Passwordless.dev
bitwarden.com
What it is
Passwordless.dev is an API framework for developers building passkey authentication for websites and applications. It uses open-source code and browser standards to create FIDO2 WebAuthn flows, including Face ID, fingerprint, and Windows Hello. Supported environments include web browsers, Android 9+, iOS, and a REST API, with SDKs for JavaScript, C#, Java, PHP, and Python. The service is designed to work with common authentication solutions, allowing teams to add passkeys without recoding or replacing existing systems. A dedicated console manages passkeys, applications, and users. Workforce authentication can provide password-free access to enterprise systems and applications. The Free plan supports up to 10,000 users, one app per organization, and one console administrator, with support and documentation access. Pro costs $0.05 per user per month for the first 10,000 users; additional users cost $0.01 per user. Enterprise costs $3.00 per user per month billed annually and adds workforce authentication, event logs, beta self-hosting, and advanced support. Pro includes prioritized support and a dedicated SLA.
Spec sheet
- Purpose
- Passwordless.dev provides an API framework to help teams build passkey authentication for customers, users, and workforce members.Read 30 Sep 2026 · bitwarden.com
- Intended users
- Bitwarden describes Passwordless.dev as intended for developers building FIDO2 WebAuthn passkey authentication for websites and applications.Read 30 Sep 2026 · bitwarden.com
- Integrations
- The product page says Passwordless.dev works with common authentication solutions but does not name specific Passwordless.dev integrations.Read 30 Sep 2026 · bitwarden.com
- Support
- Free includes support, Pro includes prioritized support and a dedicated SLA, and Enterprise includes advanced support.Read 30 Sep 2026 · bitwarden.com
- Headquarters
- Santa Barbara, California, USARead 28 Sep 2026 · bitwarden.com
- Founded
- 2016Read 28 Sep 2026 · bitwarden.com
- Admin console
- A dedicated console manages passkeys, applications, and users in one place.Read 30 Sep 2026 · bitwarden.com
- Enterprise deployment
- The Enterprise plan lists self hosting as a beta feature.Read 30 Sep 2026 · bitwarden.com
- Existing authentication platforms
- Passwordless.dev works with common authentication solutions so teams can adopt passkeys without recoding or replacing them.Read 30 Sep 2026 · bitwarden.com
- Free tier limit
- The Free plan supports up to 10,000 users and includes one app per organization and one console administrator.Read 30 Sep 2026 · bitwarden.com
- Passkey standards
- It uses open source and modern browser standards to create FIDO2 WebAuthn applications, including Face ID, fingerprint, and Windows Hello flows.Read 30 Sep 2026 · bitwarden.com
- Pro tier limit
- Pro costs $0.05 per user per month for the first 10,000 users, with users above that billed at $0.01 per user.Read 30 Sep 2026 · bitwarden.com
- Security review
- Bitwarden says third parties assess Passwordless.dev's open source code, documentation, and processes.Read 30 Sep 2026 · bitwarden.com
- Workforce authentication
- The product lets internal team members access enterprise systems and applications without relying on passwords.Read 30 Sep 2026 · bitwarden.com
Plans and prices
Free Free Annual subscription; taxes not included up to 10,000 users · 1 app per organization · 1 console administrator · support · documentation access Read 30 Sep 2026 · bitwarden.com
Pro $0.60 a year $0.60 per user per year (= $0.05 per user/month, billed annually) unlimited apps · unlimited console administrators · dedicated SLA · prioritized support Read 5 Oct 2026 · bitwarden.com
Enterprise $36 a year $36.00 per user per year (= $3.00 per user/month, billed annually) workforce authentication · all Pro features · app event logs · organizational event logs · self hosting (beta) · advanced support Read 5 Oct 2026 · bitwarden.com
Strong points and limits
Strong points
- Supports Face ID, fingerprint, and Windows Hello
- Works with existing authentication solutions
- Free tier supports up to 10,000 users
- SDKs cover five listed languages
- Dedicated console manages apps and users
Limits
- Free plan permits one app
- Free plan permits one console administrator
- Enterprise self-hosting is beta
- Paid usage is billed per user
Who it suits
It suits developers implementing FIDO2 WebAuthn passkeys for customer, user, or workforce sign-in. Teams wanting hosted or hybrid deployment can choose among free, Pro, and Enterprise capabilities.
Verdict
Passwordless.dev provides standards-based passkey building blocks across web, mobile, and API environments. Its free allowance is substantial, while advanced support, logs, workforce authentication, and self-hosting belong to paid tiers.
Where Specifiction places it
- Biometric Authentication Software#13 of 458.2
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