keychain-manager
A key system based around accounts that each have hierarchical deterministic (HD) keychains with ECDSA public/private keypairs (the ones Bitcoin uses).
@scure/bip32
Secure, audited & minimal implementation of BIP32 hierarchical deterministic (HD) wallets over secp256k1
gojs
Interactive diagrams, charts, and graphs, such as trees, flowcharts, orgcharts, UML, BPMN, or business diagrams
hdkey
Bitcoin BIP32 hierarchical deterministic keys