Multi-factor authentication from Cisco for protecting enterprise applications.
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4 Best Alternatives to Duo Security
Duo Security is great, but it's not the only option. Here are the 4 best Duo Security alternatives, ranked by community votes — with honest pros and cons for each.
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Top 4 alternatives
Okta Featured
Enterprise identity and single sign-on platform trusted by thousands of organizations.
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Single sign-on and identity platform, now part of One Identity, positioned as a lower-cost Okta alternative.
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Microsoft's free MFA app for personal and enterprise authentication.
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Google's free TOTP-based two-factor authentication app.
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Free alternatives to Duo Security
If budget is the main concern, these options have a free or open-source tier:
Frequently Asked Questions
- What is the best alternative to Duo Security?
- Okta is the top-ranked alternative to Duo Security based on community upvotes, but the right pick depends on your specific needs — see the full ranked list above with pros and cons for each.
- Is there a free alternative to Duo Security?
- Yes — Microsoft Authenticator, Google Authenticator offer a free or open-source tier and can work as a free alternative to Duo Security, depending on which features you need.
- How many alternatives to Duo Security are there?
- We currently track 4 alternatives to Duo Security on Kreemhunt, ranked by community upvotes. New alternatives are added as we review more tools in this category.