Coinb.in
Browser tools to build, inspect and sign Bitcoin transactions.
Developer tools & open source
JavaScript key-pair utilities for Bitcoin signing applications.
ECPair supplies elliptic-curve key-pair utilities for JavaScript Bitcoin software. It is used alongside transaction and cryptographic libraries. Review the selected curve backend, entropy source and key serialization requirements, and keep signing operations separate from untrusted transaction or network input.
Editorial review · 8 Oct 2026
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Website responded to the check. Checked 8 Oct 2026.