1
Stratum
stratumauth.comUse Stratum, an open-source Android app for generating two-factor authentication codes, with encrypted backups, account categories, and a Wear OS companion app.
Alternatives
The Best Google Authenticator Alternatives in 2026
11 alternatives5 free · 4 open source
Looking for something like Google Authenticator? Here are 11 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 5 are free or have a free plan and 4 are open source.
About Google Authenticatorsupport.google.com/accounts/answer/1066447
VisitGoogle's two-factor authentication app that generates time-based codes for online accounts. Free.
Top picks at a glance
First suggestionStratumUse Stratum, an open-source Android app for generating…Free or freemium optionMicrosoft AuthenticatorFree Microsoft mobile authenticator for sign-in approvals…Open source optionMauthMauth provides two-factor authentication for Android that…Another optionTofuTofu, an iOS authenticator, that adds accounts by scanning…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | Stratum | — | Not stated | Android, Web |
| 2 | Tofu | — | Not stated | iOS, Web |
| 3 | Microsoft Authenticator | Free | Not stated | Android, iOS |
| 4 | Mauth | — | Yes | — |
| 5 | Zoho OneAuth | Free | Not stated | Android, iOS, mac |
| 6 | app | — | Yes | Android |
| 7 | Google Password Manager | Free | Not stated | Web, Android, iOS |
| 8 | 2fauth | — | Yes | — |
| 9 | Ente Auth | Free | Yes | Android, iOS, Web |
| 10 | 2FAS | — | Not stated | Android, Browser extension, iOS |
All Google Authenticator alternatives
2
Tofu
tofuauth.comTofu, an iOS authenticator, that adds accounts by scanning issuer QR codes and generates time-based or counter-based one-time passwords offline.
3
Same kind of online tool
Free Microsoft mobile authenticator for sign-in approvals, time-based codes, and documented account backup and recovery.
4
Open source
Mauth provides two-factor authentication for Android that supports TOTP and HOTP codes and compatibility with Google Authenticator.
5
Same kind of online tool
Free multi-factor authentication app for Zoho and third-party accounts with backup and multi-device sync.
6
Open source
Stratum Auth is an Android and Wear OS two-factor authentication client supporting TOTP and HOTP codes, encrypted backups, and account categories.
7
Same kind of online tool
Save passwords and passkeys through Google Password Manager in Chrome and Android, with access through your Google account.
8
Open source
Use 2FAuth, a web app, to manage two-factor authentication accounts and generate security codes.
9
Open source
Ente Auth provides cross-platform two-factor authentication with end-to-end encrypted cloud backups for account tokens.
10
2FAS
2fas.comStore passwords and two-factor authentication tokens locally with 2FAS, which offers mobile apps and a browser extension.
11
The 2FA Directory lists websites and services that support two-factor authentication, including options such as SMS, email, calls, and security keys.
No alternatives match this filter.
Alternatives to similar tools
Twofactorauth24 alternativesStratum24 alternativesZoho OneAuth10 alternativesMicrosoft Authenticator10 alternativesTofu24 alternativesMauth24 alternatives
TopicPassword Managers · 40 sites Best-of list8 Best Free Password Managers in 2026 ListingGoogle Authenticator details
What is the best alternative to Google Authenticator?
Based on features, tags and platforms, the closest alternatives to Google Authenticator are Stratum, Tofu, and Microsoft Authenticator.
Is there a free alternative to Google Authenticator?
Yes. Microsoft Authenticator, Zoho OneAuth, and Google Password Manager are free or offer a free plan.
Are there open-source alternatives to Google Authenticator?
Yes: Mauth, app, 2fauth, and Ente Auth.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative