Best Free Single Sign On Software of 2025

Secure your workforce with powerful, simple access security. We are Cisco Duo. Our modern access security system is designed to protect all users, devices, applications, so you can focus on what you do best. Secure access for all users and devices, in any environment, from any location. You will enjoy the peace of mind that only total device visibility and trust can provide. A SaaS solution that natively protects all applications and is easy to deploy, scaleable and quick to respond to threats. Duo's access security protects all applications from compromised credentials and devices. It also provides comprehensive coverage that helps you meet compliance requirements. Duo integrates natively with applications to provide flexible, user friendly security that is easy to implement and manage. It's a win-win-win for administrators, users, and IT staff. Multi-factor authentication, dynamic device trust and adaptive authentication are key components of your zero-trust journey. Secure SSO is also a part of the mix.

Auth0 takes a modern approach to Identity and enables organizations to provide secure access to any application, for any user. Auth0 is highly customizable, and simple yet flexible. Safeguarding billions of login transactions each month, Auth0 delivers convenience, privacy, and security so customers can focus on innovation. With Auth0, you can rapidly integrate authentication and authorization for web, mobile, and legacy applications, with new Fine Grained Authorization (FGA) that goes beyond role-based access control.

Kinde is auth for modern applications. Our powerful user authentication integrates in minutes and has a free tier to let you get started straight away. Every aspect of Kinde is designed to help your business grow and scale. From startup to IPO in a single platform. Authentication happens at some of the most important, and highly impactful, places in your customers' journey. Our powerful builder allows you to make sure that your pages are on brand and as beautiful as the rest of your website and product experience. Up-level your security with multi-factor authentication (MFA). Give your users access to advanced authentication options, protecting them from reused or breached passwords. Take control of user authorization and access with enterprise SSO and custom SAML so that you can support your biggest customers as quickly as possible. Manage users from one beautiful dashboard or using the API. Add and invite users, manage roles and permissions, and get a complete picture of your user activity. Controlling who can access which individual pieces of data and interface is critical to protecting your business and your customers. Hierarchical role-based access control is the best way to manage this. Allowing strict control and flexible assignment – aligning everything from your business view of the world right down to the code you ship to customers. 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.

FusionAuth offers powerful Single Sign-On (SSO) features that allow users to log in just once and gain access to numerous applications effortlessly. It is compliant with key industry protocols such as SAML v2, OIDC, and OAuth2, which guarantees its interoperability with various systems and identity providers. With a variety of deployment options available—ranging from on-premises to hybrid and cloud solutions—FusionAuth enables businesses to streamline identity management while maintaining security and control. Its API is designed for developers and the user interface can be tailored, facilitating seamless SSO integration throughout your application ecosystem, thereby enhancing implementation speed and user satisfaction.

Both IT teams and end users are afflicted by password reset tickets. IT teams will often push more urgent issues down the queue to ensure that users don't have their work put on hold while their passwords reset. Password reset tickets can be costly if they aren't addressed promptly. Nearly 30 percent of all help desk tickets were caused by forgotten passwords. It is not surprising that large companies have spent more than $1 million to resolve password-related help desk requests. It is a good habit to change passwords regularly, as it helps prevent cyberattacks caused by stolen credentials. Security experts recommend that administrators ensure that users change their passwords regularly and have password expiration policies in place.

ADManager Plus is an effortless and user-friendly solution for managing and reporting on Windows Active Directory (AD), designed to assist both AD administrators and help desk staff with their daily operations. Featuring a centralized and user-friendly web interface, this software addresses a range of intricate tasks, including the bulk management of user accounts and various AD objects, delegation of role-based access to help desk personnel, and the generation of a comprehensive array of AD reports, many of which are critical for compliance audit purposes. Additionally, this Active Directory tool provides mobile applications that enable AD administrators and technicians to carry out essential user management functions from their smartphones or tablets while on the go. It simplifies the process of creating multiple users and groups in Office 365, managing licenses, establishing Exchange mailboxes, migrating existing mailboxes, setting storage limits, and adding proxy addresses, thereby enhancing overall efficiency. With its robust features, ADManager Plus stands out as a vital asset for organizations aiming to streamline their AD management processes.

Protect your users. Make their journey easier. MIRACL Trust provides a safer and smoother authentication experience. Only one step. No passwords. No problem. Multi-factor authentication is slow and cumbersome. MIRACL is a safer and more efficient alternative to traditional MFA. Logging in takes only 2 seconds and error rates as low at 1/10th of passwords. No passwords necessary. All you need is a PIN and you are in. Our cryptographic technology ensures that users' information is always safe. MIRACL Trust provides a simple login experience that puts users first and makes it easy to roll out your data quickly.

LastPass is the leader in password and identity management solutions, trusted by individuals and organizations of all sizes worldwide. Millions rely on LastPass daily to create, store, manage, and protect their most important credentials, keeping them secure, private and always within reach. With LastPass, anyone can effortlessly log in to life or work anytime, anywhere.

Frontegg is a developer platform that enables self-service, security and enterprise-capabilities through a rich user-management interface, freeing up creativity and differentiation. Frontegg's platform provides more than just authentication and SSO via an embedded login-box. It also offers an Admin Portal that serves as the Settings area for your users. The Admin Portal lets your users manage all aspects of their accounts. Users can assign roles and permissions to users and teams, create and assign roles and permissions, view audit logs, subscribe for webhooks, and more. Frontegg interfaces can be embedded within your app as a UI layer and become a customer-facing management interface. This interface is available for both personal and workspace level. Frontegg can also power-up your backend with rich SDKs that are available in various languages and frameworks.

One platform, infinite ways for you to connect with your customers and employees. Any app can be made authable. Okta can help you create secure and delightful experiences quickly. Okta's Customer ID products can be combined to create the stack you need. This will provide security, scalability and reliability. Protect and empower your employees, contractors, partners. Okta's workforce identification solutions will protect your employees no matter where they are. You will have the tools you need to automate cloud journeys and support hybrid environments. Okta is trusted by companies around the globe to protect their workforce identities.

Rublon allows your workforce to securely connect to your organization's servers, networks, and applications. Multi-factor authentication makes it easy to protect your data and comply with data protection regulations such as GDPR. Rublon can be deployed across your organization, enabling multi-factor authentication (MFA) for all cloud apps, VPNs servers, workstations, on-premise and internal apps.

miniOrange offers a range of IAM products and solutions to secure both Identity anywhere and everywhere! Here are some of the major solutions from miniOrange: Single Sign-On (SSO): Enable SSO for web, mobile, and legacy apps with this robust solution which supports all IDPs and Authentication protocols. Multi-Factor Authentication (MFA): The only MFA solution in the market offering 15+ MFA methods including Push Notification, OTP verification, Hardware Token, Authenticator Apps, and many more. Customer Identity & Access Management (CIAM): Secure your customer identity and provide a seamless customer experience. CIAM enables you to safeguard customer privacy while providing them convenient access to your digital resources. User Provisioning: Sync all users automatically from your local directory to miniOrange. Effectively manage User Lifecycle for employees & customers. Adaptive Authentication: Tackle high-risk scenarios with ease with a solution that analyzes risk based on contextual factors and applies appropriate security measures. Universal Directory: A secure directory service that safeguards your sensitive information. It also allows you to integrate your existing directory into miniOrange.

It makes it easier for employees and students to access the apps they need to learn or work. Students and employees can reset their passwords at any time, which reduces the need for IT help. Increases cyber security by protecting user accounts against hacking and thwarting ransomware, phishing cyber attacks.

Many developers are unaware that the most powerful tool for managing users, handling authentication and authorization, and even designing custom login and signup pages is completely free and open source: Keycloak 🤯. However, being free means you’re responsible for setting it up and maintaining it as your application scales. This creates several challenges that we aim to solve: Awareness: Developers and businesses are often unaware that Keycloak can address all their IAM needs. Cost: Many businesses are paying significant costs with current IDaaS providers. Maintenance: Businesses already using Keycloak face challenges in managing maintenance overhead and meeting compliance requirements for sensitive data. Skycloak is a managed Keycloak service that provides enterprise-grade identity and access management capabilities without the complexity of managing your own infrastructure. It combines the robust features of Keycloak with additional tools and services to enhance your security and development experience.

Protect essential organizational data and enhance employee efficiency with OneLogin, a reliable identity and access management (IAM) platform tailored for contemporary businesses. This solution is crafted to bolster security within enterprises while streamlining login processes, making it an ideal choice for organizations aiming to implement security measures effortlessly. OneLogin boasts a variety of highly-rated functionalities, including single sign-on (SSO), a centralized directory, user provisioning, adaptive authentication, mobile identity management, compliance reporting, and additional features. By leveraging these tools, companies can ensure both security and ease of access for their users. As organizations continue to navigate the complexities of digital security, OneLogin stands out as a comprehensive solution to meet these evolving needs.

Aerobase is a publicly available Identity and Access Management (IAM) system that focuses on various aspects such as identity federation, single sign-on (SSO), robust and adaptive authentication methods, access management, account oversight, identity provisioning, as well as securing APIs and microservices in line with privacy regulations. This introductory guide is designed to assist you in setting up Aerobase, detailing server setup and the utilization of the default database. However, it does not delve into more advanced deployment methods. For additional insights into features or configuration settings, please refer to the supplementary reference materials available. Understanding these aspects will enhance your overall experience with Aerobase.

Descope is a CIAM platform meant for developers and IT teams. Customers can easily create frictionless and secure user journey flows for each user interaction using our no-code workflow builder and SDKs. Descope allows developers to spend more time working on core app projects by abstracting the details of authentication methods, session management, and risk management. Our platform makes it easy to manage users, tenants, RBAC, SCIM provisioning, and identity federation without any hassle. Customers use Descope to enhance user experience with passwordless authentication, improve security with risk-based MFA, and centralize user identities across all business-facing apps.

Univention Corporate Server UCS, our open integration platform, offers centralized Identity & Access Management with Nubus via a web portal. Portal with Single Sign-On -Integrated IAM -Packaged Integrations App Center with enterprise applications Active Directory Integration -Platform to manage your entire IT -On-premises, in the cloud or hybrid Nubus is the central IAM solution that manages identities, roles and groups. The integrated portal, with Single Sign-On (SSO) and self-service features, provides access to all applications and IT services. Apps can be quickly and easily implemented thanks to pre-built integration packages and software. UCS is the ideal solution for managing heterogeneous and distributed IT environments on Windows, Mac OS and Linux systems. Download the free UCS Core Edition from our website to learn more about UCS.

Experience the pinnacle of authentication technology with Authx, allowing you to log in effortlessly from anywhere at any time using various modalities such as facial recognition, fingerprint, or palm scanning. This secure platform offers a blend of simplicity, intelligence, and occasionally astonishing performance in authentication. Whether accessing any system or application, you can utilize Authx’s diverse capabilities to adjust your preferred login method whenever necessary. Authx stands out for its security, scalability, and user-friendliness, enabling you to register once and enjoy seamless access across multiple platforms. With a commitment to providing time-saving authentication solutions, Authx ensures that security is always paramount, backed by 24/7 expert support. Furthermore, with Authx Mobile available for both iOS and Android, you can conveniently receive authentication prompts directly on your device. Effortless access is at your fingertips with options for biometrics or a quick touch of your access card, and the convenience of Bluetooth Low Energy (BLE) allows you to log in while in close proximity. Embrace the future of secure authentication with Authx, where ease and reliability are at the forefront.

AD360 is an integrated identity management (IAM), solution that manages user identities, controls access to resources, enforces security, and ensures compliance. AD360 allows you to perform all your IAM tasks using a simple and easy-to-use interface. All these functions are available for Windows Active Directory, Exchange Servers and Office 365. You can choose the modules that you need and get started addressing IAM issues across hybrid, on-premises, and cloud environments with AD360. You can easily provision, modify, and deprovision mailboxes and accounts for multiple users from one console. This includes Exchange servers, Office 365, G Suite, and Office 365. To bulk provision user accounts, you can use customizable templates for user creation and import data from CSV.

PropelAuth offers seamless integration and intuitive APIs tailored for developers, while also featuring built-in user management that caters to customer-facing teams. Additionally, it provides valuable data and insights designed for product managers and executives. The foundation of PropelAuth is the belief that an exceptional authentication product should effortlessly support your needs. We equip you with essential tools right from the start, enabling you to create secure and seamless experiences for your users. When you begin onboarding users, your team is likely to encounter a comprehensive list of tasks and requirements. In PropelAuth, organizations are treated as a key element, allowing you to utilize our user interfaces for a quick setup or create customized solutions through our APIs. You can either start with our predefined roles or develop your own to suit your preferences. Furthermore, we simplify the process of updating existing users whenever changes are made. Integration with identity providers such as Okta and Azure AD is made straightforward, and we supply guides to assist users in configuring and testing their settings. You can also customize session lengths for each organization, enforce multi-factor authentication, and much more. By managing the complexities of identity management, we allow you to focus on what truly matters. Embrace a hassle-free authentication experience with PropelAuth and enhance your operational efficiency.

Implement enterprise single sign-on in less than a day with SSOReady, which seamlessly integrates with the identity services that your customers rely on. After configuring SSOReady, you will gain immediate access to all major identity providers. With only two API calls, you can enable multi-tenant SSO support while continuing to utilize your existing tech stack. Users can be programmatically provisioned and de-provisioned through a single, unified API that interfaces with your customers' identity providers. Acting merely as an authentication middleware layer, SSOReady does not claim ownership of your users and does not bind you to any specific technology, facilitating a smoother onboarding process. This design encourages us to maintain your loyalty over time, as switching providers becomes easier for you. SSOReady simplifies the integration by requiring you to only redirect users to a designated URL. Additionally, its SDKs conveniently generate this URL for you, allowing you to redirect users using any suitable method within your tech stack, enhancing flexibility and ease of use. Ultimately, SSOReady empowers you to streamline your authentication process while maintaining control and adaptability.

Zoho Directory, a cloud-based platform for identity and access management, is designed to streamline authentication and authorization. It also simplifies user management. Single Sign-On (SSO), which allows employees to access multiple apps with a single set credentials, enhances security and user convenience. Multi-Factor Authentication is supported by the platform, adding an additional layer of protection from unauthorized access. Device authentication provides secure access to applications and devices. Employees can use the same credentials on all platforms. Zoho Directory offers robust provisioning capabilities, which allow IT administrators to create user profiles for various applications from the platform. This reduces the time spent on repetitive work. Directory stores facilitate integration with existing directories such as Microsoft Active Directory or Azure AD.

Authentik serves as an open-source identity provider that consolidates all your identity management needs into a singular platform, effectively replacing solutions like Okta, Active Directory, and Auth0. Authentik Security operates as a public benefit company focused on enhancing the open-source initiative. By utilizing a self-hosted, open-source identity provider, you are able to emphasize security and maintain control over your most confidential information. With authentik, the reliance on third-party services for your identity management is eliminated, offering greater peace of mind. You can seamlessly integrate authentik into your existing environment, tailoring it to meet diverse requirements. Our APIs and fully customizable policies empower you to automate workflows effectively. Deployment and scaling are made easier with our prebuilt templates and compatibility with Kubernetes, Terraform, and Docker Compose. You can avoid depending on external services for essential infrastructure and safeguard your sensitive data from the public internet. Take advantage of our pre-built workflows, or opt to modify every stage of authentication through flexible templates, infrastructure as code, and extensive APIs, ensuring a personalized experience. This flexibility allows you to adapt authentik to suit your unique organizational needs while enhancing security measures.

Authelia serves as an open-source server and portal for authentication and authorization, effectively managing identity and access in information security by providing multi-factor authentication and single sign-on capabilities through a web portal for various applications. This tool is designed to work seamlessly with popular reverse proxies. Notably, it boasts a compact container size of under 20 megabytes and typically consumes less than 30 megabytes of memory, making it one of the most lightweight options available. Developed using Go and React, it executes authorization policies and backend tasks in just milliseconds, with login portal loading times averaging around 100 milliseconds, positioning it among the fastest solutions on the market. Despite the high energy consumption of processors under load, Authelia's idle power usage is so minimal that it is nearly unmeasurable, while its active usage in a small business setting remains below 1%, excluding the process of password hashing, providing peace of mind. The design of Authelia places a strong emphasis on security, ensuring that user data is well protected throughout its operations. This commitment to security is an integral aspect of the overall functionality and reliability of the system.