Top Free Single Sign-On (SSO) Solutions - Page 4

How Many Single Sign-On (SSO) Solutions Products Does G2 Track?

Total Products under this Category: 175

Category Stats (Oct 2026)

  • Average Rating: 4.4/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: Okta (+0.15%) - Among all products in this category, Okta recorded the largest rating increase compared to last month

Last updated: October 07, 2026

How Does G2 Rank Single Sign-On (SSO) Solutions Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 18,600+ Authentic Reviews
  • 175+ Products
  • Unbiased Rankings

G2's software rankings are built on verified user reviews, rigorous moderation, and a consistent research methodology maintained by a team of analysts and data experts. Each product is measured using the same transparent criteria, with no paid placement or vendor influence. While reviews reflect real user experiences, which can be subjective, they offer valuable insight into how software performs in the hands of professionals. Together, these inputs power the G2 Score, a standardized way to compare tools within every category.

G2 Grid® for Single Sign-On (SSO) Solutions

G2 Grid® for Single Sign-On (SSO) Solutions plotting products by satisfaction and market presence

Highlighted products: Okta, Rippling IT, JumpCloud, Microsoft Entra ID, Cisco Duo, 1Password, LastPass, and Auth0.

Underlying data: [Grid® JSON](https://www.g2.com/categories/single-sign-on-sso/grids.json?focus%5B%5D=okta&focus%5B%5D=rippling-it&focus%5B%5D=jumpcloud&focus%5B%5D=microsoft-entra-id&focus%5B%5D=cisco-duo&focus%5B%5D=1password&focus%5B%5D=lastpass&focus%5B%5D=auth0)

Hideez Workforce Identity Service

Hideez Workforce Identity System is an innovative passwordless IAM platform that provides secure and user-friendly workforce authentication. It combines the benefits of passwordless Single Sign-On (SSO) and multi-factor authentication (MFA) with proximity-based Windows logins/logouts and password-based access to legacy apps, allowing employees to use a variety of modern authentication methods: - Passkeys integrated with personal devices (fingerprint/face recognition on Android, Touch/Face ID on iOS, and Windows Hello) - Hideez Authenticator app (iOS and Android) - Hideez Keys - Other FIDO-certified tokens (YubiKeys, Feitian, etc.) Hideez seamlessly integrates with Microsoft Active Directory and Azure AD, ensuring secure access to websites and apps and bridging the gap between password-based and passwordless authentication. On-premise deployment is available upon request, offering further customization and control. To learn more about Hideez and its products, please visit www.hideez.com.

Who Is the Company Behind Hideez Workforce Identity Service?

  • Seller: Hideez
  • Year Founded: 2017
  • HQ Location: Wilmington, US
  • LinkedIn® Page: www.linkedin.com
    12 employees on LinkedIn®

KillerID SSO

KillerID is the leading provider of Custom Single Sign On (SSO) login for Google Workspace domains, user account management automation, and domain level access protection.

Who Is the Company Behind KillerID SSO?

  • Seller: Netkiller
  • Year Founded: 2005
  • HQ Location: Palo Alto, California
  • Twitter: @netkiller_cloud
    54 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    32 employees on LinkedIn®

newauth SSO

newauth is a passwordless Single Sign-On provider that replaces passwords, SMS codes, and authenticator apps with something fundamentally different: users sign in by clicking their secret spots on images they've chosen. No typing, no second device, no codes to intercept. Under the hood it's standard OIDC + PKCE — the same protocol your existing identity stack already speaks. Drop newauth in as an identity source alongside or instead of what you run today. No migration, no rip-and-replace. How it works for users: During onboarding, users pick a secret spot on each image in a set chosen by their organisation — typically between 6 and 12. At sign-in, newauth presents a random subset of those images, different each time. Users click their spot on each one shown. The random selection means observing one sign-in doesn't reveal enough to replay it. Muscle memory does the work — sign-ins take seconds and get faster with each visit. How it works for security teams: There's no password database to breach, no SMS code to intercept, and no push prompt to fatigue-bomb. The credential is spatial and personal — it never transmits as a string, so it can't be phished the way a password can. Each user gets a pairwise pseudonymous identity per application, so cross-app tracking is structurally impossible. What's included: Image-click authentication, unlimited sign-ins, session validation and step-up authentication, per-app pairwise privacy, and consent management on all plans. Paid plans add custom domain. The free plan supports up to 50 active users with no credit card required — paid plans start at $3.00/user/mo. newauth is cloud-hosted. Pricing scales with active users: free up to 50, then $3.00/user/mo (Growth), $2.50 (Business, 2k–10k users), $2.00 (Scale, 10k–50k), and custom Enterprise above that.

Who Is the Company Behind newauth SSO?

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RCDevs Security Solutions

RCDevs offers a suite of cybersecurity products designed to enhance identity and access management (IAM) for businesses. Their product range focuses on providing secure authentication, seamless user experiences, and compliance with industry standards. Here’s an overview of key products: 1. RCDevs Authenticator: This is a versatile mobile app that enables users to authenticate their login using a combination of multiple methods, including push notifications, QR codes, and OTPs. The app is designed for easy deployment in enterprise environments and can be used for secure access to web applications, VPNs, and internal systems. 2. RADIUS Authentication: RCDevs offers RADIUS (Remote Authentication Dial-In User Service) integration to provide centralized authentication for users accessing remote networks or VPNs. This solution allows businesses to manage secure access to their networks and ensure that only authorized users can connect to critical resources. 3. SAML/OpenID Single Sign-On: RCDevs provides a Single Sign-On solution using SAML and OpenID-Connect, allowing users to log in once and access multiple services without having to re-enter credentials. This solution simplifies access management while maintaining strong security across applications and systems. 4. Identity Federation: RCDevs enables identity federation, allowing organizations to securely share identity information across different systems, both within the enterprise and with external partners. This feature ensures seamless access to applications across organizational boundaries while maintaining strict security controls. 5. Multi-Factor Authentication everywhere: RCDevs offers a multi-factor authentication solution specifically designed for VPN access, ensuring that users authenticate themselves through multiple factors (e.g., password + OTP, smartcard + biometrics) before being granted access to internal resources. 6. Customizable Authentication Solutions: RCDevs offers flexibility with customizable authentication methods, allowing organizations to tailor the solution to meet their specific security needs. This includes integrations with third-party systems, support for various token types, and the ability to create custom workflows for authentication processes. 7. Network Access Control: RCDevs’ NAC solution enables businesses to enforce security policies and authenticate devices before they are allowed to connect to the corporate network. RCDevs’ products are focused on offering scalable, flexible, and easy-to-use security solutions that help businesses protect against unauthorized access, enhance user experience, and comply with industry regulations.

Who Is the Company Behind RCDevs Security Solutions?

  • Seller: RCDevs
  • HQ Location: Esch-sur-Alzette, LU
  • Twitter: @RCDevs
    147 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    19 employees on LinkedIn®

Strata | Identity Orchestration

Strata Identity helps identity practitioners modernize their IAM infrastructure in record time and with lower effort—we do this through our Identity Orchestration platform, Maverics. Built for enterprises with complex hybrid and multi-cloud environments, Maverics leverages an innovative recipe-driven approach and enables seamless integration and management of multi-generational identity systems. All done without altering the user access experience or making changes to the applications. Our software decouples applications from identity, facilitating the implementation of modern authentication methods such as passwordless/MFA to any app and ensuring consistent access policies enforcement without the need for refactoring. The leadership team is made up of industry pioneers who have significantly contributed to the identity management space. They have established the IDQL (Identity Query Language) standard and created Hexa, an open-source software for multi-cloud policy orchestration. In addition, they are co-authors of the SAML standard for SSO federation, cementing their reputation as influential figures in the sector. To learn more about Strata Identity and our Identity Orchestration platform, Maverics, please visit our website: strata.io or connect with us on socials! Discover how we're revolutionizing identity management for hybrid and multi-cloud environments and explore ways we can reduce complexity and accelerate your identity objectives.

Who Is the Company Behind Strata | Identity Orchestration?

  • Seller: Strata Identity
  • Year Founded: 2019
  • HQ Location: Boulder, Colorado, United States
  • Twitter: @Strataidentity
    166 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    68 employees on LinkedIn®

SurePassID Authentication Server

SurePassID is a leading provider of authentication solutions for demanding critical infrastructure environments, including on-premise, air-gapped, and hybrid systems. SurePassID seamlessly secures users and applications across Information Technology (IT) and Operational Technology (OT) while maintaining physical/logical separation and meeting the latest Zero Trust mandates. SurePassID offers 6 Nines (99.9999%) of availability; passwordless, phishing-resistant multi-factor authentication (MFA); SAML 2.0 IdP on-prem or in the cloud; FIPS 140 and AES 256 cryptography; unmatched technical support; and a wealth of other features. To find out more, please visit www.surepassid.com.

Who Is the Company Behind SurePassID Authentication Server?

  • Seller: SurePassID
  • Year Founded: 2010
  • HQ Location: St. Petersburg, US
  • Twitter: @SurePassID
    43 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    8 employees on LinkedIn®
Brandon Summers-Miller
BS
Researched and written by Brandon Summers-Miller
Updated March 4, 2025