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Modern auth infrastructure for developers

Logto adds multi-tenancy, enterprise SSO, and RBAC to your SaaS or AI apps. All with OIDC and OAuth 2.1 made simple, fast, and developer-friendly.

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Protocols that work

OAuth 2.1, OIDC, SAML. Auth, SSO, RBAC.

Any app, anywhere

From local to cloud. From web to mobile. From one app to many.

No billing surprises

50K MAUs free. Token-based. Pay-as-you-go.

Built for devs

Open-source. Fast integration. Developer-first support.

Thousands of teams rely on Logto for modern auth and SSO

From open-source projects to enterprise teams, Logto powers secure identity everywhere.

10.1k+ stars
Open-source on GitHub
1,000+ members
Active dev community
100+ countries
Used by teams worldwide
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Explore the code

Built with Logto by teams like

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For builders who hate rebuilding auth

Tired of duct-taping auth across your SaaS, AI agents, and B2B apps? Logto got you covered.

Sign-in experience

Email and SMS passwordless

Passwordless that feels obvious: one-time codes via email or SMS.

Social sign-in

Social sign-in, done. Google, Apple, Discord, and more.

Password authentication

Still the default. Still what users expect.

Multi-app omni sign-in experience

One sign-in flow. Every app. Looks native. Works everywhere. Zero friction.

Security and control

Multi-factor authentication

MFA in minutes. Passkeys, authenticator apps, backup codes.

Role-based access control

Set rules, control access. RBAC for global and organization-level resources.

Enterprise SSO

SSO with Okta, Entra, SAML, any IdP. Enterprise SSO without the enterprise headache.

Advanced flows

Multi-tenancy (organizations)

Multi-tenancy that scales. Group users, manage resources, permission everything.

IdP for 3rd-party

Your app. Your ecosystem. Be the IdP with a consent flow that doesn’t suck.

Machine-to-machine authentication

M2M made simple. APIs, microservices, devices, all locked down.

Machine-to-machine authentication

Impersonation

Troubleshoot like a hero. Safely impersonate users, fix issues fast.

Impersonation

Personal access token (PAT)

PATs for scripts, bots, and pipelines. No messy sign-ins, just clean access.

Personal access token (PAT)

Works out of the box with 20+ frameworks and clean Management API

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Plugged into the tools you already use
Check out all frameworks
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Grow and scale without security debt

Integrate Logto

Add Logto. Up and running in minutes.

Idea and proof of concept

Build fast. Test faster. Validate your idea with Logto.

A single app

Secure your app. Focus on shipping, not auth.

Multi-app structure

Handle multiple apps. Manage everything, scale cleanly.

Sell to enterprises

Ready for enterprise. SSO, compliance, and support baked in.

Secure identities at every stage of your product

  • Any stage
  • Any model
  • Any stack

Launching your first app? Expanding to multi-product? Selling to enterprise? Logto handles auth and SSO. No matter where you are.

Built for trust. Audited for security.

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Standards & Privacy Compliant

Logto is SOC 2 Type II certified: proof we take security, uptime, and data privacy seriously.

  • Open-source
  • Self-hosting ready
  • Role-Level Security
  • Argon2 password hashing
  • High availability
Protection
  • Community-driven
  • Data protection
  • TLS everywhere
  • Data isolation
  • Database encryption

Logto Cloud runs in EU 🇪🇺, Australia 🇦🇺, US 🇺🇸, and Japan 🇯🇵 regions. With DevSecOps, advanced encryption, and rock-solid data isolation.

See how we keep you safe

Build with Logto Cloud. Focus on your app.

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