Authentication

285+ open-source auth tools — OAuth, SSO, passkeys, MFA, and session management. Alternatives to Auth0, Clerk, and Firebase Auth.

Firebase Auth

Google Firebase's take on authentication

Authentication
googlemanagedsocial-login
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MojoAuth

Complete CIAM solution with Enterprise SSO and extensive out-of-the-box enterprise features

Authentication
passwordlessmagic-linksotp
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Userfront

Simplistic user authentication with pre-built back-office dashboard

Authentication
jwtmulti-tenancyuser-management
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CertMagic

Mature, robust, and powerful ACME client integration for fully-managed TLS certificate issuance and renewal

Authentication
goacmeletsencrypt
Visit → 5480★
acmetool

ACME (Let's Encrypt) client tool with automatic renewal

Authentication
goacmeletsencrypt
Visit → 2091★
booster

Fast initramfs generator with full-disk encryption support

Authentication
gosecurityfirewall
Visit → 623★
certificates

An opinionated tool for generating tls certificates

Authentication
gotlscertificates
Visit → 38★
PropelAuth

Team-based authentication. [](https://launchweek.dev/lw/2024/mega#participants)

Authentication
b2bmulti-tenancysso
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Scalekit

Add enterprise SSO (SAML, OIDC), SCIM provisioning to your existing auth setup like Firebase, Auth0, or Cognito without rewrites. [](https://launchweek.dev/lw/2025#06)

Authentication
enterprisesamlsso
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SSOJet

Enterprise SSO without rebuilding auth. The free plan includes unlimited monthly active users, unlimited organizations, 2 SSO & 2 SCIM connections

Authentication
samlssomanaged
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Prisma Cloud

- :yen: (Previously Twistlock Security Suite) detects vulnerabilities, hardens container images, and enforces security policies across the lifecycle of applications

Authentication
cloud-securitycontainercommercial
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dusk-network/poseidon252

A Rust-native Poseidon hash over BLS12-381, Poseidon252 is built for zk-SNARK efficiency, ideal for privacy-focused protocols and zero-knowledge applications. [[Poseidon](https://crates.io/crates/dusk

Developer Tools
rustposeidonhash
Visit → 217★
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