Tools / Auth0 / Auth0 vs Kinde
Identity platform for authentication and authorization.
Auth0 is an identity platform that handles authentication and authorization for applications. It covers customer identity (CIAM) with features like Universal Login, passwordless authentication, embedded login, user management, and breached password detection. It also has an AI Identity product line aimed at B2B and commerce use cases for securing AI agents. Developers can integrate via SDKs and quickstarts for 30+ languages and frameworks, including React, Next.js, Angular, Vue.js, React Native, and iOS/Swift. The site includes documentation, APIs, an events catalog, code samples, and free developer tools such as a JWT decoder, SAML tool, OIDC playground, and passkeys playground. Auth0 also runs a marketplace for integrations and a community forum. Pricing details are on the site's pricing page.
Auth, billing, and feature flags in one platform.
Kinde is a platform for SaaS teams that combines authentication, user management, billing, and feature flags in a single product. On the auth side it covers sign-in, user management, connected apps, and access management, with B2B features like organizations for multi-tenancy. The billing module handles monetization, and release management tools include environments and feature flags. Branding options include a page designer and custom domains. Developers get SDKs for a wide range of stacks — backend (.NET, Elixir, Express, Java, Next.js, Node.js, Nuxt, PHP, Python, Remix, Ruby, SvelteKit, TypeScript, Apollo GraphQL, Express GraphQL), frontend (JavaScript, React, plus a community Angular SDK), and native (Android, Expo, Flutter, iOS, React Native) — and Kinde can also be used without an SDK. There's a public API, starter kits on GitHub, documentation, a Discord and Slack community, a public roadmap, and a system status page. A free tier is available via the 'Start for free' signup, and there's an Enterprise offering.