Internet Identity — Sign in without passwords.
Developer: DFINITY Foundation · Category: Authentication · Last updated: August 2026
Internet Identity is the native authentication system for the Internet Computer. It replaces passwords with passkeys (WebAuthn), letting you sign in to any ICP application using biometrics or a hardware key. Each app gets a unique cryptographic identity, so services can never track you across sites. There's nothing to remember, nothing to phish, and no personal data stored — just tap to authenticate.
Launch Internet Identity
Source code: https://github.com/dfinity/internet-identity
Frequently asked questions
- Is Internet Identity really free?
- Yes. Operated as a public good on the Internet Computer — no per-user pricing, no MAU cost, no enterprise tier.
- What if I lose my only device?
- Your identity is unrecoverable without a registered passkey. Best practice: register multiple devices (phone + laptop + hardware key) at sign-up so any one of them can sign in.
- Can I use Internet Identity for non-ICP apps?
- Best fit is apps on the Internet Computer. For off-chain apps, your device's built-in passkey manager works with WebAuthn directly.
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