No. 11 of 45 ·Biometric Authentication Software

fido2-lib

Self-hosted · API

Freedom report

Two barsScore 6.3

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely0 of 6 device platforms
DocumentedPlans, terms and facts published

fido2-lib is ranked #11 of 45 in biometric authentication software on Freedom251. It runs on API, Self-hosted. There is a free plan.

fido2-lib plans and pricing

All plans

fido2-lib Free MIT-licensed library · no pricing plans stated github.com · 5 Oct 2026

Compared on biometric authentication software

Deployment model: self-hosted
Supported platforms: Node.js, Deno, web browsers using WebAuthn
SDK languages: JavaScript

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The record

Purpose: fido2-lib is a Node.js library for implementing FIDO 2.0 and WebAuthn server functionality.
Protocol independence: The library does not implement a networking protocol such as REST endpoints, so it can remain independent of messaging protocols.
Registration and authentication: Its four primary functions create attestation and assertion challenges and parse and validate the client responses.
Attestation formats: Listed attestation formats are packed, TPM, deprecated Android SafetyNet, FIDO U2F, none, and Apple.
Extensibility: The library provides APIs for adding attestation formats and extensions.
Metadata: Metadata service support provides authenticator root-of-trust and metadata, including support for multiple services such as FIDO MDS 1–3.
Cryptography: The listed crypto families are ECDSA and RSA, with x509 certificate parsing and PKITS chain validation.
Audit data: The library returns parsed and validated data together with extra audit data for risk engines.
Runtime and modules: The README provides Node.js and Deno installation and import examples, and says CommonJS and ESM are supported natively.
Windows Hello: The project lists Windows Hello as supported.
Integration examples: The README points to OWASP Single Sign-On and webauthn.io for working examples.
Challenge handling: The library does not track sessions or context, so the caller is expected to associate each challenge with a session to match it with a response.
License: The software is provided under the MIT License, which grants free use, copying, modification, distribution, sublicensing, and sale subject to its conditions.
Security reporting: The security policy asks reporters not to post vulnerabilities in public GitHub issues and says to use private vulnerability reporting or contact the lead maintainer; it says a response should arrive within 48 hours.
Price from: Free

Where it ranks on Freedom251

Best Biometric Authentication Software in 2026#11 of 45

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Sources

github.com/webauthn-open-source/fido2-lib· checked 5 Oct 2026
github.com/webauthn-open-source/fido2-lib/blob/mas· checked 5 Oct 2026
github.com/webauthn-open-source/fido2-lib/blob/mas· checked 5 Oct 2026
github.com/webauthn-open-source/fido2-lib/releases· checked 5 Oct 2026