Best Free Authentication Software of 2025 - Page 2

LoginID's SKDs and APIs allow sites and apps to easily integrate our FIDO/FIDO2-certified multi-factor authentication solution. By leveraging the native biometrics on the end user's device, our platform creates a private/public key pair that enables strong customer authentication. The end user does not need to install any additional apps and the private key never leaves the secure area of their device. LoginID's transaction confirmation service is perfect for online merchants because it prompts a biometric action for each transaction which is then cryptographically signed. We are in alignment with PSD2, GDPR, CCPA, and HIPPA standards. LoginID has SDKs for iOS, Android, React-Native, Web, Python, Java, and Node as well as a WordPress Plugin.

Clerk offers a full-stack authentication and user management system designed for modern web applications. It provides secure APIs and drop-in UI components for sign-up, sign-in, user profiles, multi-factor authentication (MFA), and organization management. Clerk supports frameworks like Next.js, React, Vue, and Nuxt, with built-in OAuth, SSO, and RBAC (Role-Based Access Control). Focused on developer experience, Clerk eliminates the need to build authentication from scratch, ensuring security and scalability without sacrificing flexibility or control.

We offer the most user-friendly technology without sacrificing performance or features. We back it up with exceptional support and care delivered under a fair, cost-effective pricing model Our technology is used by small startups with big ideas, small budgets, and global enterprises. We love them all! Easy to use Load balancing, WAF, GSLB and SSO/Pre-Authentication. It is also the only true ADP Application Delivery Platform that allows for the enhancement of functionality and longevity using the app store or apps you create in-house.

Konfirmi offers a straightforward solution for integrating verification into your website or app, allowing for both standalone and combined usage. The variety of verification options includes 2 Factor Authentication (2FA), Multi Factor Authentication (MFA), SMS and email verification, age verification through Knowledge-Based Authentication (KBA) checks, customer name and address validation via KBA, biometric authentication, and Single Sign-On (SSO). This enables you to verify age, addresses, photo identification, and more with ease. Implementing Konfirmi is a swift process that can enhance any website or application while ensuring compliance with various regulations in the USA and beyond. Options are available for both small businesses and large enterprises. With its innovative, patent-pending technology, Konfirmi streamlines the verification of essential customer information such as age, physical addresses, email addresses, phone numbers, and photo IDs across various platforms, including user sign-up pages, e-commerce sites, contact forms, and surveys. Start utilizing Konfirmi today to elevate the security and reliability of your web-facing systems.

No matter the platform or device, we have the perfect solution for you. Explore our range of intuitive authentication options, including two-factor authentication (2FA) and passwordless biometric systems, to determine the most suitable setup for your organization and its users. You can initiate with 2FA and gradually adopt more sophisticated technologies such as biometric authentication, ensuring a continual enhancement of both user satisfaction and security measures. Our authentication service, built on a SaaS model, comes equipped with REST APIs, mobile SDKs, and UI widgets, enabling the creation of seamless omni-channel authentication experiences across various mediums including mobile, web, telephony, IoT, chatbots, kiosks, and physical access points. Take the responsibility of security off your users’ shoulders! We are dedicated to making advanced authentication technology accessible to all, contributing to a safer digital environment for everyone. ThumbSignIn offers affordable, scalable SaaS solutions designed to assist businesses in identifying the optimal approach to enhance their existing systems with robust two-factor authentication (2FA), ultimately fostering a culture of security. With our comprehensive offerings, companies can seamlessly integrate cutting-edge security while prioritizing user convenience.

Appwrite offers a cloud backend solution, simplifying the construction of your backend infrastructure with minimal coding across preferred languages and frameworks. This platform empowers developers to concentrate on creativity and design, minimizing the grind of backend development chores. Products Appwrite provides you with: - Authentication: 30+ login methods, support for teams, roles, and user labels - Databases: Never paused, fast in-memory caching, advanced permission models, relationships support - Storage: File encryption at rest and transit, built-in image transformation capabilities, advanced compression with WebP/Brotli support - Functions: Automatic deployment from GitHub - Messaging: SMS, email, and push notification support - Real-time: Unlimited subscriptions By utilizing Appwrites’ features, you save time and ensure your products are stable and secure for your end users. With Appwrite, you always own your data, so you never have to fear vendor lock-in.

Authgear provides a versatile authentication platform designed to assist businesses in effectively overseeing user management, reducing fraud, easing the burden of password management, and speeding up development timelines. It enables developers to swiftly incorporate various security features such as two-factor authentication, session management, magic links, biometric options, and social login into their applications, all within a matter of minutes. Moreover, Authgear includes an Admin Portal that facilitates the management of user access and sessions, while also allowing for the analysis of event logs, ensuring a comprehensive approach to user security and management. This combination of features not only enhances security but also streamlines the overall user experience.

You can control the distribution and access to your software product. You have many options to make your software product flexible. You can create short-term access keys, notify users when updates become available, view access logs, and even allow resellers to purchase new keys without having to contact you. Choose from registration-required or key-only authentication for each application. Your users will appreciate the speed if key-only authentication is what you prefer. Users can choose to verify their email address or their Discord account if they are required to register on System Locker. Our commitment to reliability is strong, even though hundreds of new users join every single day.

BotDelive provides a two-factor authentication (2FA) and push notification service through instant messaging bots designed specifically for developers. To get started, simply create an account on BotDelive and obtain your API credentials. Once you have that, you can dive into our API documentation to begin the integration process! You'll find that incorporating 2FA requires just two API endpoints. As a cloud communication platform tailored for developers, BotDelive facilitates the sending and receiving of 2FA and push notifications through popular chat applications using its APIs. Typically, developers are required to compel users to download an app for notifications. However, since chat applications are already present on millions of devices, why not take advantage of them? BotDelive streamlines the 2FA process, allowing users to authorize their accounts simply by responding to yes or no questions. With BotDelive, you can authenticate users more efficiently than using traditional email and password methods; just ask for the password once, and the service will manage all subsequent requests on your behalf. Additionally, you can send crucial push notifications seamlessly through chat applications, ensuring that your communications reach users reliably. By choosing BotDelive, you’re opting for a dependable solution that enhances user experience and security.

Sima offers more than merely blocking unauthorized individuals; it serves as a sophisticated cloud-based Access Control reader that prioritizes both security and user experience. Capable of processing mobile credentials like QR codes alongside facial biometrics, Sima's integrated software can provide either single-factor access through QR codes or multi-factor authentication via facial recognition for enhanced security tailored to specific facility needs. We are committed to safeguarding your privacy rigorously. Our facial recognition technology enables us to authenticate identities effectively, ensuring that access is granted only to verified individuals. The facial data collected is retained solely for identification purposes on our secure servers, and rest assured, your personal information, including images, will remain confidential and will not be disclosed to any third parties. Additionally, we continuously update our security measures to adapt to evolving threats, ensuring that your access remains both secure and seamless.

Aserto empowers developers to create secure applications effortlessly. It simplifies the integration of detailed, policy-driven, real-time access control into applications and APIs. By managing all the complexities associated with secure, scalable, and high-performance access management, Aserto streamlines the process significantly. The platform provides speedy authorization through a local library alongside a centralized control plane to oversee policies, user attributes, relationship data, and decision logs. It is equipped with the necessary tools to implement both Role-Based Access Control (RBAC) and more nuanced authorization frameworks like Attribute-Based Access Control (ABAC) and Relationship-Based Access Control (ReBAC). You can explore our open-source initiatives, such as Topaz.sh, which serves as a standalone authorizer deployable in your infrastructure, enabling fine-grained access control for your applications. Topaz allows the integration of OPA policies with Zanzibar's data model, offering unparalleled flexibility. Another project, OpenPolicyContainers.com (OPCR), enhances the security of OPA policies throughout their lifecycle by enabling tagging and versioning features. These tools collectively enhance the security and efficiency of application development in today's digital landscape.

Customers are requesting features that necessitate a significant refactor, as the existing code is manually crafted, delicate, and difficult to troubleshoot. This code is dispersed across the entire codebase and depends on information from various sources, making it challenging to manage. Currently, there is no centralized view to determine access permissions, verify the effectiveness of authorizations, or understand the reasons behind request approvals or denials. To address this, outline the access permissions within Workbench, our visual rules editor. Begin with fundamental elements for common scenarios such as multi-tenancy and Role-Based Access Control (RBAC). You can then enhance your authorization logic using custom rules in Polar, our specialized configuration language. Additionally, transmit essential authorization information, including roles and permissions, to streamline processes. Replace traditional IF statements and custom SQL with robust authorization checks and filtered lists based on these permissions, thereby improving efficiency and clarity in managing access control. A well-structured system not only simplifies authorization management but also enhances overall security and functionality.

MonoCloud is a developer-oriented platform that simplifies authentication, authorization, and user management across a range of platforms, including web, mobile, and IoT devices. It allows developers to easily incorporate secure and customizable login flows, supporting multiple authentication methods such as passwords, magic links, one-time passcodes, and social logins from providers like Google, Facebook, and Apple. With a focus on reducing user friction, MonoCloud provides a seamless and branded authentication experience. The platform includes advanced features like mutual TLS, brute-force protection, and global session management, offering a complete solution for managing user access across various applications and devices. Additionally, MonoCloud supports a developer-friendly approach with comprehensive documentation, integration guides, and compatibility with various front-end and back-end frameworks, enabling developers to implement robust authentication solutions efficiently and effectively.

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.

ZITADEL serves as an open-source platform for identity and access management, aiming to streamline the processes of authentication and authorization for various applications. It encompasses a robust array of features, including customizable login pages, compatibility with contemporary authentication techniques like Single Sign-On (SSO) and social logins, as well as the implementation of multifactor authentication to bolster security measures. Developers have the option to either integrate ZITADEL’s APIs into their applications for direct authentication or create specialized login interfaces tailored to their needs. Furthermore, the platform's role-based access control mechanism allows for meticulous permission management tailored to specific user roles, and its multi-tenant architecture makes it easy to extend applications to accommodate new organizations. ZITADEL's flexibility not only supports diverse workflows and user management processes but also adheres to brand guidelines, with features such as ZITADEL Actions enabling the execution of workflows triggered by specific events without necessitating further code deployments. As a result, ZITADEL is an adaptable solution for businesses looking to enhance their identity management strategies efficiently.

NextAuth.js is a popular open-source authentication framework specifically designed for Next.js applications, providing smooth integration with well-known services such as Google, Facebook, Auth0, and Apple. It accommodates a range of authentication techniques, which include OAuth 1.0 and 2.0, email and passwordless sign-ins, as well as custom username and password solutions. Built with versatility in mind, NextAuth.js functions effectively in serverless settings and is compatible with various databases like MySQL, PostgreSQL, MSSQL, and MongoDB, giving developers the option to utilize either database sessions or JSON Web Tokens (JWT). To ensure security, it incorporates features like signed and prefixed server-only cookies, HTTP POST with CSRF token checks, and encrypted JWTs that adhere to JWS, JWE, and JWK standards. The framework is designed for quick implementation, allowing developers to integrate authentication features within minutes while requiring minimal configuration. In addition, extensive documentation and an active community contribute to its user-friendliness, making it an excellent choice for developers in search of a reliable authentication solution. Ultimately, NextAuth.js streamlines the integration process, empowering developers to focus more on building their applications rather than getting bogged down in authentication complexities.

Auth.js is a library for authentication that is open-source and crafted to work effortlessly with contemporary JavaScript frameworks, delivering a secure and adaptable authentication process. It accommodates a range of authentication techniques, such as OAuth options like Google and GitHub, traditional credentials, and WebAuthn, enabling developers to select the best-fitting method for their projects. This library is compatible with various frameworks, including Next.js, SvelteKit, Express, Qwik, and SolidStart, which allows for the implementation of authentication across diverse platforms. Additionally, Auth.js comes with built-in integration for widely-used databases like Prisma, Drizzle ORM, Supabase, Firebase, and TypeORM, making user data management straightforward. To ensure the safety of user information, it features security measures such as signed cookies, validation of CSRF tokens, and encrypted JSON Web Tokens (JWTs). Furthermore, Auth.js is optimized for performance in serverless settings, and it provides thorough documentation along with examples to assist developers. Overall, its versatility and robustness make Auth.js an excellent choice for building secure authentication systems in a variety of applications.

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.

IdentityServer serves as a versatile and standards-adhering framework for OpenID Connect and OAuth 2.0 tailored for ASP.NET Core, ensuring complete control over user interface, user experience, business logic, and data management. It has received official certification from the OpenID Foundation and encompasses a wide array of protocols and standards developed by the OpenID Foundation and IETF working groups. Additionally, it presents limitless hosting possibilities, facilitating deployment on-premises, in cloud environments, behind VPNs, and on various platforms such as Windows, Linux, Docker, or Kubernetes. Duende Software enhances this offering with supplementary products, including IdentityServer for Redistribution and a Backend for Frontend (BFF) security framework. To assist developers in effectively utilizing these solutions, extensive documentation and training resources are readily accessible. Our commitment to being fully compliant with standards is paramount, and we strive to provide you with comprehensive access to all facets of the OAuth and OpenID Connect protocol family. Furthermore, this approach empowers organizations to implement secure authentication and authorization processes tailored to their specific needs.

FreeRADIUS is a robust, highly efficient, and modular open-source RADIUS solution that encompasses a server, client library, development libraries, and a variety of additional tools. It stands as the most widely utilized RADIUS server worldwide, serving as the backbone for prominent Internet Service Providers and telecom companies, and is instrumental in powering eduroam, the global Wi-Fi roaming service for educational institutions. This software boasts support for a diverse array of authentication protocols, which include PAP, CHAP, and all types of EAP, such as EAP-TLS, EAP-TTLS, and EAP-PEAP with EAP-MSCHAP. Its modular architecture facilitates adaptable configurations, allowing for conditional processing of requests, integration with LDAP and SQL databases, and the ability to run external scripts. The support for virtual servers simplifies intricate implementations while also minimizing maintenance expenses. Additionally, FreeRADIUS accommodates more than 100 vendor-specific attributes, guaranteeing compatibility with numerous network access servers and contributing to its widespread adoption in various settings.

WSO2 Identity Server API-driven is built on open standards and offers the option of cloud, hybrid, or on-premise deployments. It is highly extensible and can support complex IAM requirements. WSO2 Identity Server allows you to do single sign-on as well as identity federation. It is backed up by strong and adaptive authentication. Securely expose APIs and manage identities by connecting with heterogeneous user accounts. Open-source IAM can be used to innovate quickly and to build secure Customer IAM solutions (CIAM) to deliver a user-friendly experience.

VerifyKit offers a user-friendly verification solution that enables seamless app sign-ups without requiring a phone number or one-time password for authentication. In addition to its reliability and customization options, it provides users with the flexibility to select their preferred verification platform, such as WhatsApp, Telegram, or SMS, enhancing their overall experience. This adaptability ensures that users can engage with the app in a way that suits them best.

Super Gluu is a mobile application designed for push-notification two-factor authentication (2FA) that seamlessly integrates with the Gluu Server. It employs public-key encryption in accordance with the FIDO U2F authentication standard. During the device enrollment process, Super Gluu registers its public key with the FIDO U2F endpoint of the Gluu Server. Authentication involves a challenge-response mechanism to verify that the device possesses the corresponding private key. This solution enhances identity and access management for customers, citizens, and remote employees alike. Super Gluu is readily compatible with the Gluu Server, requiring just a simple activation for use. Strong access security can be achieved with minimal effort, as easy as approving a push notification. The Gluu Server and Super Gluu can function effectively within the same network, without needing a DNS hostname or relying on a standard certificate. However, it is essential that both components remain within the same network for optimal performance. This streamlined approach facilitates secure access while minimizing complexity for users.

Asgardeo simplifies the process of incorporating secure authentication flows into applications through a few straightforward steps. It allows for seamless integration with single-page applications, traditional web applications, and mobile platforms. The solution includes SDKs that support a variety of technology stacks, making it versatile for developers. Users can implement social sign-ins with major platforms like Google, Facebook, and GitHub using ready-made templates, with plans for additional options in the future. The system allows for the configuration of external identity providers that connect via established protocols such as OpenID Connect and SAML. Administrators can efficiently manage their customers, employees, and partners using the default onboarding and management workflows provided. Asgardeo also gives the choice to utilize its own directory service or connect to existing LDAP or Active Directory systems through an agent. For two-factor authentication, developers can select from multiple methods, including Email OTP, SMS OTP, and TOTP, ensuring a high level of security. Users can define intricate multi-step processes and tailor configurations to meet specific user needs. By leveraging Asgardeo, developers can enhance the overall user experience by concentrating on business logic while ensuring that login and secure access are reliably maintained for end-users. This comprehensive approach not only streamlines the authentication process but also fortifies the security framework within applications.

Studid allows students, researchers, and educators to authenticate natively using the SSO (Single Log-on) Service at their institution.