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SeedSigner

hardwareactive

Open-source DIY Bitcoin signing-device project for building air-gapped, stateless hardware signers from off-the-shelf components.

Developer / company
SeedSigner project contributors
Origin
—
Launch
—
Custody
self_custody
Confidence
high
Last verified
2026-08-20

Product family

Products

hardware_deviceactive
SeedSigner DIY Signing Device2026-08-20

DIY air-gapped stateless Bitcoin signing device built from publicly available components and SeedSigner open-source software.

Chronology

Lifecycle timeline

2026-02-04
other

SeedSigner 0.8.5 added initial multilingual support

Product: SeedSigner DIY Signing Device

SeedSigner released version 0.8.5 on 2026-02-04 with its initial localization and multilingual support, Spanish UI support, refreshed UX elements, and basic P2TR address verification, providing a distinct lifecycle milestone before the currently canonical 0.8.7 release.

Evidence: 1
2026-07-08
other

SeedSigner 0.8.7 released

Product: SeedSigner DIY Signing Device

SeedSigner released version 0.8.7 with new features, translations, fixes, and contributions from a broad set of developers, providing direct evidence of ongoing software maintenance.

Evidence: 1

Sources

Evidence