Awesome GitHub RepositoriesCurrency Conversion

Actual is a local-first personal finance manager designed to help users track income, manage expenses, and maintain a balanced budget. It functions as a data-centric application that prioritizes offline access and local file storage, ensuring that financial records remain available and performant regardless of network connectivity. The platform distinguishes itself through a robust architectural foundation that emphasizes data integrity and auditability. Every financial action is recorded as an immutable sequence of events, and all currency values are processed using an integer-based arithmet

FinceptTerminal is a quantitative finance platform and financial engineering library designed for asset valuation, risk management, and fixed-income analytics. It provides a comprehensive suite for algorithmic trading and investment strategy automation, integrating specialized language model agents and node-based workflows to automate market research and alpha generation. The project distinguishes itself with a dedicated game theory analysis engine for calculating Nash equilibria and simulating strategic interactions in competitive markets. It also features a specialized credit risk modeling

web3.js is a comprehensive TypeScript library designed to facilitate interaction with Ethereum-compatible blockchain networks. It serves as a foundational toolkit for decentralized applications, providing the necessary interfaces to query network state, manage cryptographic identities, and execute smart contract transactions. By abstracting the complexities of blockchain communication, the library enables developers to integrate decentralized logic directly into their applications. The library distinguishes itself through a modular architecture that prioritizes extensibility and flexible conn

This project is a Python library designed for the programmatic retrieval and analysis of diverse financial datasets. It functions as a comprehensive toolkit for quantitative research, providing a unified interface to fetch historical and real-time market data across asset classes including equities, futures, bonds, cryptocurrencies, and foreign exchange. By abstracting complex network requests into simple, parameter-driven functions, it enables users to integrate financial data into research workflows and automated trading systems. The library distinguishes itself through its scraper-based ag

TigerBeetle is a distributed financial accounting database designed for high-volume transaction processing. It functions as a specialized transaction engine that enforces strict double-entry bookkeeping invariants, ensuring that every debit and credit is balanced and accounted for with absolute consistency. By utilizing a consensus-based replication model, the system provides high availability and data durability across geographically distributed clusters, making it suitable for mission-critical financial infrastructure. The system distinguishes itself through a performance-oriented architect

Dinero.js is a TypeScript-first library for creating, calculating, and formatting monetary values. It provides immutable money objects that represent amounts in the smallest currency subdivision as integers, ensuring precision and preventing floating-point errors. The library enforces same-currency rules on arithmetic operations and validates currency codes against ISO 4217 definitions at creation time. The library distinguishes itself through a calculator plugin architecture that delegates arithmetic operations to interchangeable backends, supporting number, bigint, or custom precision libra

AllAboutBugBounty is a curated collection of bug bounty techniques and payloads for web application security testing. It serves as a reference resource covering common web vulnerabilities and exploitation methods for security researchers, providing a structured approach to identifying and exploiting web application security flaws in bug bounty programs. The repository covers a wide range of attack categories including authentication bypass, cross-site scripting injection, server-side request forgery, web cache poisoning, and business logic abuse. It includes techniques for bypassing access co

Beancount is a plain-text double-entry accounting system. It enforces zero-sum transactions, organizes accounts into a hierarchical five-type tree, and verifies balances at specific dates using precision-derived tolerances. Transactions are recorded in plain-text files with a strict syntax that supports currency-specific rounding, automatic interpolation of missing amounts, and comprehensive metadata including tags, links, and payee annotations. Beyond core bookkeeping, Beancount offers investment portfolio tracking with lot-based cost basis management, configurable booking strategies (FIFO,

This is a PHP library for handling financial calculations using value objects. It represents monetary amounts as integers to avoid floating-point precision errors and ensure mathematical accuracy during processing and storage. The library utilizes an immutable value object pattern where calculations return new instances to prevent side effects. It employs currency-aware arithmetic to restrict mathematical operations to objects sharing the same currency and uses interface-based logic to delegate currency conversion to external exchange providers. Capabilities include international currency fo

hledger is a plain text accounting tool and double-entry ledger manager that stores financial transactions in human-readable text files. It functions as a financial reporting engine for generating balance sheets and income statements, and as a multi-currency investment tracker for managing commodity lots and capital gains. The project distinguishes itself by providing multi-interface data access, allowing users to interact with their financial data via a command line interface, a terminal user interface, and a web server. It features a market-price valuation system to calculate the current va

Dieses Projekt ist eine Multi-Chain-Kryptowährungs-Wallet für die selbstverwaltete Asset-Verwaltung. Sie fungiert als Plattform zum Speichern, Verwalten und Übertragen digitaler Assets über verschiedene Blockchain-Netzwerke hinweg, wobei sichergestellt wird, dass Benutzer durch lokale Speicherung die exklusive Kontrolle über ihre Private Keys behalten. Die Wallet implementiert hierarchisch deterministische Schlüsselableitung zur Generierung sicherer Adressen und Mnemonic-Seed-Wiederherstellung zur Wiederherstellung von Guthaben. Sie bietet Multisig-Sicherheit, die ein Quorum von Signaturen mehrerer Teilnehmer erfordert, um Transaktionen zu autorisieren und Gelder zu schützen. Das System deckt ein breites Spektrum an Funktionen ab, einschließlich Kryptowährungs-Swaps und Fiat-zu-Krypto-Onboarding über Drittanbieter-Integrationen. Es bietet Tools für Portfolio-Tracking, Peer-to-Peer-Zahlungen und Netzwerkoptimierung durch Transaktionsbeschleunigung und Gebührenanpassungen. Zusätzliche Verwaltungs-Utilities umfassen das Sweepen von Paper-Wallets und Multi-Faktor-Kontoschutz.

IronCalc is an XLSX spreadsheet engine and formula evaluator designed to compute numerical expressions and manage workbook structures. It utilizes a logic engine compatible with industry standards to evaluate formulas and manage cell dependencies. The project provides a comprehensive suite of specialized toolkits, including a financial calculation library for bond pricing and net present value, and an engineering math toolkit for complex number arithmetic and Bessel functions. It also features a web-based spreadsheet interface for creating and formatting workbooks. The engine covers a broad