List of the Top 9 Passwordless Authentication Software for OpenVPN in 2025

Auth0 adopts a contemporary method for managing identity, allowing organizations to ensure secure access to applications for all users. It offers a high degree of customization while remaining both straightforward and adaptable. Handling billions of login transactions every month, Auth0 prioritizes convenience, privacy, and security, enabling customers to concentrate on their innovative efforts. Furthermore, Auth0 facilitates quick integration of authentication and authorization processes across web, mobile, and legacy applications, featuring advanced Fine Grained Authorization (FGA) that expands the capabilities of traditional role-based access control, thereby enhancing security measures overall.

Experience a seamless sign-in process without the need for passwords by simply entering your username and confirming your identity via your mobile device—it's that easy! Unlike traditional passwords, which can be forgotten or compromised, the Authenticator app provides an extra layer of security with your PIN or fingerprint. This reliable tool allows you to access various services, including Outlook, OneDrive, and Office, effortlessly. Protect your accounts effectively by using two-step verification for enhanced security. Additionally, the app fortifies your online safety by generating time-based one-time password (OTP) codes, ensuring comprehensive protection for your accounts. With these advanced features, you can navigate the digital landscape confidently and securely, all while eliminating the stress of managing complex passwords. Enjoy the freedom of a password-free lifestyle, making your online interactions not only simpler but also more secure than ever before.

A single platform offers endless opportunities to engage with both your customers and staff. Any application can be made secure with authentication capabilities. Okta enables you to swiftly develop experiences that are both secure and enjoyable. By integrating Okta's Customer ID products, you can assemble the necessary framework to ensure security, scalability, and dependability. Safeguard and empower your employees, contractors, and partners effectively. Okta’s workforce identification solutions ensure that your employees remain protected regardless of their location. You will be equipped with essential tools to streamline cloud transitions and facilitate hybrid work environments. Trusted by organizations worldwide, Okta is committed to safeguarding workforce identities while promoting seamless connectivity across various platforms. This reliability and trust make Okta a go-to choice for businesses aiming to enhance their security infrastructure.

Numerous developers do not realize that an incredibly powerful solution for user management, authentication, and authorization, including the creation of tailored login and signup interfaces, is entirely free and open-source: Keycloak 🤯. While it’s free, the responsibility for its setup and ongoing maintenance falls on you as your application grows, leading to various hurdles we aim to address: Awareness: Many developers and organizations remain in the dark about Keycloak's ability to fulfill all their identity and access management (IAM) needs. Cost: Numerous companies incur hefty expenses with their current Identity as a Service (IDaaS) providers. Maintenance: Firms already utilizing Keycloak often encounter difficulties in managing the related maintenance tasks and ensuring compliance with regulations for sensitive information. Skycloak offers a managed Keycloak solution that delivers enterprise-level identity and access management features without the intricacies of overseeing your own infrastructure. By integrating Keycloak’s powerful capabilities with additional tools and services, Skycloak significantly improves both security and the overall development experience for users. As a result, organizations can focus on their core objectives rather than get bogged down by IAM complexities.

Cyphercor provides a top-notch two-factor authentication solution known as "LoginTC," which is designed to be user-friendly, efficient, and affordable. This robust system enhances the security of various applications and systems, including VPNs, firewalls, remote desktop access, and active directory. With LoginTC, end-users can choose from a diverse array of two-factor authentication methods such as SMS, email, push notifications, hardware tokens, U2F, OTP, and bypass codes, ensuring flexibility and convenience. Additionally, utilizing LoginTC can assist organizations in minimizing their insurance expenses while effortlessly adhering to compliance standards. By implementing such an advanced security measure, businesses can also foster greater trust with their clients.

Sign up for the V-Key Smart Authenticator today and take advantage of a free one-month trial. Trust plays a crucial role in both business operations and personal connections. Are your employees remote? Do you oversee a large number of users needing access to essential applications or systems? As more companies implement multi-factor authentication (MFA), depending only on passwords has proven to be insufficient. Additionally, SMS one-time passwords (OTPs) have demonstrated vulnerabilities, making them targets for interception and phishing attacks. While hardware tokens can enhance security, they come with high costs, risks of being lost or stolen, and can create inconvenience for users, along with the need for regular replacements. The V-Key authenticator presents a secure and flexible MFA solution that is not only budget-friendly but also perfectly tailored for small to medium-sized enterprises. It easily integrates with various enterprise applications, systems, and VPNs, thereby providing a significant boost to overall security. Achieve multi-factor authentication that meets enterprise-grade standards in just three simple steps, making it a smart option for businesses looking to strengthen their security protocols further. Experience the peace of mind that comes with a reliable authentication solution.

Many employees perceive passwords as a hassle, akin to the difficulties you may face in addressing the challenges they present. The growing number of passwords and tokens not only heightens security vulnerabilities but also contributes to user exhaustion and increased costs. A shift away from passwords seems imperative at this juncture. A striking 89% of security professionals advocate for the adoption of advanced multi-factor authentication solutions that provide continuous, behavior-based verification as a means to significantly bolster organizational security. Acceptto offers a cutting-edge Intelligent MFA that smoothly facilitates access to applications while continuing to authenticate users post-login. This innovative approach effectively prevents account takeovers, even in cases where cybercriminals have acquired passwords. ItsMe™ Intelligent Multi-Factor Authentication enhances security by verifying access attempts on registered devices in real-time through various methods such as push notifications or verification codes (SMS, TOTP, email, etc.). You can also choose from options like time-based one-time passwords (TOTP), security keys, or biometric authentication, enabling secure verification of access even when offline. Consequently, this ensures reassurance for both users and administrators, fostering a more secure digital environment.

1Kosmos enables individuals, clients, and employees to engage with digital services securely by offering passwordless access. The BlockID platform integrates identity verification with robust authentication methods, establishing a decentralized digital identity that safeguards against identity theft, account compromise, impersonation, and fraudulent activities, all while ensuring a seamless experience for users. Notably, BlockID stands out as the sole platform certified by NIST, FIDO2, and iBeta, executing millions of authentications each day for key players in the banking, telecommunications, and healthcare sectors worldwide. This comprehensive approach not only enhances security but also builds trust among users, ensuring that their identities are protected in an increasingly digital landscape.

Acceptto monitors user activities, transactions, and application interactions to create comprehensive user profiles across different platforms, aiding in the assessment of access legitimacy and the identification of potential security threats. The system functions independently of traditional passwords or tokens. Its risk assessment engine evaluates the authenticity of access attempts by analyzing user and device behavior before, during, and after the authentication phase. In today's environment where identity-related threats are prevalent, we provide a system for continuous and adaptive authentication, paired with real-time threat detection capabilities. Our innovative risk scoring framework, powered by cutting-edge AI and machine learning technologies, establishes a dynamic level of assurance (LoA) for each access request. Furthermore, our approach autonomously determines the most effective security policies tailored to each transaction, thereby enhancing security while minimizing user disruption through insights derived from AI and machine learning. This enables users to experience a smooth interaction with applications, all the while ensuring robust security protocols for organizations facing an ever-changing threat landscape. Consequently, Acceptto not only safeguards critical data but also promotes trust and operational efficiency within organizations, creating a safer digital environment for all stakeholders involved.