ory/kratos
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Headless cloud-native authentication and identity management written in Go. Scales to a billion+ users. Replace Homegrown, Auth0, Okta, Firebase with better UX and DX. Passkeys, Social Sign In, OIDC, Magic Link, Multi-Factor Auth, SMS, SAML, TOTP, and more. Runs everywhere, runs best on Ory Network.
37 mentions on Hacker News by 33 people: 8 stories, 29 comments · first 2020-08-29 · latest 2025-11-13
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Kratos - Cloud native Auth0 open-source alternative (self-hosted)story by curtistyr · 2025-11-13 · 97 comments
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Show HN: Ory Kratos, an open source Auth0 / Clerk alternativestory by vwpolo3 · 2025-11-12 · 0 comments
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Show HN: Open Source Auth0 alternative Ory Identifier First Auth and OTP MFAstory by zzzzzzzzzz10 · 2024-09-26 · 0 comments
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Show HN: OSS Auth0 Alternative Ory Kratos Now with Full PassKey Supportstory by V0rtexV0xter · 2024-06-06 · 18 comments
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Auth0 OSS alternative Ory Kratos now with passwordless and SMS supportstory by oporquinho94 · 2024-02-22 · 112 comments
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Ory Kratos v1.0 with passkeys, MFA and multi-regionstory by gvusfraber · 2023-07-13 · 43 comments
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Show HN: Open-source Auth0 alternative Ory Kratos v0.13 released – nearing v1.0story by quartzbox · 2023-04-19 · 50 comments
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Show HN: Ory Kratos – Open-source identity server written in Gostory by nottennis · 2022-06-09 · 65 comments