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The better identity infrastructure for developers

Every app needs authentication and authorization. Logto is an open-source Auth0 alternative designed for modern apps and SaaS products.

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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 sign-in experience.

Social sign-in

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

Password

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

Omni sign-in experience

Secure user authentication across apps and platforms with unified experience and Single Sign-On. Customize your sign-in experience for a beautiful, seamless sign-in.

Multi-factor authentication

Stay ahead in the cybersecurity game and attract security-conscious clients by integrating multi-factor authentication into your product.

Enterprise SSO (SAML & OIDC)

Easily meet your enterprise identity system needs with our SSO solution. It offers secure connections to various identity providers via 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.

Identity provider for third-party apps

Turn your service into an innovation hub with Logto. Build an ecosystem around your product and let third-party apps use your identity system.

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 others. This is especially helpful for troubleshooting, customer support, and administrative tasks.

Impersonation

Personal access token

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

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

SOC 2 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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The most scalable and flexible product

  • OIDC-based product and covers authentication and authorization.
  • Logto is designed to scale with your business, from a single app to multi-app structure.

Reasonable cost and high ROI

  • Logto’s pay-as-you-go and add-on pricing means predictable costs, no surprising bills for MAUs.
  • Logto’s enterprise plan can be customized to meet your business needs.

Help businesses grow and innovate

  • We prioritize developers and startups underserved by large corporations.
  • Logto offers plenty of tutorials, videos, and SDKs for smooth integration with the latest apps and frameworks.

Open-source 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.

People love Logto

  • Avatar

    Ufuk ARSLAN

    Co-Founder of Mobilist

    Logto has helped us to include authentication fast and easily. If you are looking for an authentication layer this is the solution.
  • Avatar

    André König

    CEO at openformation.io

    We have been using Logto as THE authentication system and it has truly been a game changer. The integration was seamless and it significantly improved user experience.
  • Avatar

    Michel Courtine

    Member of Technical Staff at Docker

    We have been using Logto as THE authentication system and it has truly been a game changer. The integration was seamless and it significantly improved user experience.
  • Avatar

    Alexander De Ridder

    Co-founder at INK

    Logto Cloud is an incredible solution for startups and scaleups who need authentication. It was easy to get up and running and since it supports OAuth, integration into our other systems was seamless. Highly recommended!
  • Avatar

    Olyno

    Developer

    The UI is great, the docs is good too, the design is modern enough, a great product with a great future. And the team is super helpful and present.
  • Avatar

    ZR3SYSTEMS

    Developer

    The team have helped me so much with my auth system. With the core being Logto, I only need to implement other verifications around it. Logto IS AMAZING and I see the commitment of the team!
  • Avatar

    Z3rNico

    Developer

    If you quickly need to add auth to your app be sure to check out @logto_io. It's easy to use and modern, has a great team behind it and it's even open source! #logto
  • Avatar

    Murat Gozel

    Developer

    For those who look for an auth system, I would recommend give Logto a try. I switched to its beta version after using a kind of traditional auth system for about ten years.
  • Avatar

    xiaohanyu

    Developer

    But before adding more features I decided to migrate the current user auth system, which is powered by @nextauthjs , to a new one that has better support for SSO integration with ease. Checked several solutions, @logto_io looks quite promising! Hopefully I can get this done soon.
  • Avatar

    Onur Köse

    Backend Developer

    I am migration the authentication system from Firebase to Logto. The docker environment helps a lot and it's really a out-of-the-box solution for my needs. I am going to experiment how can I integrate its RBAC module into my Symfony application but I don't expect any issues because everything was so smooth so far.
  • Avatar

    John Needle

    Senior Software Engineer

    I'm never building auth from scratch again
  • Avatar

    Hussaini Maina

    Developer

    if you're building a saas and your authn is not built with something like @logto_io, then you're definitely wasting precious developer time on authn. Your time should be spent on business logic not auth. Try out logto, it takes less than 1hr to setup & understand.

Easily manage your identities with Logto