Security & privacy✦Editorial profile
SeedSigner
Build an offline Bitcoin signing device.
Project or serviceView listing
Security & privacy
Build an offline Bitcoin signing device with QR workflows.
Specter DIY publishes hardware and software for a Bitcoin signing device that communicates with a host wallet using QR codes. It is intended for users assembling and operating their own signer. Check the supported board, firmware verification and recovery steps before signing transactions.
Editorial review · 8 Oct 2026
Imported records link to their sources. An entry is a discovery aid, not an endorsement.