loginos
One-tap sign-in and passkeys for every domain you run
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loginos is a hosted sign-in for products on more than one domain. People sign up once and are signed in on every domain you run, even your customers' own. • One tap: Chrome and Edge show "Continue as Jane" on your page, no redirect • Passkeys with Face ID or fingerprint • Roles and permissions in every token • Existing users link their accounts, no migration Standard OpenID Connect, works with any auth library. Free to start, no card needed.
PH · launched Oct 16, 2026 · 1 upvote (top 67%) · 1 view
Niche: multi-account browser tools · 30 launches, 4 in the last 7 days · Explore this niche →
Category and tags
- Horizontal
- Dev tools
- B2B
- Not AI
- Commercial product
- SaaS
- Developer Tools
- Security
Visit website ↗ Source listing ↗
More like this: all 30 launches in multi-account browser tools →
Could you build this?
Partial While basic auth UIs and WebAuthn wrappers can be vibe-coded, handling frictionless cross-domain single sign-on across third-party custom domains faces strict modern browser cookie isolation and FedCM requirements.
What it would actually take: Requires an architecture leveraging FedCM (Federated Credential Management), modern WebAuthn protocols, and public suffix list handling to coordinate cross-origin identity tokens securely without third-party cookies. The backend needs hardened cryptographic key management and multi-tenant session validation. The hard part is navigating rapidly evolving browser privacy sandboxes and security standards across Safari, Chrome, and Edge.
Competitors
Other products that read as similar to this one : 56 launches clear the similarity bar, closest 8 shown.
Attention rank: #35 of 57 (itself plus its competitors, highest first, normalized so YC and Product Hunt are compared fairly).
Launched 330 days after the earliest competitor.
- Passhold · ph · 2026-11-12 · 1 upvotes · similarity 0.46
- BrowserLogin · ph · 2026-10-02 · 1 upvotes · similarity 0.44
- Browser Cookie Bridge · ph · 2026-09-07 · 2 upvotes · similarity 0.44
- LoginFlip · ph · 2026-09-15 · 1 upvotes · similarity 0.44
- LumoAuth · ph · 2026-11-10 · 1 upvotes · similarity 0.39
- dsh-auth-cookie-guard · github · 2026-10-30 · 24 upvotes · similarity 0.39
- Privacy & Terms Guardian · ph · 2026-09-14 · 1 upvotes · similarity 0.39
- SHOPLOCK Login Required · ph · 2026-10-11 · 1 upvotes · similarity 0.38
The niche, labels, vibe code rating and competitor comparison on this page are analysis by Nicheloom. If you use them, please credit nicheloom.com. How you may use our data.