Auth0

Developer-first CIAM with SDKs and docs

ToolIdentity & Access ManagementCloud

Pricing: Free up to 25,000 MAUs; B2C paid from $35/mo; B2B paid from $150/mo

Reviewed by the CyberSecTool editorial team against the public sources cited below · Last reviewed February 2026 · How we review listings

What is Auth0?

Auth0 is a developer-focused customer identity platform (CIAM) now owned by Okta but sold as a separate product. It provides drop-in login, social sign-in, passwordless authentication, and multi-factor auth for applications, with SDKs for nearly every major framework. Auth0 is especially popular with SaaS startups because of its generous free tier and developer experience: you can go from zero to a working login flow in minutes.

Best for: SaaS teams that need customer login with a great developer experience
Pros
  • Excellent developer experience and documentation
  • Generous free tier covers most early-stage apps
  • Extensive SDKs for every major framework
  • Actions and Rules allow flexible custom logic
Considerations
  • Pricing gets expensive fast past the free tier
  • Okta acquisition raised long-term pricing concerns
  • B2B pricing tier jumps sharply for simple orgs support
  • Admin UI can feel dense for non-developer users

Reported in public reviews and vendor documentation. See sources below.

Key Features

Universal Login with customizable UI
Social connections (Google, Apple, GitHub, 30+ providers)
Passwordless authentication (email, SMS, magic links)
Multi-factor authentication
Role-based and fine-grained access control
Actions and Rules for custom auth logic
Organizations feature for B2B multi-tenancy
Machine-to-machine auth for APIs
Attack protection (brute force, breached password detection)
SDKs for React, Vue, Angular, Node, Python, Go, .NET

Are you Auth0? Improve this listing with screenshots, case studies and more.

Quick Info
PricingFree up to 25,000 MAUs; B2C paid from $35/mo; B2B paid from $150/mo
ModelPer monthly active user (MAU)
Founded2013
CloudYes
Self-HostedNo

Last updated: Feb 20, 2026

Certifications
SOC 2 Type 2ISO 27001HIPAAGDPR
In the glossary