Alternatives

Products that do what FusionAuth does

Auth for any app. Get every feature. Deploy everywhere.

1
MonoCloud for Startups▲167
One identity layer for your customers, APIs, and agents
Jul 2026 · monocloud.com
2
Auth0 Marketplace▲107
Discover and enable identity integrations in minutes
2020
3
Full-stack Auth for React/Node by Wasp▲241
Free OSS auth without 3rd party services, deploy anywhere
2023
4
PropelAuth▲112
Flexible auth for B2B products
2023
5
MojoAuth▲263
Simple & Easy passwordless authentication for website & apps
2021
6
Passkeyd▲160
Passkey auth, minimalistic and self hosted
2024
7
SimpleID▲150
Add decentralized auth and storage to your app in 10 minutes
2019
8
AuthGuardian by OneGraph▲185
The easiest 3rd-party sign-in for your apps and APIs
2020
9
Oso Cloud▲143
Authorization for the next billion developers
2023
10
Directus Cloud▲222
A modern data stack in 90 seconds, no-code app & data API
2022
11
Stytch B2B Authentication▲122
Build enterprise-ready auth into your B2B app
2023
12
Meta API▲164
Build next level automations
2022
13
Pizzly▲323
Building API integrations has never been easier
2020
14
Single Sign-On / SAML (by WorkOS)▲134
Integrate enterprise-level SSO for free in <1 hour
2020
15OS
Open-Source Auth for NextJS / React▲107
2021 · ory.dev
16
Autho▲152
cross-platform login box for web and native apps.
2014
17
Mighty▲195
OAuth for agents
2025
18
SuperTokens Passwordless▲173
Fully flexible, open source auth in 15 minutes
2022
19
Clerk▲280
Authentication and user management for React and Next.js
2021
20
Authgear ONCE▲82
Own your auth without subscription
2025
21
Kinde▲211
Infrastructure for authentication, feature flags & billing
2022
22BA
Base – API for authentication, email sending, images and more▲140
2019 · base-api.io
23
Clerk▲238
More than authentication, complete user management
2022
24
Authorizer▲21
Open-source auth for enterprise applications, and AI agents
4d ago · authorizer.dev

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