Amazon Cognito alternatives.

Cognito's DX is costing you engineering time.

Auth0 wins when you want to stop fighting the auth layer and ship faster.

Auth0 leads Cognito by a wide margin on the shared matrix: developer experience, connector catalog, B2B Organizations, and modern auth orchestration. For teams whose Cognito pain is velocity, it is the straightforward upgrade. The trade is tiered-MAU pricing that is far above Cognito's, so the engineering time saved has to justify the bill.

Best for

Teams whose Cognito cost is measured in engineering hours, not the invoice.

Watch out for

Much higher per-MAU cost than Cognito; the DX gain has to pay for it.

Read the Auth0 profileSee Auth0 vs Amazon Cognito

You want better DX without giving up low cost.

Supabase Auth wins when you want a modern bundled DX while keeping the bill low.

Supabase Auth pairs a modern developer experience with a Postgres foundation, row-level security, and an open-source core, at a cost profile closer to Cognito than to Auth0. It lifts the DX ceiling without trading away the low bill that kept you on Cognito. It is B2C-leaning, so heavy enterprise B2B needs sit outside its sweet spot.

Best for

Cost-sensitive teams that want modern DX and Postgres-native data ownership.

Watch out for

B2C-first; deep enterprise B2B requirements outgrow it.

Read the Supabase Auth profileSee Amazon Cognito vs Supabase Auth

You want hyperscaler-native auth with a smoother B2C DX.

Firebase wins when you want a hyperscaler-native option with friendlier B2C developer ergonomics.

Firebase Authentication is the GCP-native counterpart to Cognito, with smoother B2C developer ergonomics for consumer apps. On the matrix Cognito actually leads Firebase on several enterprise axes, so this is a sideways move chosen for DX and the GCP ecosystem. The trade is GCP coupling and the same B2B ceiling Firebase carries.

Best for

Consumer-app teams who prefer the GCP ecosystem and Firebase's B2C ergonomics.

Watch out for

Firebase has its own B2B ceiling; on the matrix Cognito leads it on several axes.

Read the Firebase Authentication profileSee Amazon Cognito vs Firebase Authentication

You want AWS deployment without Cognito's DX limits.

FusionAuth wins when you want to self-host on your own AWS without Cognito's constraints.

FusionAuth deploys on your own AWS infrastructure with a free Community edition and no per-MAU charge, while offering more customization and breadth than Cognito's hosted model. You keep the cloud you are on and gain control over flows and extension. The trade is that you now own the deployment and its operations. See the open source CIAM page for the full self-hosted comparison.

Best for

AWS teams with ops capacity that want control and MAU-independent cost.

Watch out for

Self-hosting moves the cost to operations and on-call; budget the headcount.

Read the FusionAuth profile

Your organization is drifting toward Microsoft, not AWS.

Entra External ID wins when your organization is standardizing on Microsoft.

Microsoft Entra External ID brings external identity into the Microsoft cloud with Entra administration and conditional access. On the shared matrix it leads Cognito on several enterprise axes. The trade is Microsoft-platform gravity, the mirror image of the AWS lock-in you are leaving.

Best for

Organizations consolidating on Microsoft that want identity inside Entra.

Watch out for

Swaps AWS lock-in for Microsoft lock-in; weigh the platform direction first.

Read the Microsoft Entra External ID profileSee Microsoft Entra External ID vs Amazon Cognito