☁️Infinity ID · Stable

The open-source Amazon Cognito alternative

Infinity ID is an open-source, self-hostable identity provider written in Rust. It implements standard authentication protocols so teams that prefer to own their identity infrastructure — on any cloud or on-premises — have a self-hosted option.

See Infinity ID in the stack →★ View source
// ABOUT AMAZON COGNITO

Amazon Cognito is AWS's managed identity service providing user pools, federated identities and MFA, deeply integrated with the AWS ecosystem.

When to consider Infinity ID

▸You want identity that is not tied to a single cloud provider
▸You want to self-host and keep user data on your own infrastructure
▸You prefer an open-source (Apache-2.0) codebase you can audit and modify
▸You want standards-based auth: OpenID Connect and OAuth 2.0 with PKCE
▸You want to avoid monthly-active-user pricing

Infinity ID vs Amazon Cognito — at a glance

Amazon Cognito
Infinity ID
Licensing
Proprietary / commercial
Open-source (Apache-2.0)
Hosting model
Amazon Cognito is delivered primarily as a vendor-managed service
Self-hosted on your own local, cloud, or hybrid infrastructure
Cloud coupling
Native to the AWS ecosystem
Cloud-agnostic — any local, cloud or hybrid infrastructure
Standards
OIDC, OAuth 2.0, SAML federation
OpenID Connect + OAuth 2.0 with PKCE
MFA
SMS and TOTP factors
TOTP multi-factor authentication
Password security
Managed secure hashing
Argon2id hashing with rotating signing keys (RS256 + JWKS)
Maturity
Amazon Cognito is an established, widely-adopted platform
Newer project — stable
// AN HONEST NOTE

Cognito is deeply integrated with AWS services (IAM, API Gateway, Amplify) and scales as a managed service. Infinity ID is cloud-agnostic and self-hosted — evaluate how tightly your stack is coupled to AWS before choosing.

Amazon Cognito alternative — FAQ

Can Infinity ID replace Cognito if my stack runs on AWS?
It can run on AWS compute like any self-hosted service, but you lose Cognito's native integrations with IAM, API Gateway and Amplify. Standards-based flows (OIDC/OAuth 2.0) migrate cleanly; AWS-specific wiring needs rework.
Is Infinity ID free?
Yes — open source under Apache-2.0 with no monthly-active-user charges. You pay only for the infrastructure you run it on.
Where is user data stored with Infinity ID?
On infrastructure you control — any cloud or on-premises — which helps with data-residency and multi-cloud strategies.
// OTHER ALTERNATIVES
Infinity ID vs Auth0 →Infinity Observe vs Datadog →Infinity Data vs Pinecone →Infinity Stream vs Kafka →Infinity ID vs Okta →Infinity ID vs Clerk →Infinity Observe vs New Relic →Infinity Observe vs Splunk →Infinity Data vs Elasticsearch →Infinity Stream vs Confluent →Infinity Stream vs Amazon Kinesis →