# Top Free Single Sign-On (SSO) Solutions - Page 3 ## How Many Single Sign-On (SSO) Solutions Products Does G2 Track? **Total Products under this Category:** 172 ### Category Stats (Jul 2026) - **Average Rating:** 4.4/5 The average rating of products in this category, based on all submitted ratings - **Top Trending Product:** ID.me (+1.62%) - Among all products in this category, ID.me recorded the largest rating increase compared to last month _Last updated: July 23, 2026_ ## How Does G2 Rank Single Sign-On (SSO) Solutions Products? **Why You Can Trust G2's Software Rankings:** - 30 Analysts and Data Experts - 18,000+ Authentic Reviews - 172+ 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. [ Proton Pass For Business ](https://www.g2.com/products/proton-pass-for-business/reviews) By [Proton AG](https://www.g2.com/sellers/proton-ag) [ 4.7/5(110) ](https://www.g2.com/products/proton-pass-for-business/reviews) What do users say? Users consistently praise the product for its strong security and ease of use, highlighting its ability to manage passwords securely across multiple devices. The integration with other Proton services Pros and Cons [ Ease of Use (2) ](https://www.g2.com/products/proton-pass-for-business/reviews?qs=pros-and-cons)[ Folder Management (1) ](https://www.g2.com/products/proton-pass-for-business/reviews?qs=pros-and-cons) [ OptimalCloud ](https://www.g2.com/products/optimalcloud/reviews) By [Optimal IdM](https://www.g2.com/sellers/optimal-idm) [ 4.6/5(23) ](https://www.g2.com/products/optimalcloud/reviews) What do users say? Users consistently praise the ease of use and excellent customer support provided by the platform, highlighting its smooth setup and quick response times to issues. The ability to securely manage acce [![G2 Advertising](/assets/my-g2-logo-41632af6f81a240a0a9886638f412b2ac9a29f4001534f8c83be89a58ef9d45d.svg "G2 Advertising")](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. [ Learn More ](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) [ Entrust Identity as a Service ](https://www.g2.com/products/entrust-identity-as-a-service/reviews) By [Entrust, Inc.](https://www.g2.com/sellers/entrust-inc) [ 4.4/5(11) ](https://www.g2.com/products/entrust-identity-as-a-service/reviews) What do users say? Users consistently praise the product for its ease of use and effective security features, making it a reliable choice for managing digital identities. Many appreciate its ability to provide seamless [ Avatier Identity Anywhere ](https://www.g2.com/products/avatier-identity-anywhere/reviews) By [Avatier](https://www.g2.com/sellers/avatier) [ 4.6/5(31) ](https://www.g2.com/products/avatier-identity-anywhere/reviews) What do users say? Users consistently praise the product for its ease of use and automation capabilities, which significantly streamline password management and account provisioning tasks. Many appreciate how it empower [ Admin By Request ](https://www.g2.com/products/admin-by-request/reviews) By [Admin By Request](https://www.g2.com/sellers/admin-by-request) [ 4.8/5(16) ](https://www.g2.com/products/admin-by-request/reviews) What do users say? Users consistently praise the product for its ease of use and effective management of administrative rights, which enhances productivity while maintaining security. The seamless integration into exist Pros and Cons [ Ease of Use (5) ](https://www.g2.com/products/admin-by-request/reviews?qs=pros-and-cons)[ Setup Difficulties (2) ](https://www.g2.com/products/admin-by-request/reviews?qs=pros-and-cons) [ ProID Workforce Identity ](https://www.g2.com/products/proid-workforce-identity/reviews) By [MONET+](https://www.g2.com/sellers/monet) [ 4.7/5(32) ](https://www.g2.com/products/proid-workforce-identity/reviews) What do users say? Users consistently praise the product for its ease of use and reliable security, highlighting how it simplifies authentication processes across various platforms. The integration with existing systems Pros and Cons [ Security (14) ](https://www.g2.com/products/proid-workforce-identity/reviews?qs=pros-and-cons)[ Delay Issues (1) ](https://www.g2.com/products/proid-workforce-identity/reviews?qs=pros-and-cons) [ SSOJet ](https://www.g2.com/products/ssojet/reviews) By [SSOJet](https://www.g2.com/sellers/ssojet) [ 4.4/5(6) ](https://www.g2.com/products/ssojet/reviews) Product Description SSOJet: Streamlined Enterprise SSO Integration for B2B SaaS SSOJet eliminates the engineering nightmare of building custom SSO integrations for enterprise customers. Instead of spending weeks or mo Pros and Cons [ Easy Setup (3) ](https://www.g2.com/products/ssojet/reviews?qs=pros-and-cons)[ Missing Features (2) ](https://www.g2.com/products/ssojet/reviews?qs=pros-and-cons) [ cidaas ](https://www.g2.com/products/cidaas/reviews) By [WidasConcepts](https://www.g2.com/sellers/widasconcepts) [ 4.3/5(3) ](https://www.g2.com/products/cidaas/reviews) Product Description cidaas, the European cloud identity and access management system from Widas ID GmbH, delivers an out-of-the-box solution for federated identities, single sign-on and multi-factor authentication. With [ Zaperon Identity-centric... ](https://www.g2.com/products/zaperon-identity-centric-sse-platform/reviews) By [Zaperon](https://www.g2.com/sellers/zaperon) [ 4.7/5(9) ](https://www.g2.com/products/zaperon-identity-centric-sse-platform/reviews) Product Description Today, enterprises are going through rapid transformation with their workforce becoming hybrid, applications moving to cloud and personal devices being allowed. Organizations expose themselves to cybe Pros and Cons [ Security (8) ](https://www.g2.com/products/zaperon-identity-centric-sse-platform/reviews?qs=pros-and-cons)[ Complex Configuration (2) ](https://www.g2.com/products/zaperon-identity-centric-sse-platform/reviews?qs=pros-and-cons) [ Thales OneWelcome Identity... ](https://www.g2.com/products/thales-onewelcome-identity-platform/reviews) By [Thales Group](https://www.g2.com/sellers/thales-group) [ 4.8/5(2) ](https://www.g2.com/products/thales-onewelcome-identity-platform/reviews) Product Description The Thales OneWelcome Identity Platform is a cloud-based identity and access management solution designed to deliver secure, frictionless digital experiences for all external identities, including cus Pros and Cons [ Access Management (1) ](https://www.g2.com/products/thales-onewelcome-identity-platform/reviews?qs=pros-and-cons)[ Complex Setup (2) ](https://www.g2.com/products/thales-onewelcome-identity-platform/reviews?qs=pros-and-cons) [ Gluu ](https://www.g2.com/products/gluu/reviews) By [Gluu](https://www.g2.com/sellers/gluu-2f8c8b4e-8a2d-4043-a844-915ec1321d77) [ 4.5/5(1) ](https://www.g2.com/products/gluu/reviews) Product Description The free open source Gluu Server enables organizations to centralize their authentication and authorization service and leverage standards such as OpenID Connect, UMA, and SAML 2.0 to achieve federate [ Plurilock ](https://www.g2.com/products/plurilock/reviews) By [Plurilock](https://www.g2.com/sellers/plurilock) [ 4/5(1) ](https://www.g2.com/products/plurilock/reviews) Product Description Plurilock AI is an award-winning Cloud Access Security Broker (CASB), Data Loss Prevention (DLP) and Single Sign-On (SSO) platform built for small to medium businesses, and priced to meet their budget Pros and Cons [ Access Control (1) ](https://www.g2.com/products/plurilock/reviews?qs=pros-and-cons)[ Integration Issues (1) ](https://www.g2.com/products/plurilock/reviews?qs=pros-and-cons) [ SuperTokens ](https://www.g2.com/products/supertokens/reviews) By [SuperTokens](https://www.g2.com/sellers/supertokens) [ 5/5(1) ](https://www.g2.com/products/supertokens/reviews) Product Description SuperTokens is an open source user authentication solution backed by Y-Combinator. We're an alternative to Auth0, Firebase Auth and AWS Cognito. Using our SDKs developers can add secure, hassle free a [ Zoho Directory ](https://www.g2.com/products/zoho-directory/reviews) By [Zoho](https://www.g2.com/sellers/zoho-b00ca9d5-bca8-41b5-a8ad-275480841704) [ 4/5(2) ](https://www.g2.com/products/zoho-directory/reviews) Product Description Zoho Directory is a unified workforce identity and access management (IAM) solution that helps businesses of all sizes centrally manage user identities, application access, connected devices, and netw [ Bravas ](https://www.g2.com/products/bravas/reviews) By [Bravas](https://www.g2.com/sellers/bravas) [ 0/5(0) ](https://www.g2.com/products/bravas/reviews) Product Description ### Revolutionize Your SME's IT Management with Bravas.io Are you a startup or small-to-medium enterprise (SME) struggling to manage your IT infrastructure and secure your devices and users? Look no f [![G2 Advertising](/assets/my-g2-logo-41632af6f81a240a0a9886638f412b2ac9a29f4001534f8c83be89a58ef9d45d.svg "G2 Advertising")](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) Sponsored G2 Advertising Get 2x conversion than Google Ads with G2 Advertising! G2 Advertising places your product in premium positions on high-traffic pages and on targeted competitor pages to reach buyers at key comparison moments. [ Learn More ](https://sell.g2.com/case-studies/how-aisdr-uses-g2-ads-to-turn-g2-into-top-5-traffic-source) - [‹ Prev‹ Prev](/categories/single-sign-on-sso/free?order=g2_score&page=2#product-list) - [1](/categories/single-sign-on-sso/free?order=g2_score#product-list) - [2](/categories/single-sign-on-sso/free?order=g2_score&page=2#product-list) - 3 - [4](/categories/single-sign-on-sso/free?order=g2_score&page=4#product-list) - [Next ›Next ›](/categories/single-sign-on-sso/free?order=g2_score&page=4#product-list) Spotlight Categories [Help Desk Software](https://www.g2.com/categories/help-desk) [Accounting Software](https://www.g2.com/categories/accounting) [Expense Management Software](https://www.g2.com/categories/expense-management) [Digital Asset Management Software](https://www.g2.com/categories/digital-asset-management) [Generative AI Infrastructure Software](https://www.g2.com/categories/generative-ai-infrastructure) Similar Categories - [Multi-Factor Authentication (MFA)](/categories/multi-factor-authentication-mfa) - [Biometric Authentication](/categories/biometric-authentication) - [Cloud Directory Services](/categories/cloud-directory-services) - [Customer Identity and Access Management (CIAM)](/categories/customer-identity-and-access-management-ciam) - [Decentralized Identity](/categories/decentralized-identity) - [Identity and Access Management (IAM)](/categories/identity-and-access-management-iam) - [Passwordless Authentication](/categories/passwordless-authentication) - [Password Managers](/categories/password-managers) - [Password Policy Enforcement](/categories/password-policy-enforcement) - [Privileged Access Management (PAM)](/categories/privileged-access-management-pam) - [Risk-Based Authentication (RBA)](/categories/risk-based-authentication-rba) - [Self-Service Password Reset (SSPR) Tools](/categories/self-service-password-reset-sspr-tools) - [User Provisioning and Governance Tools](/categories/user-provisioning-and-governance-tools) [Browse Single Sign-On (SSO) Themes](/categories/single-sign-on-sso/themes)