Top Free Multi-Factor Authentication (MFA) Software - Page 6

How Many Multi-Factor Authentication (MFA) Software Products Does G2 Track?

Total Products under this Category: 280

Category Stats (Oct 2026)

  • Average Rating: 4.46/5 The average rating of products in this category, based on all submitted ratings
  • Top Trending Product: SSOJet (+1.88%) - Among all products in this category, SSOJet recorded the largest rating increase compared to last month

Last updated: October 13, 2026

How Does G2 Rank Multi-Factor Authentication (MFA) Software Products?

Why You Can Trust G2's Software Rankings:

  • 30 Analysts and Data Experts
  • 13,800+ Authentic Reviews
  • 280+ 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 Multi-Factor Authentication (MFA) Software

G2 Grid® for Multi-Factor Authentication (MFA) Software plotting products by satisfaction and market presence

Highlighted products: Google Authenticator, Cisco Duo, Microsoft Entra ID, 1Password, LastPass, Keeper Password Manager, NordPass Business, and Auth0.

Underlying data: [Grid® JSON](https://www.g2.com/categories/multi-factor-authentication-mfa/grids.json?focus%5B%5D=google-authenticator&focus%5B%5D=cisco-duo&focus%5B%5D=microsoft-entra-id&focus%5B%5D=1password&focus%5B%5D=lastpass&focus%5B%5D=keeper-password-manager&focus%5B%5D=nordpass-business&focus%5B%5D=auth0)

Thales FIDO2 Devices & Security Keys

FIDO-compliant authenticators from Thales Group provide a practical, standards-based approach to passwordless authentication. By replacing passwords with FIDO2 security keys, organizations reduce exposure to phishing and account takeover while simplifying user access and complying with the highest security standards. Built on asymmetric cryptography, Thales FIDO2 hardware security keys are phishing-resistant and protect against man-in-the-middle attacks by binding credentials to trusted domains and storing private keys securely on the device.  Available in multiple form factors, including USB tokens and smart cards, these hardware keys support authentication across devices such as laptops and mobile phones as well as shared workstations. Users authenticate themselves. Security keys provide the necessary authentication factors, including something you have (physical token), something you know (PIN) or something you are (fingerprint), and something you do (touching token edge). They support FIDO2.0, FIDO2.1, WebAuthN, U2F. In addition, Thales hybrid FIDO2 authenticators support PKI, enabling digital signature, file encryption and phishing resistant authentication based on certificates to access legacy digital resources and FIDO to access modern digital resources.  Thales hybrid FIDO smart cards support physical access, enabling the deployment of converged badges for digital and physical access in your organization. By eliminating passwords and reducing help desk dependency, Thales helps organizations lower IT overhead while deploying strong, future-ready authentication.

Who Is the Company Behind Thales FIDO2 Devices & Security Keys?

  • Seller: Thales Group
  • HQ Location: Austin, Texas
  • Twitter: @ThalesCloudSec
    6,935 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    46 employees on LinkedIn®
  • Ownership: EPA:HO
  • Total Revenue (USD mm): $15,854

Twizo Verification

We are a security authentication platform offering various methods of two factor authentication for enterprises and developers. We offer both FREE and paid solutions. Our products are super simple to integrate and we have a wide range of solutions for you to work with. Visit www.twizo.com/products/verification for a full breakdown of the features available via all of the below services. * Twizo Authenticator * Messaging Clients * Bio Voice * SMS * Voice Call * Backup Codes * Widget We aim to make security more accessible and more readily available so that service providers, users and everyones critical data is better protected. Twizo makes online security simple through easy integration and a variety of authentication solutions. We serve customers globally allowing them to scale their businesses while we worry about their security.

Who Is the Company Behind Twizo Verification?

  • Seller: Twizo
  • Year Founded: 1999
  • HQ Location: Singapore, SG
  • Twitter: @GetTwizo
    5 Twitter followers
  • LinkedIn® Page: www.linkedin.com
    35 employees on LinkedIn®

TWOSENSE.AI

Twosense is changing the way that BPOs handle identity security. Deploying Passive or Continuous Multi-Factor Authentication powered by passive biometrics allows for organizations to deploy phishing-resistant, PCI-compliant MFA to every agent, everywhere. Twosense is a no-phone, software-only, multi-factor authentication tool designed specifically for call centers. Save time and money without the need for hard tokens, and secure more security-conscious customers with a best-in-class identity security policy.

Who Is the Company Behind TWOSENSE.AI?

Brandon Summers-Miller
BS
Researched and written by Brandon Summers-Miller
Updated April 10, 2026