enabling engineering teams to accelerate their Time to Market while maintaining robust security measures. With minimal coding effort, teams can integrate a variety of critical functionalities, whether they choose a SaaS model or a self-hosted solution. The available features include Enterprise Single Sign-On (SAML/OIDC SSO), Directory Synchronization, detailed Audit Logs, and a Data Privacy Vault that adheres to PII, PCI, and PHI compliance standards. By leveraging these tools, organizations can effectively safeguard their data and streamline user authentication processes.