Code

OAuth libraries are available in a variety of languages.

• [ActionScript] ActionScript
• [Bun] Bun
• [C] C
• [ColdFusion] ColdFusion
• [Deno] Deno
• [Dart] Dart
• [.NET] .NET
• [Elixir] Elixir
• [Elm] Elm
• [Erlang] Erlang
• [Go] Go
• [Java] Java
• [JavaScript] JavaScript
• [Kotlin] Kotlin
• [Lua] Lua
• [Node.js] Node.js
• [Objective C] Objective C
• [Perl] Perl
• [PHP] PHP
• [PowerShell] PowerShell
• [Python] Python
• [QT / C++] QT / C++
• [Ruby] Ruby
• [Rust] Rust
• [Scala] Scala
• [Swift] Swift

OAuth Providers

Open Source

• Authentik
• Authplane
• a12n-server
• Casdoor
• Glewlwyd
• Omejdn
• Keycloak
• OAuth.io
• ORY Hydra
• oidc-provider
• SimpleLogin
• Spring Authorization Server
• SSQ signon
• WSO2 Identity Server
• ZITADEL
• boruta
• Logto

Commercial

• Asgardeo
• Auth0
• Authgear
• Authress
• Authsignal
• cidaas
• Clerk
• Corbado
• Curity Identity Server
• Descope
• ForgeRock
• FusionAuth
• Kinde
• LoginRadius
• Okta
• PingId
• Red Hat Single Sign-On
• Scalekit
• Stytch
• ZITADEL Cloud
• IBM Cloud App ID
• Logto
• SSOJet

Related Projects and Services

• Vouch Proxy - an nginx reverse proxy solution that adds OAuth/OpenID authentication
• Osso - SAML to OAuth bridge
• OAuth Mock Server - A free and open-source OAuth mock server that simulates the biggest providers just by replacing the URL. Useful for E2E testing.

Legacy OAuth 1.0 Support

• See OAuth 1.0