Customer identity (CIAM)
Consumer sign-in is about conversion and trust: the shortest path to an account, and clear control over personal data afterwards. LumoAuth gives you a branded sign-up and login page, ten social providers, profile collection in small steps, and the privacy tools regulators expect.

A long sign-up form loses customers; a careless one loses trust
Every extra field at sign-up costs conversions. Every missing privacy control costs trust and, in Europe, fines. Teams end up building both badly under deadline pressure.
How LumoAuth solves it
Sign-up with verification
Email verification, double opt-in for marketing consent, CAPTCHA when needed, and a branded page. Docs
Social login
Google, Microsoft, Apple, GitHub, Facebook, LinkedIn, Discord, Slack and more. Accounts link only when the provider verified the email, so a social sign-in cannot hijack an existing account. Docs

Progressive profiling
Ask for one thing at a time, when it is relevant, with rules for when to ask. No wall of fields. Docs

Account self-service
Users manage their email, passkeys, devices, connected accounts and sessions on an account page you brand. Docs

Privacy requests built in
Export, correct, restrict and delete, from the user's own account page, with consent records and an audit trail. Docs

Analytics and CRM
Forward sign-up and sign-in events to Segment, Mixpanel, Amplitude or PostHog with pseudonymous IDs, and create contacts in HubSpot or Salesforce. Docs
Setting it up
Brand the pages
Logo, colours, layout, or paste your website URL and let the AI match it.
Enable sign-up and the methods you want
Passkeys, magic links, social providers, or email and password.
Add profiling rules
Ask for a company name on the third sign-in, a phone number before checkout.
Connect analytics
Events arrive in your product analytics tool within seconds, without raw email addresses.
Standards involved
Plain names on the left, the specification on the right. The full map is in the standards reference.
- Sign-in
- OpenID Connect, OAuth 2.1
- Passkeys
- WebAuthn, FIDO2
- Privacy
- GDPR Articles 15 to 22
Which plan you need
Sign-up, social login, passkeys, consent records and data-subject requests are on every plan. Progressive profiling, custom email templates, the AI theme generator, analytics and CRM sync start on Pro.
Documentation
Questions
Can I send emails from my own domain?
What about users under 16?
Ship passwordless sign-in this week. Put guardrails on your agents today.
The Developer plan is free for 10,000 monthly users and ten agents, with no card. Everything speaks open standards, so moving in or out is a config change.