Best Authentication Software for Linux
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Compare the Top Authentication Software for Linux as of October 2026
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What is Authentication Software for Linux?
Authentication software verifies the identity of users or devices before granting access to systems, applications, or data, ensuring security and preventing unauthorized access. It supports various methods such as passwords, biometrics, multi-factor authentication (MFA), token-based authentication, and single sign-on (SSO) to provide flexible and robust identity verification. The software integrates with identity management systems and security frameworks to enforce access policies and monitor authentication events. By enhancing security and user experience, authentication software is critical for protecting sensitive information in industries like finance, healthcare, and government. It helps organizations comply with regulatory requirements and reduce the risk of breaches. Compare and read user reviews of the best Authentication software for Linux currently available using the table below. This list is updated regularly.
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FusionAuth
FusionAuth
FusionAuth provides a comprehensive authentication platform designed for flexibility, security, and developer ease. It supports a wide range of authentication methods including username/password, passwordless, multi-factor authentication (MFA), and social logins. FusionAuth is built API-first, allowing seamless integration into any tech stack or architecture. It supports industry protocols like OAuth2, OIDC, and SAML for secure and standards-compliant authentication. Whether deployed on-premises, in the cloud, or in hybrid environments, FusionAuth gives you full control over the user login experience while helping you meet compliance requirements such as GDPR, HIPAA, and COPPA.Starting Price: $0 -
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Sumsub
Sumsub
Sumsub provides secure, AI-powered authentication as part of a single platform that unifies identity verification, fraud prevention, and ongoing monitoring. Instead of stitching together separate authentication tools, businesses get continuous trust signals that carry through the entire customer lifecycle, reducing friction while keeping bad actors out. Powered by Summy AI and MCP connectivity, teams can build and adjust authentication workflows quickly as risk levels or user segments change, without adding headcount. This makes Sumsub suited for regulated industries such as financial services, crypto, and mobility operating across 220+ countries and territories. Recognized as a Leader by Gartner, Forrester, IDC, Liminal, and KuppingerCole, Sumsub is trusted by more than 4,000 clients, including Vodafone, Duolingo, and Avis, to authenticate users securely at scale.Starting Price: $1.35 per verification -
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MIRACL
MIRACL
World's fastest MFA with the highest login success rate above 99%. Highly secure, password-free login in just two seconds. MIRACL works on any device or browser, removing the barriers to authentication to optimise the the user experience, decrease costs, and win lost revenue. Protect your users. Simplify their journey. MIRACL Trust offers a safer, smoother authentication experience. One step. No passwords. No problem. Traditional multi-factor authentication is slow and cumbersome. MIRACL is a smoother, safer alternative to traditional MFA. 2 seconds to log in with error rates as low as 1/10th that of passwords. No passwords necessary. One PIN, and you’re in. Our cryptographic technology means that user info stays with users. MIRACL Trust offers an effortless login experience that puts users first, rolls out hassle-free, and keeps data locked up tight. PSD2 SCA compliant, GDPR compliant and satisfies NJ Gaming MFA requirements. -
4
LastPass
LastPass
LastPass is a cloud-based password manager available on any system or device, ensuring credentials are protected, private, and always within reach. Simple to set up and effortless to use, LastPass delivers the world's most convenient password management experience for consumers and businesses of all sizes and technical requirements. Say goodbye to password fatigue by generating, sharing, accessing, and managing credentials at the click of a button, while preventing bad actors from accessing precious data and account logins. Businesses also utilize LastPass to consolidate their tech stacks or to fill access management gaps with native integrations for MS Entra, Okta, and other IdPs and IAMs. With over 100 customizable policies, flexible privileges, detailed reporting, MFA and passwordless authentication options, LastPass makes it easy for organizations with numerous logins and increasing security risks to standardize password management company wide.Starting Price: $4 per user per month -
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Cipherise
Cipherise
With over 5000 SAML integrations, experience seamless and secure connections with Cipherise - the platform that offers infinite ways to connect with your employees and customers. By integrating with Cipherise, you can easily build authentication into any app, and offload customer identity management to create delightful experiences quickly. With Cipherise's mutual, bi-directional authentication, you get the security, scalability, reliability, and flexibility to build the stack you need. You will know the person who registered continues to be that person, and they know you are you. Plus, you can protect and enable your employees, contractors, and partners with Cipherise enterprise solutions - no matter where they are. One of the key features, that separate Cipherise from all others - Cipherise eliminates Mass Data Breaches. An attack is limited to one user on one system. Additionally, we store no passwords. Cipherise streamlines your identity and access management needs.Starting Price: $30 per user per month -
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LoginRadius
LoginRadius
LoginRadius empowers businesses to deliver a delightful customer experience without compromising security. Using our customer identity platform, companies can offer a streamlined login process while protecting digital accounts and complying with data privacy regulations. LoginRadius serves over 3,000 businesses with a monthly reach of 700 million users worldwide. Key platform features include registration services, adaptive security, integration with third-party applications, and customer insights. The company has been named an industry leader in customer identity and access management (CIAM) by Gartner, KuppingerCole, and Computer Weekly. Microsoft is a major technology partner and investor. LoginRadius is headquartered in Vancouver, Canada, with additional offices in Toronto, USA, United Kingdom, Australia, and India. LoginRadius Services: API Authentication OAuth Data Management Secure Login Single Sign On SAML SSO Social Sign On Two Factor Authentication -
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Skillmine Auth
Skillmine Technology Consulting
Skillmine Auth is a comprehensive Identity and Access Management (IAM) platform that enables organizations to securely manage user identities, access control, and authentication across all business applications. It supports modern standards like SAML, OAuth 2.0, and OpenID Connect, along with custom authentication for legacy systems. Skillmine Auth offers flexible deployment options (Cloud or On-Premises) and integrates seamlessly with Active Directory, HRMS, and other enterprise systems to deliver unified and secure user experiences. -
8
Rublon
Rublon
Rublon enables your workforce to securely access your organization's networks, servers and applications. Protect your data via easy-to-use multi-factor authentication and comply with data protection regulations like GDPR. Deploy Rublon organization-wide, enabling MFA for all your cloud apps, VPNs, servers, workstations, internal as well as on-premise apps.Starting Price: $1/month/user -
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Routee
AMD Telecom
Routee is an intelligent omnichannel communication platform (CPaaS) offering advanced Web and API automation for all industries worldwide. Powered by AMD Telecom’s robust infrastructure, Routee's services enable businesses to optimize their marketing & business processes. -SMS Marketing: tailor-made messages based on customers' individual preferences -Email Marketing: personalized newsletters & email campaigns based on an audience's behavioral data -Transactional Email: automated emails to customers on important data regarding their transactions -Marketing Automation: rich forms & customer data capture, automation of repetitive marketing tasks, and tracking of marketing campaigns -Two Factor Authentication: a second layer of security with fallback through SMS, Voice, Viber & Missed Call -Cloud IVR: multilingual capabilities, turning speech into text, & text to human-sounding speech -Push Notification: personalized web & mobile push notifications, based on segmentation and userStarting Price: $0.01 one-time fee -
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OpenIAM
OpenIAM
Identity Governance and Web Access Management. As new employees join your organization, you face the conundrum of ensuring that they are given rights to all the systems and resources they need to do their work on the day they join the firm. Similarly, when a person changes positions within the firm, access that is no longer relevant must be revoked and access that is needed for their new position must be granted. For the situation of users leaving the firm or being terminated, it is even more imperative that permissions be addressed. Access to sensitive applications and data must be disabled/removed in a timely manner with traceability to avoid the consequences of a disgruntled user. -
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Silverfort
Silverfort
Silverfort’s Unified Identity Protection Platform is the first to consolidate security controls across corporate networks and cloud environments to block identity-based attacks. Using innovative agentless and proxyless technology, Silverfort seamlessly integrates with all existing IAM solutions (e.g., AD, RADIUS, Azure AD, Okta, Ping, AWS IAM), extending coverage to assets that could not previously have been protected, such as legacy applications, IT infrastructure, file systems, command-line tools, and machine-to-machine access. Our platform continuously monitors all access of users and service accounts across both cloud and on-premise environments, analyzes risk in real time, and enforces adaptive authentication and access policies. -
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TrustBuilder
TrustBuilder
TrustBuilder is your reliable partner in cybersecurity. We go beyond the traditional software firm role, focusing on delivering robust and secure solutions that foster trust among enterprises. Through our Access Management Platform, TrustBuilder.io, our commitment is to ensure the secure digital journey of your employees, partners, and customers. With our advanced MFA and CIAM technology, we provide uninterrupted access while safeguarding identities. > TrustBuilder's SaaS MFA provides airtight, phishing-resistant security, passwordless experience, and seamless integration. > TrustBuilder's tailor made CIAM provides PBAC delivering fine grained authorization based on attributes with customisable workflows.Starting Price: € 10 per user / per year -
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Aerobase
Aerobase
Aerobase is an open-source Identity and access management (IAM) platform that specializes in identity federation, SSO, strong & adaptive authentication, access control, account management & identity provisioning, API & microservices security and privacy regulation. This guide helps you get started with Aerobase. It covers server configuration and use of the default database. Advanced deployment options are not covered. For a deeper description of features or configuration options, consult the other reference guides.Starting Price: $690 per month -
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HYPR
HYPR | The Passwordless Company
HYPR fixes the way the world logs in. Organizations are faced with the challenge of achieving secured and seamless authentication coupled with a flawless user experience at a time when it’s more critical than ever. HYPR’s passwordless multi-factor authentication (PMFA) platform decouples authentication from the organization’s current and future identity providers and eliminates the traditional trade-off between security and user experience by providing uncompromising assurance and consumer-grade experience with true passwordless and phishing-resistant MFA. The solution is trusted by more than 60M users worldwide. With deployments taking hours rather than weeks or months, organizations decrease the risk of attack, increase positive user experience, and lower operational costs.Starting Price: $4.00 per user/month -
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Edgenexus Load Balancer (ADC/WAF/GSLB)
Edgenexus
Choose us because we offer the easiest to use technology without sacrificing features or performance. We back this up with outstanding support and care, delivered under a fair and cost effective pricing model Our technology is used by the smallest startups with big ideas and small budgets all the way to global enterprises and anything in between. We love them all the same! Easy to use Load balancing, WAF, GSLB and SSO/Pre-Authentication. It is also the Only true ADP Application Delivery Platform where the functionality and lifespan can be enhanced using the app store or applications that you develop in house.Starting Price: $50 -
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Ping Identity
Ping Identity
Ping Identity builds identity security for the global enterprise with an intelligent identity platform that offers comprehensive capabilities including single sign-on (SSO), multi-factor authentication (MFA), directory, and more. Ping helps enterprises balance security and user experience for workforce, customer, and partner identity types with a variety of cloud deployment options including identity-as-a-service (IDaaS), containerized software, and more. Ping has solutions for both IT and developer teams. Enable digital collaboration with simple integrations to these popular tools. Support your employees wherever they are with integrations to these popular tools. Deploy quickly with interoperability across the entire identity ecosystem. Whether you just want single sign-on (SSO) or a risk-based, adaptive authentication authority, starting off with a PingOne solution package lets you only pay for what you need, and gives you room to grow.Starting Price: $5 per user per month -
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Secret Double Octopus
Secret Double Octopus
Secret Double Octopus (SDO) provides a “best-in-class” enterprise passwordless MFA solution. In addition to market-leading completeness of features, SDO’s solution is differentiated by its patented automated password rotation approach and flexibility around enabling a “passwordless journey”. Organizations that are apprehensive about the move to passwordless, can progressively achieve Full Passwordless™ by beginning with traditional MFA on desktops or for remote worker use cases and eventually “flipping the switch” when they are ready. The company recently won AITE Novarica’s highest distinction in an evaluation of all major solutions, and has been designated a Gartner Cool Vendor.Starting Price: $3/month/user -
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WSO2 Identity Server
WSO2
WSO2 Identity Server is API-driven, is based on open standards with the deployment options of on-premise, cloud or hybrid. It supports complex IAM requirements given its high extensibility. WSO2 Identity Server helps you do single sign-on and identity federation backed by strong and adaptive authentication, securely expose APIs, and manage identities by connecting to heterogeneous user stores. Leverage the power of open-source IAM in your enterprise to innovate fast and build secure Customer IAM (CIAM) solutions to provide an experience your users will love -
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Regula
Regula
Regula is a global software and hardware manufacturer focused on the verification of identity documents, banknotes, and securities. Regula’s software product suite includes ID verification, facematching and liveness technologies for mobile applications and web-based solutions, to build a seamless on-premises digital identity and biometric verification workflow. We give our clients and partners the opportunity to perform identity verification with the ultimate level of security, efficiency & customer experience. Regula clients portfolio consists of 500 organisations from Banking, Fintech, Telecom, Aviation, Insurance industries, more than 50 largest KYC providers and 132 border authorities. We produce high-quality products in order to automate all processes related to identity verification and document examination. -
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uqudo
uqudo
uqudo is MEA's leading digital identity platform, delivering end-to-end verification that safeguards every customer touchpoint. Our award-winning suite seamlessly integrates white-label KYC, KYB, AML Screening, Transaction Monitoring, and Biometric Authentication to embed trust into digital interactions. We empower enterprises and scaleups to accelerate digital transformation, slash operational costs, deliver frictionless user experiences, ensure regulatory compliance, and eliminate fraud. With proven expertise spanning Banking, Telecommunications, Fintech, Trading, and national identity programs, uqudo processes millions of verifications annually across the region. -
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Allthenticator
Allthenticate
Allthenticator is a passwordless authentication platform designed to unify digital and physical access through a single smartphone-based identity. It enables proximity-based login to computers, websites, and servers, while also unlocking physical doors with the same device—eliminating passwords, tokens, and keycards. The platform supports SSH key signing, passkey logins, OTP management, and native integrations with identity providers like Azure AD and Okta. Admins manage everything from a centralized dashboard with role-based access and audit logs. Allthenticator also offers a decentralized credential recovery system, allowing users to back up identities with trusted peers instead of the cloud. Organizations using Allthenticator have reported 94% fewer password resets, 76% less time spent on access management, and up to 96% employee satisfactionStarting Price: $12/month/user -
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IceWarp
IceWarp
The only office rule is, there is no office. Business email, TeamChat for project teamwork, real-time office document collaboration and online meetings. All in our secure cloud and for half the usual cost. Chat in teams organized around projects, upload files, mention coworkers, comment on posted emails, pin important posts. Integration with email enables sharing received messages directly to TeamChat room for colleagues‘ attention. Skyrocket your office work effectivity with Desktop Client and Desktop Office documents on Windows as well as Linux devices. Get the complete Suite, or choose only the app you need.Starting Price: $312.00/year/user -
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Teleport
Teleport
The Teleport Infrastructure Identity Platform modernizes identity, access, and policy for infrastructure, for both human and non-human identities, improving engineering velocity and resiliency of critical infrastructure against human factors and/or compromise. Teleport is purpose-built for infrastructure use cases and implements trusted computing at scale, with unified cryptographic identities for humans, machines and workloads, endpoints, infrastructure assets, and AI agents. Our identity-everywhere approach vertically integrates access management, zero trust networking, identity governance, and identity security into a single platform, eliminating overhead and operational silos. -
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REVE Secure
REVE Secure
Dual authentication check of login’s credibility via user’s registered credential (Password) and security token generated at authorized user end only. Passwords are incompetent in securing your logins. Adding 2nd-factor authentication will not only deliver dual authentication security but also ensure safe & secure login & protected account access. With Two Factor Authentication, secure your remote logins and access to Linux/UNIX servers from security breaches and malicious attacks. Integrate a second layer of authentication to existing Windows password-based security to ensure the all-round protection of your enterprise data. Secure & protect logins and access to each different web application and service to avoid unauthorized access and cyber-attacks. Blocks unauthorized login attempts made using passwords. Supports a multitude of platforms and devices. -
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EnSecure
Enqura
Strong multi-factor customer authentication designed for secure first time log-in, transaction signing, document verification protecting digital channels against fraud. Digital Identity, created by using multi-factor authentication is crucial for enhancing user experience, guaranteeing the protection of your customers’ assets, and adhering to regulatory requirements. EnSecure offers the ideal solution for end users’ authentication needs across many industries, with two versions based on Soft OTP and Electronic Certificate.
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