Frontegg vs FusionAuth
Side-by-side comparison of features, pricing, ratings, and alternatives.
Frontegg is a customer identity and access management (CIAM) platform that secures the entry points into SaaS applications, describing itself as "the identity layer for every SaaS entry point." It provides a low-code approach to identity management so engineering teams can offload authentication, SSO, and multi-tenant user management instead of building it in-house. Beyond traditional CIAM, Frontegg also offers Agen.co, an enterprise-grade agentic layer that lets users interact with SaaS products safely through generative AI interfaces. The platform uses usage-based pricing tied to monthly active users, enterprise SSO/SCIM connections, and machine-to-machine token exchanges.
FusionAuth provides a complete customer identity and access management solution that developers can integrate quickly via APIs, SDKs, and webhooks. It handles authentication, authorization, and user lifecycle management while offering both cloud SaaS and self‑hosted deployments. The platform includes built‑in support for social logins, multi‑factor authentication, passwordless flows, and fine‑grained role‑based access control, making it suitable for everything from startups to large enterprises.
- Free tier covers up to 7,500 monthly active users
- Purpose-built for B2B multi-tenant SaaS
- Usage-based pricing calculator for transparency
- Forward-looking agentic access product
- Easy integration with extensive SDKs
- Rich feature set in free tier
- Self‑hosted option for full data control
- Clear documentation and active community
- Enterprise pricing is fully custom and not published
- Usage-based costs can grow unpredictably at scale
- Best fit is specifically B2B SaaS, not general consumer apps
- Advanced enterprise features require paid plan
- UI can feel dated compared to newer competitors
- Limited out‑of‑the‑box UI customization
More alternatives & similar tools
Alternatives to Frontegg
View all →
Alternatives to FusionAuth
View all →
The Verdict
AI-generated from listing dataFusionAuth offers a developer‑friendly, self‑hostable IAM with a rich free tier, while Frontegg focuses on B2B SaaS multi‑tenant needs with a customizable hosted login and usage‑based pricing.
Key differences
- •FusionAuth can be self‑hosted (Docker) for full data control; Frontegg is cloud‑only.
- •Frontegg provides built‑in multi‑tenant organization support and unlimited orgs; FusionAuth does not emphasize multi‑tenant SaaS.
- •FusionAuth includes out‑of‑the‑box MFA methods and passwordless login; Frontegg’s MFA details are not specified.
- •Frontegg offers a fully customizable hosted login page and custom domain branding; FusionAuth’s UI customization is limited.
- •Pricing model: FusionAuth freemium with paid plans for enterprise features; Frontegg uses usage‑based pricing tied to MAUs and custom enterprise pricing.
Pricing & value
FusionAuth’s freemium tier includes many features; Frontegg’s free tier limited to 7,500 MAUs and enterprise pricing undisclosed.
Ease of use / learning curve
FusionAuth provides extensive SDKs and clear docs; Frontegg’s low‑code customization may require more setup for multi‑tenant SaaS.
Features & depth
FusionAuth offers MFA, passwordless, SAML, OIDC, social logins, webhooks; Frontegg’s feature list omits MFA specifics.
Integrations & ecosystem
FusionAuth lists over 30 social providers and key IdPs; Frontegg mentions generic SSO/SCIM but no concrete providers.
Scalability
Frontegg is built for unlimited organizations and B2B SaaS scale; FusionAuth can scale but lacks explicit multi‑tenant architecture.
Support
Both offer community resources; FusionAuth adds paid support plans, Frontegg adds premium support on Enterprise.
Security & privacy
FusionAuth provides built‑in MFA, passwordless, and self‑hosting for data control; Frontegg’s security details not specified.
Choose Frontegg if…
B2B SaaS teams requiring multi‑tenant org support, branded hosted login, and usage‑based pricing.
Choose FusionAuth if…
Developers needing on‑prem control, rich auth features, and open‑source flexibility.
Common questions
Can I self‑host the solution?
Yes for FusionAuth (Docker image); Frontegg is cloud‑only.
What is included in the free tier?
FusionAuth’s freemium offers core IAM features; Frontegg’s free tier covers up to 7,500 monthly active users.
Which platform better supports multi‑tenant SaaS applications?
Frontegg, with unlimited organizations and built‑in multi‑tenant architecture; FusionAuth does not emphasize this.