Tools

Client-side utilities that run entirely in your browser.

• Kelly Criterion — Optimal bet-sizing calculator with three parameterizations.
• Timestamp Converter — Unix ↔ ISO 8601 ↔ RFC 2822 ↔ Locale with timezone selector.
• Bitcoin Address Derivation — Private key → all five mainnet address types with full derivation steps.
• Ethereum Address Derivation — Private key → EIP-55-checksummed address with full derivation steps.