PRODUCT DETAILS

BitTool Signer

Turn a spare phone into an offline crypto signer

Launch date · UTC: 2026-10-30
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Category: Other

About this product

Turn a spare phone into an offline transaction signer. BitTool Signer keeps keys on the offline device and exchanges signing requests and signatures by QR. Supports Bitcoin, EVM, Solana and TRON, with public source and a separate online companion.

Keywords

Cryptocurrencyoffline signingprivate key management