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Ory Kratos Alternatives
Similar projects and alternatives to Ory Kratos
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InfluxDB
InfluxDB – Built for High-Performance Time Series Workloads. InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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Ory Hydra
The only web-scale, fully customizable OpenID Certified™ OpenID Connect and OAuth2 Provider in the world. Become an OpenID Connect and OAuth2 Provider over night. Written in Go, cloud native, headless, API-first. Available as a service on Ory Network and for self-hosters. Relied upon by OpenAI and others for web-scale security.
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Ory Keto
The most scalable and customizable permission server on the market. Fix your slow or broken permission system with Google's proven "Zanzibar" approach. Supports ACL, RBAC, and more. Written in Go, cloud native, headless, API-first. Available as a service on Ory Network and for self-hosters.
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casbin
An authorization library that supports access control models like ACL, RBAC, ABAC in Golang: https://discord.gg/S5UjpzGZjN
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products
The most flexible and standards-compliant OpenID Connect and OAuth 2.x framework for ASP.NET Core
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casdoor
Discontinued An open-source UI-first Identity and Access Management (IAM) / Single-Sign-On (SSO) platform with web UI supporting OAuth 2.0, OIDC, SAML, CAS, LDAP, SCIM, WebAuthn, TOTP, MFA and RADIUS [Moved to: https://github.com/casdoor/casdoor]
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
NOTE:
The number of mentions on this list indicates mentions on common posts plus user suggested alternatives.
Hence, a higher number means a better Ory Kratos alternative or higher similarity.
Ory Kratos discussion
Ory Kratos reviews and mentions
Posts with mentions or reviews of Ory Kratos.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2025-03-20.
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OpenAI uses open source Ory to authenticate over 400M weekly active users
That is definitely possible when you use our identity product, which is also open source: https://github.com/ory/kratos
There you can combine all authentication methods in any shape or form you wish!
- OpenAUTH: Universal, standards-based auth provider
- Show HN: Identifier First Auth and OTP MFA for Open Source Auth0 Alternative Ory
- Show HN: OSS Auth0 Alternative Ory Kratos Now with Full PassKey Support
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Integrate Ory in a NestJS application
In the onSignIn method, if the user's email address is not verified, an error is thrown to prevent login, see documentation. This logic is similar to the original require_verified_address hook in Ory Kratos. Unless the identity schema does not require email verification, the user can log in without a verified email address. We will use this logic to skip the email verification step for our end-to-end tests. The OryWebhookError class is a custom error class that extends the HttpException class from NestJS. It formats the error response in the format expected by Ory Kratos webhooks allowing the error message to be displayed in the Self-Service UI.
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Create NestJS libraries to interact with Ory API
kratos-client-wrapper is a set of NestJS modules that wraps @ory/client and, more particularly, the Frontend and Identity APIs, which are part of Ory Kratos
- Show HN: Auth0 OSS alternative Ory Kratos now with passwordless and SMS support
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Show HN: Obligator – An OpenID Connect server for self-hosters
I was expecting hydra / kratos to show up as an alternative.. but did not see any. Does any have any experience, good or bad about it?
https://github.com/ory/kratos
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Show HN: Blueprint for a distributed multi-region IAM with Go and CockroachDB
I think it would be fair to say that kratos was not the priority in 2022 in terms of code you can see not much was commited (https://github.com/ory/kratos/graphs/code-frequency) so I might have had a bad first impression.
A few issues on kratos that I consider relatively important are still missing / nobody from Ory is giving their input so it's hard to make progress and I would not take my time to contribute if I dont know if the owner are going to merge it.
An example that comes to mind is the OAuth email auto-verification or the search of users that is still super basic (we only recently got the filter of identifiers).
- Ory Kratos v1.0 with passkeys, MFA and multi-region
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A note from our sponsor - InfluxDB
www.influxdata.com | 12 May 2025
Stats
Basic Ory Kratos repo stats
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11,873
9.7
3 days ago
ory/kratos is an open source project licensed under Apache License 2.0 which is an OSI approved license.
The primary programming language of Ory Kratos is Go.
Sponsored
InfluxDB – Built for High-Performance Time Series Workloads
InfluxDB 3 OSS is now GA. Transform, enrich, and act on time series data directly in the database. Automate critical tasks and eliminate the need to move data externally. Download now.
www.influxdata.com