Best Free Single Sign On Software
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Compare the Top Free Single Sign On Software as of June 2026
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What is Free Single Sign On Software?
Single sign-on (SSO) software allows users to access multiple applications and systems using just one set of login credentials. It improves security by centralizing authentication and reducing the need for weak or reused passwords. SSO platforms integrate with identity providers, directories, and cloud services to streamline user access across an organization. They also help IT teams manage permissions, enforce security policies, and monitor login activity from a single dashboard. Overall, single sign-on software enhances user convenience, strengthens security, and simplifies identity management. Compare and read user reviews of the best Free Single Sign On software currently available using the table below. This list is updated regularly.
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1
Frontegg
Frontegg
Frontegg is a Customer Identity and Access Management (CIAM) platform that simplifies authentication, authorization, and user management for SaaS companies. It enables developers to implement advanced identity features quickly, then shift ongoing administration to other teams. With Frontegg, Product, Infosec, and Customer Success teams can take control of key identity tasks like managing user roles, enforcing security policies, and handling customer requests, all without engineering support. Developers reduce toil and regain focus on core product work, while stakeholders move faster without bottlenecks. Frontegg supports modern identity features including SSO, MFA, role-based access control, entitlements, multi-tenancy, and audit logs. Its low-code platform integrates in days and provides a user-friendly admin portal that bridges technical and non-technical teams. Frontegg increases operational efficiency, improves security posture, and enhances the customer experience.Starting Price: Free -
2
Auth0
Okta
Auth0 takes a modern approach to Identity, providing secure access to any application, for any user. Safeguarding billions of login transactions each month, Auth0 delivers convenience, privacy, and security so customers can focus on innovation. Auth0 is part of Okta, The World’s Identity Company™. Auth0 lets you quickly integrate authentication and authorization for web, mobile, and legacy applications, with new Fine Grained Authorization (FGA) that goes beyond role-based access control. Authenticate users across all applications with a customized, secure, and standards-based single login. Universal Login connects users to a central authorization server. Credentials aren’t transferred across sources, which boosts security and protects against phishing and credential stuffing attacks. OAuth 2.0 recommends that only external user agents (like the browser) be used by native applications for authentication flows. Auth0’s Universal Login achieves this while enabling SSO.Starting Price: Free plan -
3
FusionAuth
FusionAuth
FusionAuth delivers robust Single Sign-On (SSO) capabilities, enabling users to authenticate once and access multiple applications seamlessly. It supports industry standards like SAML v2, OIDC, and OAuth2, ensuring compatibility with a wide range of systems and identity providers. With flexible deployment options — including on-prem, hybrid, and cloud — FusionAuth empowers organizations to centralize identity management without sacrificing control or security. Its developer-friendly API and customizable UI make it easy to integrate SSO across your app ecosystem, accelerating implementation and improving user experience.Starting Price: $0 -
4
Admin By Request Endpoint Privilege Management
Admin By Request
Admin By Request’s Endpoint Privilege Management gives organisations full control over local admin rights, application elevation, and endpoint privilege access across Windows, macOS, and Linux, without the complexity of traditional PAM solutions. For mid-market organisations, EPM acts as a complete, easy-to-deploy solution for managing endpoint access and privilege. It removes standing admin rights, enables just-in-time elevation, supports approval workflows, and provides full audit trails to strengthen security and meet compliance requirements. For enterprise organisations, EPM fits alongside existing security and identity stacks as a focused control layer that closes endpoint gaps traditional PAM solutions often leave behind, improving control without increasing support costs or requiring a full PAM overhaul.Starting Price: Free Plan -
5
ManageEngine ADManager Plus
ManageEngine
ADManager Plus is a simple, easy-to-use Windows Active Directory (AD) management and reporting solution that helps AD administrators and help desk technicians in their day-to-day activities. With a centralized and intuitive web-based GUI, the software handles a variety of complex tasks like bulk management of user accounts and other AD objects, delegates role-based access to help desk technicians, and generates an exhaustive list of AD reports, some of which are an essential requirement to satisfy compliance audits. This Active Directory tool also offers mobile AD apps that empower AD admins and technicians to perform important user management tasks, on the move, right from their mobile devices. Create multiple users and groups in Office 365, manage licenses, create Exchange mailboxes, migrate mailboxes, set storage limits, add proxy addresses, and more.Starting Price: $595 per year -
6
ManageEngine ADSelfService Plus
ManageEngine
ADSelfService Plus is an on-premises access management solution that caters to businesses across various industries, such as IT, banking, engineering, education, aviation, and telecommunications. Key features include: 1. Self-service password resets and account unlocks: Users can reset their passwords in AD and unlock their domain accounts from a web browser. 2. MFA: Machine logins, VPN and OWA logins, and cloud app logins can be secured using MFA. 3. Password synchronizer and SSO: Users can log in to multiple apps using one unified identity via SSO and real-time password synchronization. 4. Password policy enforcer: Admins can configure custom password policies to enforce strong password creation. 5. Password expiration notifier: Admins can send end users password expiration notifications via SMS or email. 6. Directory self-update: Users can update their AD attribute information through the directory self-update feature.Starting Price: $595 for 500 domain users/year -
7
Cisco Duo
Cisco
Cisco Duo is a cloud-based identity security solution that protects organizations from identity-based threats and boosts workforce productivity. Trusted by over 40,000 organizations worldwide, Duo delivers an exceptional access management experience across all users, devices, and applications, making access to resources secure, seamless, and easy. Duo with Cisco Identity Intelligence provides deep visibility across your identity ecosystem, adding a powerful security layer to any identity infrastructure. Offer users a world-class access experience through Duo Passport to eliminate MFA friction and fatigue without sacrificing security. To stop threats, Duo verifies user identities with strong authenticators including Duo passwordless, Verified Duo Push with number matching, and phishing-resistant factors like biometrics and FIDO2 security keys. Paired with deep insights into users’ devices, Duo gives you the control to adaptively limit access based on device health or user risk.Starting Price: $3 per user per month -
8
MIRACL
MIRACL
World's fastest MFA with the highest login success rate above 99%. Highly secure, password-free login in just two seconds. MIRACL works on any device or browser, removing the barriers to authentication to optimise the the user experience, decrease costs, and win lost revenue. Protect your users. Simplify their journey. MIRACL Trust offers a safer, smoother authentication experience. One step. No passwords. No problem. Traditional multi-factor authentication is slow and cumbersome. MIRACL is a smoother, safer alternative to traditional MFA. 2 seconds to log in with error rates as low as 1/10th that of passwords. No passwords necessary. One PIN, and you’re in. Our cryptographic technology means that user info stays with users. MIRACL Trust offers an effortless login experience that puts users first, rolls out hassle-free, and keeps data locked up tight. PSD2 SCA compliant, GDPR compliant and satisfies NJ Gaming MFA requirements. -
9
LastPass
LastPass
LastPass is a cloud-based password manager available on any system or device, ensuring credentials are protected, private, and always within reach. Simple to set up and effortless to use, LastPass delivers the world's most convenient password management experience for consumers and businesses of all sizes and technical requirements. Say goodbye to password fatigue by generating, sharing, accessing, and managing credentials at the click of a button, while preventing bad actors from accessing precious data and account logins. Businesses also utilize LastPass to consolidate their tech stacks or to fill access management gaps with native integrations for MS Entra, Okta, and other IdPs and IAMs. With over 100 customizable policies, flexible privileges, detailed reporting, MFA and passwordless authentication options, LastPass makes it easy for organizations with numerous logins and increasing security risks to standardize password management company wide.Starting Price: $4 per user per month -
10
Okta
Okta
One platform, infinite ways to connect to your employees and customers. Build auth into any app. Create secure, delightful experiences quickly by offloading customer identity management to Okta. Get security, scalability, reliability, and flexibility by combining Okta’s Customer Identity products to build the stack you need. Protect and enable your employees, contractors, and partners. Secure your employees—wherever they are—with Okta’s workforce identity solutions. Get the tools to secure and automate cloud journeys, with full support for hybrid environments along the way. Companies around the world trust Okta with their workforce identity. -
11
Skycloak
Skycloak
Many developers don’t realize Keycloak, a free and open-source IAM tool, offers powerful user management, authentication, and custom login features. However, managing and scaling Keycloak can be complex. Skycloak simplifies this by providing a managed Keycloak service, eliminating maintenance overhead, cutting costs, and ensuring compliance—giving you enterprise-grade IAM without the hassle.Starting Price: $25/month -
12
Rublon
Rublon
Rublon enables your workforce to securely access your organization's networks, servers and applications. Protect your data via easy-to-use multi-factor authentication and comply with data protection regulations like GDPR. Deploy Rublon organization-wide, enabling MFA for all your cloud apps, VPNs, servers, workstations, internal as well as on-premise apps.Starting Price: $1/month/user -
13
miniOrange
miniOrange
miniOrange is a premier Identity and Access Management platform offering Workforce and Customer Identity solutions to diverse industries from IT to eCommerce to manufacturing and many more. With miniOrange, you can configure Single Sign-On (SSO), Multi-Factor Authentication (MFA), set up custom rules or policies, and customize the login page for any cloud, on-premise, or in-house apps. Get pre-built integrations for 5000+ applications including legacy apps, cloud apps, and many more. Customers praise miniOrange’s outstanding support and their ability to provide customized solutions for unique use cases.Starting Price: $1 per user per month -
14
Quicklaunch
Quicklaunch
QuickLaunch is the #1 leader in Identity and Access Management (IAM) for Higher Education. More than 500 organizations trust QuickLaunch’s platform to manage over 2,000,000 identities and integrate over 3,000 applications worldwide. CIOs, CTOs, and CISOs use QuickLaunch IAM technologies to engage with students, faculty, and staff and protect them throughout their journey. QuickLaunch’s technology is vital in protecting the user experience, driving both operational efficiencies and higher productivity for colleges, universities, and institutions. Improves cyber security posture by protecting user accounts from being hacked and thwarting ransomware and phishing cyber attacks. Automatically provisions students from the Student Information System and employees from the Human Resources system so they can quickly get access to the apps they need when they matriculate and join.Starting Price: $0.73 per month -
15
AuthX
AuthX
The most advanced authentication platform in the world. Log in online anytime, anywhere with your face, finger, palm, push or any other modality we support. It’s secure authentication that is simple, smart and occasionally magical. Use Authx to on any system and into any application from anywhere. Use any capability to log in and change preferred methodology anytime you like. Authx is secure, scalable and extremely easy to use. Register once and use everywhere. Enjoy Authx with all the time-saving solutions you need to securely authenticate. Authx is always secure and reliable and our experts are here to support you 24/7. Use Authx Mobile for iOS and Android and push an authentication right to your phone. Log in with your Face, Finger or Palm. Authx Mobile enables you to authenticate with Push as well as biometrics on your phone. You can log into your applications with a simple touch of your access card or in range with BLE.Starting Price: $2.99 per month -
16
OneLogin
OneLogin
Secure critical company information and empower employees with OneLogin, a trusted identity and access management (IAM) solution for the modern enterprise. Designed to strengthen enterprise security while simplifying business logins, OneLogin is an excellent solution for companies looking to enforce security policies with ease. OneLogin includes top-rated features such as single sign-on (SS), unified directory, user provisioning, adaptive authentication, mobile identitiy, compliance reporting, and more. -
17
Aerobase
Aerobase
Aerobase is an open-source Identity and access management (IAM) platform that specializes in identity federation, SSO, strong & adaptive authentication, access control, account management & identity provisioning, API & microservices security and privacy regulation. This guide helps you get started with Aerobase. It covers server configuration and use of the default database. Advanced deployment options are not covered. For a deeper description of features or configuration options, consult the other reference guides.Starting Price: $690 per month -
18
Descope
Descope
Descope is a drag-and-drop customer authentication and identity management platform. Our no / low code CIAM solution enables developers to easily create and customize their entire user journey using visual workflows – from authentication and authorization to MFA and federation. Descope also provides a connectors ecosystem with dozens of third-party services for use cases such as identity verification, fraud prevention, risk-based authentication, and identity orchestration. Descope is built on a scalable multi-tenant architecture with high availability that can support advanced enterprise requirements. Customers use Descope to improve their user onboarding with passwordless authentication, enhance security with MFA and step-up controls, and unify customer identities across business properties. Founded in 2022, Descope is backed by Lightspeed and GGV and is a member of the FIDO Alliance.Starting Price: $0.05 per user per month -
19
Kinde
Kinde
Authentication happens at some of the most important, and highly impactful, places in your customers' journey. Take control of user authorization with a passwordless authentication, social integrations, and enterprise SSO. Support the branding of all your customers with custom domains and a fully customisable UI by bringing your own pages and designs. Integrate with complex requirements and run your own code during authentication using our powerful workflows. Organise all your business customers using organizations to easily segergate them and fine tune the authentication experience to their individual needs. Monetize your ideas quickly with Kinde's billing tools. Create subscription plans and collect revenue effortlessly. Kinde adapts to your business model, supporting B2C, B2B, and B2B2C with robust organization management and flexible billing logic that scales with your customers.Starting Price: Free -
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Univention Corporate Server
Univention
Univention Corporate Server UCS is our open integration platform offering centralized Identity & Access Management (IAM) with Nubus with a web portal. -Portal with Single Sign-On -Integrated IAM -Packaged integrations -App Center with enterprise applications -Active Directory integration -Platform for your entire IT -Operation on-premise, in the cloud, or hybrid The centerpiece of UCS is Nubus, our central IAM solution for managing identities, roles, and groups. The integrated portal with Single Sign-On and self-service functions provides access to all IT services and applications. Thanks to pre-built software and integration packages, apps can be easily put into operation. UCS is ideal for managing distributed, heterogeneous, and virtualized IT environments across Windows, Mac OS, and Linux systems. Find out more about UCS on our website and download the free UCS Core Edition!Starting Price: €25.00 /net per user and year -
21
ManageEngine AD360
Zoho
AD360 is an integrated identity and access management (IAM) solution for managing user identities, governing access to resources, enforcing security, and ensuring compliance. From user provisioning, self-service password management, and Active Directory change monitoring, to single sign-on (SSO) for enterprise applications, AD360 helps you perform all your IAM tasks with a simple, easy-to-use interface. AD360 provides all these functionalities for Windows Active Directory, Exchange Servers, and Office 365. With AD360, you can just choose the modules you need and start addressing IAM challenges across on-premises, cloud, and hybrid environments from within a single console. Easily provision, modify, and deprovision accounts and mailboxes for multiple users at once across AD, Exchange servers, Office 365 services, and G Suite from a single console. Use customizable user creation templates and import data from CSV to bulk provision user accounts.Starting Price: $595.00 / year -
22
PropelAuth
PropelAuth
Easy integration and straightforward APIs for developers. Built-in user management for customer-facing teams. Data and insights for PMs and executives. PropelAuth was founded on the idea that a great auth product gets out of your way. We provide you with the right tools out of the box, so you can quickly make your users' experiences as secure and smooth as possible. As soon as you start onboarding users, your team will have a laundry list of things they need to do or see. Organizations are a first-class concept in PropelAuth. You can use our UIs to get started quickly or build your own with our APIs. Start with our default roles, or create your own. We even handle updating existing users when you make changes. The easiest way to integrate with identity providers, like Okta and Azure AD. We provide guides for your users to set up and test their configuration. Set custom session durations per organization, enforce MFA, and more. We handle the complexity so you don't have to.Starting Price: $150 per month -
23
SSOReady
SSOReady
Ship enterprise single sign-on in less than a day. SSOReady integrates with the services your customers use for single sign-on. Once you've set up SSOReady, you immediately get coverage for all major identity providers. Get multi-tenant SSO support with just two API calls. Stick with the tech stack you already use. Programmatically provision and de-provision users with a single unified API for your customers' identity providers. SSOReady is just an authentication middleware layer. SSOReady doesn’t “own” your users, and it doesn’t require you to use any particular tech stack. That’s on purpose, it makes onboarding easier for you, and it forces us to keep earning your business in the long run because churning is easier. SSOReady abstracts all this work away into you just needing to redirect your user to a URL. SSOReady’s SDKs generate a URL for you, and then you simply forward your user to that URL using any mechanism that suits your tech stack.Starting Price: Free -
24
Zoho Directory
Zoho
Zoho Directory is a cloud-based identity and access management platform designed to streamline authentication, authorization, and user management for organizations. It offers Single Sign-On (SSO) capabilities, allowing employees to access multiple applications with a single set of credentials, thereby enhancing security and user convenience. The platform supports Multi-Factor Authentication (MFA), adding an extra layer of protection against unauthorized access. Device authentication ensures secure access to both applications and devices, enabling employees to use the same credentials across platforms. Zoho Directory also provides robust provisioning features, allowing IT administrators to create and manage user profiles across various applications directly from the platform, reducing the time spent on repetitive tasks. Integration with existing directories, such as Microsoft Active Directory and Azure AD, is facilitated through directory stores.Starting Price: $1.70/user/month -
25
authentik
authentik
authentik is an open source identity provider that unifies your identity needs into a single platform, replacing Okta, Active Directory, and Auth0. Authentik Security is a public benefit company that is building on top of the open-source project. Using a self-hosted, open-source identity provider means prioritizing security and taking control of your most sensitive data. With authentik, you no longer need to continually place your trust in a third-party service. Adopt authentik to your environment, regardless of your requirements. Use our APIs and fully customizable policies to automate any workflow. Simplify deployment and scaling with prebuilt templates and support for Kubernetes, Terraform, and Docker Compose. No need to rely on a third-party service for critical infrastructure or expose your sensitive data to the public internet. Use our pre-built workflows, or customize every step of authentication through configurable templates, infrastructure as code, and comprehensive APIs.Starting Price: $0.02 per month -
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Authelia
Authelia
Authelia is an open source authentication and authorization server and portal fulfilling the identity and access management role of information security in providing multi-factor authentication and single sign-on for your applications via a web portal. It acts as a companion for common reverse proxies. With a compressed container size smaller than 20 megabytes and observed memory usage normally under 30 megabytes, it's one of the most lightweight solutions available. Written in Go and React, authorization policies and many other backend tasks are completed in mere milliseconds, and login portal loading times of 100 milliseconds make it one of the fastest solutions available. Processors can use a lot of electricity, but when idle, usage is basically so low that you can't measure it, and active usage in a small business environment being under 1% allows you to rest easy (with the exclusion of password hashing). Security is heavily considered as part of our design process.Starting Price: Free -
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WWPass
WWPass
No need to remember, manage, reset, protect or exchange. Consolidation of all logins in one protected authentication token. Easy self-management of the authentication token. Log in with a universal, international digital identity, trusted if required and anonymous if allowed. All data is encrypted by the user with WWPass Key. No need for OTP, SMS, or other extra costly adaptive authentication and login support. User identity is protected by WWPass Key. WWPass MFA is a strong customer authentication compliant with GDPR and NIST. Each user gets a unique key, which helps to log in to an unlimited number of accounts and services without usernames and passwords. Log in to a growing number of online services with your WWPass Key as a universal key to the digital world. Enable next-generation strong multi-factor authentication without usernames and passwords. Simplify and streamline secure access to any business application without a username and password.Starting Price: Free -
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BoxyHQ
BoxyHQ
Security Building Blocks for Developers. BoxyHQ offers a suite of open-source APIs for security and privacy, helping engineering teams build and ship compliant applications faster, reducing Time to Market without sacrificing their security posture. 1. Enterprise Single Sign On (SAML/OIDC SSO) 2. Directory Sync 3. Audit Logs 4. Data Privacy Vault (PII, PCI, PHI compliant)Starting Price: $0 -
29
Ory
Ory
The missing web-scale API for identity and access control. 10x your security, user experience, and PII compliance today. Build secure apps on top of the Ory Network and reach new customers in any geopolitical region of the world with the best login experience ever. Login is more than a username and password. Building it from the ground up is time-consuming and dangerous. Ory's API-first microservice architecture makes it straightforward to integrate projects at any stage. Pay for usage, not features. Get advanced multi-factor to auth on every Ory subscription plan. Plus advanced permissions, SSO, OAuth2, OIDC, multi-tenancy, and so much more. Ory is made for high-performance, high-scale applications in any cloud. Built with developers in mind, Ory lets you quickly build your on-brand user experience and integrate it into your software stack. Ory's focus on open standards and automated data import capabilities makes migrating from legacy systems straightforward.Starting Price: $29 per month -
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Tesseral
Tesseral
Tesseral is the open source platform for managing identity and access in business software. It provides enterprise-grade capabilities, including SAML single sign-on, SCIM provisioning, role-based access control, managed API keys, and audit logs, implemented in just a few lines of code. Tesseral unifies access management for employees, customers, services, and AI agents, giving organizations the flexibility to adapt to any deployment model and the authority to enforce security policies with precision. You can learn more by reading our docs or by checking out our GitHub.Starting Price: $0
