Backend-free digital membership cards with two apps: an Issuer to generate cryptographically signed PNG cards with QR codes, and a Verifier to validate them in-browser by scanning the QR (no server or database required).
jwt school spa crypto pwa verification qr-code nonprofit static-site membership ed25519 eddsa pta digital-cards membership-card digital-membership-cards association-management digital-membership qr-verify membership-card-generation
-
Updated
Feb 14, 2026 - JavaScript