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WebAuthn Options Validator

Review registration or authentication JSON, canonical Base64URL values and descriptor types without invoking credentials APIs.

webauthn-options-validatorLOCAL WORKSPACE

Enabling local controls…

Local memory only: no upload, storage, host connection or credential operation. The report describes limited structural checks and risk hints.

32 KiB / 20 JSON levels / 5000 nodes. Encoded JSON uses Base64URL strings instead of browser ArrayBuffers. Structural hints only: no credential operation, origin/public-suffix binding, server challenge freshness or entropy, attestation, authentication or platform compatibility verification.

Source reviewed 2026-10-19: ToolHub source · W3C WebAuthn Level 3

Edit input and inspect. Changes clear old results and cancel pending work.

How to use this tool

Edit the bounded input, inspect locally, then explicitly copy or download the complete report. Changes cancel and clear old results.

When not to use it

32 KiB / 20 JSON levels / 5000 nodes. Encoded JSON uses Base64URL strings instead of browser ArrayBuffers. Structural hints only: no credential operation, origin/public-suffix binding, server challenge freshness or entropy, attestation, authentication or platform compatibility verification.