Wide-Integer implements a generic C++ template for uint128_t, uint256_t, uint512_t, uint1024_t, etc.

Extended precision integer C++ library

uint128 for Go

Uint128 and Int128 for Go

A 128-bit signed/unsigned integer implementation with optimized multiplication, division, and string conversions. This package supports the new StaticBigInt on macOS 13.3+ or iOS 16.4+.

Large number arithmetic in Swift

128-bit integers

C++ implementation of wide exact-width integer types

Package bits128 implements various 128-bit types, for the Go programming language. Including int128 and uint128 — as bits128.Int128 and bits128.Uint128.

Simple 128/256/512 bit data structure for unsigned and signed integers.

Big Unsigned Integer Implements

SoftWx.Numerics ported to .NET Standard

An unsigned 256 bit integer type for C++

Int128 for Unity

Clojure-helpers to make blockchain development less painful