cidaas
Germany
EU
cidaas is a cloud identity and access management platform from Widas ID GmbH in Wimsheim, Germany. It belongs to the Widas Group, which has offered software made in Germany since 1997. cidaas...
European Alternatives to Okta
Curity
Sweden
EU
Self-Hostable
Curity is a Swedish identity software company founded in 2015 in Stockholm by specialists in OAuth, OpenID Connect and large-scale identity management. Its main product is the Curity Identity Server, an access...
Nevis
Switzerland
Self-Hostable
Nevis is an identity and access management platform from Nevis Security AG, headquartered in Zurich. The technology grew up inside the Swiss software company AdNovum and has been developed by an independent...
Univention Nubus
Germany
EU
Open Source
Self-Hostable
Nubus is the open-source identity and access management solution of Univention GmbH in Bremen, Germany. Univention has built open-source software for identity management and application integration since 2002 and says its products...
ZITADEL
Switzerland
Open Source
Self-Hostable
Non-European Parent Company
ZITADEL is an identity platform for applications and developers. It was founded in 2019 in Switzerland, and its Swiss company CAOS AG has its office in St. Gallen. Today the company also...
Non-European but Open Source
The Open Source category highlights projects that, while originally developed in countries outside of Europe, allow anyone from around the world to contribute. These projects are not bound by geographic location—anyone, regardless of where they are based, can review, modify, and improve the code. The key factor is that the source code is available for anyone to examine, ensuring that the product can be independently verified and trusted, regardless of its origin. By featuring open-source projects, we promote transparency, collaboration, and innovation on a global scale.
Did we miss one? Feel free to submit a suggestion!
Submit SuggestionOkta is a US provider of cloud identity and access management: single sign-on, multi-factor authentication and user lifecycle management for employees, plus customer login through Auth0. Okta bought Auth0 for about 6.5 billion US dollars in stock, and the deal closed on 3 May 2021. Today Auth0 products and Okta's workforce products are sold side by side. People look for an Okta alternative for several reasons: cost per user, dependence on one vendor for all logins, the US jurisdiction over identity data, or the wish to run the software themselves.
European options for IAM and single sign-on
- Keycloak: the open-source standard for single sign-on with OpenID Connect and SAML. Free, but the operator runs, updates and secures it. It is not a European company product; it is listed because it can be hosted in Europe.
- ZITADEL: Swiss-founded, open source under AGPL, with a cloud service and self-hosting. The company has a US parent, which the listing notes.
- cidaas: a German commercial cloud platform for customer and workforce identity, closest to Auth0 in the customer-login case.
- Nevis: a Swiss platform with a focus on banks, insurers and strict regulation.
- Univention Nubus: German open-source directory and single sign-on, strong for organisations that replace Active Directory.
- Curity: a Swedish identity server centred on OAuth and OpenID Connect for APIs.
Where the trade-offs are
The open-source options save licence fees but need operating skills, and none of them copies Okta's integration catalogue one to one, so the applications in use should be checked for standard protocol support first. Commercial European services take over operation but differ in size and in how openly they publish prices. The full comparison is on IAM and single sign-on solutions.