Logto is an open-source identity and access management platform built by Silverhand, founded in 2022 by Gao Sun, positioned as an Auth0 alternative with support for OIDC, OAuth 2.0, and SAML standards.
The company has raised about 5 million dollars in Series A funding backed by Source Code Capital, and offers self-hosted, managed cloud, and enterprise private cloud deployment options.
Key Features
Logto provides pre-built sign-in and sign-up UI components, a management API, social logins, multi-factor authentication, role-based access control, and a native organizations feature for multi-tenant SaaS applications.
Enterprise-oriented capabilities include SAML and OIDC-based enterprise SSO, audit logging, and webhooks, alongside the option to self-host the fully open-source core for complete data control.
Pricing
Logto's Free plan supports up to 50,000 monthly active users at no cost, well above the free-tier limits offered by Auth0, SuperTokens, and Hanko.
The Pro plan is 24 dollars per month with unlimited MAU, RBAC, organizations, MFA, and enterprise SSO, while Enterprise offers custom pricing with Private Cloud deployment, SLAs, and HIPAA/BAA compliance support.
Key Features
Pre-built and customizable sign-in UI — Ready-to-use authentication screens that developers can fully customize or replace with their own UI.
Multi-protocol support — Implements OpenID Connect, OAuth 2.0, and SAML for interoperability with standard identity ecosystems.
Organizations (multi-tenancy) — Native support for multi-tenant SaaS applications with isolated roles and permissions per organization.
Role-based access control — Fine-grained authorization for controlling what authenticated users can access.
Enterprise SSO — SAML and OIDC-based single sign-on for connecting to a customer's existing identity provider.
Multi-factor authentication — Adds an extra verification step to sign-in flows for stronger account security.
Flexible deployment — Choose self-hosted open source, Logto Cloud managed hosting, or Logto Private Cloud for enterprise compliance.
Webhooks and audit logs — React to identity events in real time and track account activity for compliance and debugging.
Pros & Cons
Pros
Fully open-source core with a genuine free self-hosting path, not just open-core
Free tier supports up to 50,000 monthly active users, more generous than most competitors
Native multi-tenant organizations support built in for B2B SaaS products
Supports open standards (OIDC, OAuth 2.0, SAML), reducing vendor lock-in
Company is younger and smaller than established competitors like Auth0, with a shorter track record
Documentation and community resources are smaller than more mature identity platforms
Token-based overage pricing on the Pro plan adds a variable cost dimension to budget for
Enterprise compliance features like HIPAA/BAA require the custom-priced Enterprise tier
Self-hosting requires operational effort to maintain and secure the identity infrastructure
Pricing
Free $0/month N/A
Pro $24/month Monthly
Enterprise Custom (contact sales) Custom
Frequently Asked Questions
What is Logto used for
Logto is an open-source identity and access management platform that provides authentication, authorization, and user management for web, mobile, and machine-to-machine applications.
Is Logto free
Yes, Logto's Free plan supports up to 50,000 monthly active users at no cost, and the open-source core can also be self-hosted for free indefinitely.
Who founded Logto
Logto was founded in 2022 by Gao Sun under the company Silverhand, which has raised about 5 million dollars in Series A funding backed by Source Code Capital.
How does Logto compare to Auth0
Logto offers a much larger free tier (50,000 MAU versus Auth0's 7,500), a fully open-source self-hosting option, and native multi-tenant organizations support, positioning it as a more developer-friendly and cost-effective alternative.
Can I self-host Logto
Yes, Logto's core is fully open source and can be self-hosted on your own infrastructure, in addition to managed Logto Cloud and enterprise Logto Private Cloud options.
Does Logto support multi-tenant SaaS applications
Yes, Logto includes a native Organizations feature designed specifically for multi-tenant B2B SaaS applications with isolated roles and permissions.