Generate a shielded (Orchard) ZKas wallet entirely on this device. Keys never leave the page.
⚠️ Use this OFFLINE. For real cold storage: save this file, disconnect from the
internet (or use an air-gapped machine), then open it. Anyone who sees the
recovery seed can spend the funds — it is the whole secret. This page makes
no network requests; the address is computed locally in WebAssembly.
Print or hand-copy the seed and store it offline. Do not photograph it with a
cloud-synced phone.
Or derive the address for an existing seed (to verify a backup):
Shielded address (safe to share — receive to this)
Recovery seed — SECRET (back this up offline)
Address
Seed (secret)
Restore later by importing the seed into a ZKas wallet
(shielded-pay, walletd, or the web/mobile wallet). The address is
deterministically derived from the seed, so it can always be recomputed.
Offline · self-contained · no dependencies. Verify integrity by opening this file with
your browser's network tab: it should issue zero requests. Source:
firecash-signer compiled to WebAssembly.