/ ecc-calculator

ECC Calculator

Perform point addition and scalar multiplication on the secp256k1 curve.

A general expression calculator for elliptic curve point operations and modular arithmetic on the secp256k1 curve order.

What it does

  • Parses expressions like `1234 + 5678`, `03...79 + 5`, or `03...79 - 02...45`.
  • Two numbers → modular arithmetic mod the curve order n (+, −, ×, ÷ with modular inverse).
  • Two public keys → elliptic curve point addition/subtraction.
  • A public key and a scalar → scalar multiplication, division, or P ± kG.
  • Runs entirely server-side — the computation logic never ships to the browser.

Use cases

  • Explore how EC point addition and scalar multiplication actually behave.
  • Work through modular arithmetic problems related to ECDSA.
  • Chain results from PubkeyAdd, PublicKey, or PublicKey - HEX into further calculations.

This tool is available to premium members.

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