The best single sign-on (SSO) tools

We reviewed a wide range of SSO platforms and shortlisted the ones that offer the best overall value for modern teams:

1. OneLogin SSO
2. Microsoft Entra ID
3. Ping Identity
4. Okta
5. Google Cloud SSO

These tools stand out based on what matters most for identity and access management (IAM):

• Security and access control features
• Ease of setup and daily use
• Scalability for growing teams
  • Fit for small-medium business needs
• Integration with common business apps
  • Google Workspace integration
• Support and documentation
• Technical Performance Analysis
  • Protocol & Federation Support
    • SAML 2.0, OpenID Connect (OIDC), OAuth 2.0
    • Legacy/non-modern auth bridging (header-based, agent-based)
  • Application Integration Coverage
    • SaaS, on prem, legacy, and custom apps
    • Support for non-standard / non-federated applications
  • Authentication Engine
    • MFA methods (FIDO2, biometrics, OTP, push)
    • Adaptive/risk-based authentication
    • Step-up / conditional authentication flows
  • Policy & Access Enforcement
    • Centralized policy engine
    • Context-based access (user, device, network, risk)
    • Role/group and attribute-based access control (RBAC/ABAC)
  • Identity Lifecycle & Provisioning
    • SCIM / automated provisioning & deprovisioning
    • Attribute-based entitlements
    • Real-time access revocation
  • Directory & Infrastructure Integration
    • AD, Entra ID, LDAP, HR systems
    • RADIUS, VPN, Wi Fi authentication
    • API/SDK extensibility
  • Security Telemetry & Scalability
    • Audit logs, real-time event streaming
    • SIEM integration
    • High availability, performance at scale

Now, let us review the top SSO software on the market:

OneLogin SSO is a cloud-based single sign-on solution designed to give users quick and secure access to all their applications. It is especially well suited for small and mid-sized businesses that want strong security without dealing with complex setups.

Key features of OneLogin SSO

One-click access across all apps

Users can log in once and get instant access to all their apps from a single dashboard. This works across desktops, phones, tablets and other devices.

Strong security with MFA and policies

OneLogin includes built-in multi-factor authentication (MFA) and policy based access controls. Administrators can enforce password rules and access restrictions based on user context.

Deep integration with Google Workspace

OneLogin works smoothly with Google Workspace, making it easy to manage user access across Gmail, Drive and other Google services from one place.

Solution fit for small and medium businesses

OneLogin SSO is a fantastic match for SMBs because it combines strong security features like MFA and centralized access management with quick deployment, decreased IT overhead and seamless, one-click access to apps, allowing smaller teams to enhance productivity without having a big IT staff.

Unified endpoint experience with OneLogin Desktop

With OneLogin Desktop, users who log into their work devices can directly access their apps without signing in again and again.

Support for multiple logins and environments

Users can manage multiple accounts for the same app, such as separate staging and production environments. This is useful for developers and teams working across different setups.

Social login for customer-facing apps

OneLogin supports login through social platforms like Facebook and LinkedIn. This is helpful for customer-facing apps where a smooth sign-in experience matters.

Password vaulting for legacy apps

For apps that do not support modern federation, OneLogin offers secure password vaulting. This allows teams to bring older apps into the same SSO experience.

Awards and recognition

• Named an Overall Leader, Product Leader and Market Leader in the 2025 KuppingerCole Access Management Leadership Compass
• OneLogin by One Identity was named an overall Product and Market Leader by KuppingerCole Analysts in 2024, especially for passwordless authentication needs
• OneLogin is ranked as top MFA solution for business by Expert Insights
• OneLogin ranked #1 MFA solution by AI Multiple

Reviews and testimonials

OneLogin continues to receive strong feedback from customers for its ease of use and flexibility.

“The single sign-on services provided by OneLogin have proven imperative to rolling out new applications to the whole organization, no matter the location or time zone. It has helped us simplify a rapidly evolving set of applications and move forward with confidence.”

— Mike Lynch, IT Director, Berwin Leighton Paisner

Technical Performance

OneLogin stands out as the leader in SSO technology. The following are highlight from the technical performance of the OneLogin SSO tool:

• Full-stack access management (SSO + MFA + lifecycle)
• Broadest app + infrastructure coverage (incl. RADIUS, desktop SSO)
• Connector leadership → fastest integrations, widest app coverage
• Real-time lifecycle automation (key differentiator)
• Strong API platform (extensive endpoints, SDKs)
• Real-time visibility + SIEM-ready reporting
• Fast, plug-and-play deployment (SMB + enterprise ready)

Comparing OneLogin to SSO alternatives

Here is a quick comparison of the technical performance, across key performance criteria that are important in the process of selecting the right SSO solution for your organization:

Microsoft Entra ID is a widely used IAM platform that includes strong SSO capabilities. It allows users to access cloud platforms and on-premises systems with one set of credentials.

Key features of Microsoft Entra ID

Here are some notable features of Microsoft Entra ID:

• SSO across cloud and on-premises apps: Users can securely access both modern cloud apps and older on-premises systems using one login, which helps maintain consistency across environments.
• Application proxy for on-premises access: Microsoft Entra application proxy enables SSO for internal apps without requiring a VPN, supporting methods like header-based authentication and integrated Windows authentication.
• Support for multiple SSO protocols: The platform supports SAML, OpenID Connect and OAuth, making integration easy with both modern and legacy applications.
• Prebuilt app integrations: Microsoft offers a large catalog of pre-integrated apps like ServiceNow, Workday, Slack and Box, which helps speed up deployment.

Limitations and considerations

• Microsoft Entra ID in general can feel complex for smaller teams, especially during initial setup and policy configuration.
• Some advanced features require higher-tier licensing, which can increase overall costs for organizations with limited budgets.

Technical Performance

Microsoft Entra comes in place #2, as the best alternative after OneLogin. While it has its strengths and limitations, it is worth understanding the technical levle of performance of this SSO tool:

• Strong SSO + security within Microsoft ecosystem
• Broad standards support and app integrations (Microsoft-first)
• Strong device trust + conditional access
• Complex deployment outside Microsoft stack
• Lifecycle tied to AD (less flexible)

Ping Identity SSO is built to give users secure, one-click access to all their apps without having to deal with multiple passwords.

Key features of Ping Identity SSO

Here are some notable features of Ping Identity:

• Support for cloud and legacy systems: Ping works across SaaS apps, internal systems, APIs and custom-built apps.
• Standards-based federation with PingFederate: It supports identity federation using widely accepted standards, helping connect apps and domains securely.
• Self-service account management: Users can handle sign-ups, password resets and profile updates on their own.
• Social login and account linking: Customers can sign in using social accounts and link them with enterprise identities for a smoother experience.
• Passwordless authentication support: Ping supports passwordless login options, which helps improve both security and user experience.

Limitations and considerations

• The user interface can feel less intuitive compared to some other SSO tools, especially for new users.
• Initial configuration may take time for organizations with complex environments.

Technical Performance

• Strong enterprise federation + hybrid support
• Full standards support (SAML, OIDC, OAuth)
• Advanced security and policy controls
• Multi-component architecture → complex deployment
• Enterprise-focused (less suited for SMB)

Okta Workforce Identity is a well-known SSO solution that helps organizations manage user access across cloud and on-premises apps. It provides a centralized platform where administrators can control authentication and enforce organizational policies.

Key features of Okta

Here are some notable features of Okta:

• Single sign-on with passwordless support: Okta enables users to log in once and access all assigned apps, with options for passwordless authentication and phishing-resistant login flows.
• Large integration network: Okta offers over 8,000 pre-built integrations through its integration network.
• Support for multiple identity stores: It integrates with stores like Active Directory, LDAP and HR platforms to centralize identity data across different sources.
• Customizable user dashboard: End users get a personalized dashboard where they can access all assigned apps and resources in one place.
• Developer tools and APIs: Okta provides tools for developers to add authentication to custom apps and infrastructure.

Limitations and considerations

• Okta pricing can become expensive as you add more features or scale to larger teams.
• Some configurations may require technical knowledge.

Technical Performance

Okta is a well-rounded security solution, but when it comes to specific technical aspects, it does not match the performance of OneLogin. Here are a few technical highlights to keep in mind:

• Strong SaaS SSO + integration ecosystem
• Mature standards support + developer tools
• Strong adaptive security and device context
• Higher cost at scale
• Lifecycle strong but not real-time

Google Cloud SSO is built into Cloud Identity and Google Workspace, allowing organizations to connect their existing identity provider with Google services. When it’s enabled, users are redirected to an external IdP for authentication when accessing Google apps.

Key features Google Cloud SSO

Here are some notable features of Google Cloud SSO:

• SAML 2.0-based authentication: Google Cloud supports SAML 2.0 for SSO, making it compatible with most enterprise identity providers.
• No password sync required: Since authentication happens through the external IdP, there is no need to sync or store passwords in Google Workspace or Cloud Identity.
• Flexible SAML profile configuration: Administrators can create multiple SAML profiles and assign them to users or organizational units based on access needs.
• Multi-factor authentication support: MFA can be handled either by the external IdP during login or by Google through its own two-step verification after authentication.

Limitations and considerations

• Google Cloud SSO depends on an external identity provider, so it is not a complete standalone SSO solution.
• It does not support IdP-initiated sign-in flows, which may limit certain login scenarios for some organizations.

Google Workspace integration

If your team relies on Google apps, not all of the top SSO tools offer the same level of integration. Look for a solution that can easily connect with Google Workspace, manage user access centrally and reduce the need for separate login flows across Google services.

This, especially, makes OneLogin SSO stand out as the top solution for Google Workspace integration.

Technical Performance

While Google security tools are reliable, as a company, they have a wide-spread application of tools, not only security, i.e. SSO. Here are some of the highlights for Google SSO technical performance:

• Solid SAML-based SSO within Google ecosystem
• Lightweight integration model
• Not a full standalone SSO platform
• Limited lifecycle automation + advanced controls
• Dependent on external identity provider

If you are a small or mid-sized business looking for a balance between security and simplicity, OneLogin stands out as one of the best options. It is easier to deploy, more cost-friendly, has all the necessary features and works especially well if your team relies on Google Workspace. Compared to more complex platforms, it gives you strong SSO and MFA without requiring a large IT team to manage it.

OneLogin stands out as the most complete SSO solution. This is especially true for SMB security needs, and Google Workspace integration.

If you are already using Google Cloud and have an external identity provider in place, Google Cloud SSO can work well as part of that setup, though it is not a full standalone solution.