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The better auth and identify infrastructure

Logto is an open-source Auth0 alternative for modern apps and SaaS products, supporting OIDC, OAuth 2.0 and SAML open standards for authentication and authorization.

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Trusted by over 10,000 customers worldwide

Build your project with the identity and access management solution that developers love.

For all app builders

Whether you are building a consumer app, SaaS, or enterprise product, Logto has you covered.

Email and SMS passwordless

Using one-time codes sent via email and SMS to ensure a secure and friendly authentication experience.

Social sign-in

Using social sign-in to let users log in using their existing social media accounts such as Facebook, Apple, Google, Discord, etc.

Password authentication

Using password sign-in to serve as the most popular method of authentication for your products and unblock users.

Omni (Multi-app) sign-in experience

Secure user authentication across apps and platforms. Customize your sign-in experience for a beautiful, seamless login.

Multi-factor authentication

Integrate Multi-Factor Authentication (MFA) into your product, allowing users to sign in with an authenticator app (such as Duo), Passkeys, or backup codes.

Enterprise SSO (SAML and OIDC)

Enable your clients' employees to sign in easily with single sign-on. Logto securely connects to identify providers like Okta and Microsoft Entra using SAML or OIDC protocols.

Organizations (multi-tenancy)

In multi-tenant and B2B apps, leveraging organizations is a preferred way to group users and resources. Use Logto organizations features to drive SaaS best practices.

IDP for 3rd-party app

Use Logto as an identify provider to connect with ecosystems and enable a beautiful consent experience.

Machine-to-machine authentication

Use machine-to-machine (M2M) authentication to protect communication between apps, microservices, monoliths, and IoT devices.

Machine-to-machine authentication

Role-based access control

Design your authorization policy and manage user access with Logto role-based access control. Available for both global and organization resources.

Impersonation

Allows authorized users to temporarily act on behalf of another user’s identity. This is especially helpful for troubleshooting, customer support, and administrative tasks.

Impersonation

Personal access token (PAT)

Securely allow users to grant access without needing credentials or interactive sign-ins. They’re ideal for CI/CD, scripts, or applications that require programmatic access to resources.

Personal access token (PAT)

Simplify development with 20+ modern frameworks and Logto Management API

Grow and scale, with trust and security

Integrate Logto

Set up Logto in minutes and start building your app

Idea and proof of concept

Use Logto to quickly build and test your ideas

A single app

Secure your app with Logto and focus on your core business

Multi-app structure

Easily manage multiple apps at scale with Logto

Sell to enterprises

Get enterprise-ready with Logto features and support

Secure your identities at all lifecycle stages of your product

  • Any company stage
  • Any business model
  • Any product infrastructure

Whether you're evolving as a multi-product business, just starting businesses selling to individuals, or planning to expand to large enterprise clients, Logto can help quickly implement those must-have features around your product's identities.

Trust and security

SOC 2 logo

Standards & Privacy Compliant

Logto has undergone the AICPA SOC 2 Type I certification to validate Security, Availability, and Confidentiality controls. With a Type II audit on the horizon, we aim to further demonstrate our commitment to security and compliance.

  • Open-source
  • Self-hosting assurance
  • Role-Level Security
  • Argon2 algorithm
  • High availability
Protection
  • Community-driven
  • Data protection
  • TLS encryption
  • Data isolation
  • Database encryption

Logto Cloud is hosted in the EU 🇪🇺 , Australia 🇦🇺 and US 🇺🇸 regions and provides robust security with stringent protocol adherence, DevSecOps practices, advanced encryption, and measures for data isolation and protection.

Learn more about trust and security

Why Logto?

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Members
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Countries

The most scalable and flexible auth identify infrastructure

  • Multi-protocol support (Oauth, OIDC and SAML) product and covers both authentication and authorization.
  • From open-source to cloud-hosted, from one-app to multi-app, from single-tenant and multi-tenant architecture.

Affordable Auth0 alternative with free MAU up to 50k

  • Logto's token-based and add-on pricing provides predictable costs, no MAU surprises.
  • Logto offers significantly more competitive pricing than its alternatives like Auth0, Clerk, Stytch, etc.

Elegant auth design and user flow for B2B2C SaaS

  • Quickly add workspace management, invitations, and collaboration to your SaaS product.
  • Logto works across industries and integrates easily with manufacturing, healthcare, and ERP systems.

Open source by nature and community-driven

  • Logto boasts a strong open-source version that is highly regarded within the developer community.
  • Enjoy complete freedom with no vendor lock-in, backed by robust security.

Easily manage your identities with Logto