A collection of awesome open source fintech projects

Table of contents

• Calculators
• Charts
• Credit card forms
• Currency handling
• Education
• Icons
• Integrations
• Personal finance
• Sanctions
• Stock data
• Subscriptions and billing
• Other

Calculators

• Accrue.js - a loan and interest calculation plugin for jQuery
• finance - a library for financial calculations in Ruby
• node-sales-tax - international sales tax calculator for Node
• py1040 - a U.S. personal income tax calculator

Charts

• amCharts - a simple and flexible drop-in data visualization solution
• finance-go - a financial markets data library implemented in Go
• FinTA a technical analysis of financial indicators implemented in Pandas
• Lightweight Charts - display financial data as an interactive chart on your web page without affecting loading speed and performance
• perspective - an interactive analytics and data visualization component especially well-suited for large and/or streaming datasets
• react-financial-charts - charts dedicated to finance with multiple types, interactive indicators, overlays, and drawing objects

Credit card forms

• Card - a better credit card form in one line of code
• Payment - a jQuery-free general purpose library for building credit card forms, validating inputs, and formatting numbers

Compliance

• fincen - A Go library for reading and writing Fincen BSA forms. It is capable of generating, validating, and batching submissions.
• OpenSanctions - an open database of international sanctions data, persons of interest, and politically exposed persons
• Watchman - offers search functions over numerous trade sanction lists from the United States

Currency handling

• accounting - money and currency formatting for Golang
• accounting.js - a tiny JavaScript library for number, money, and currency parsing/formatting
• currency.js - a lightweight library for handling currency values and built to work around floating point issues in JavaScript
• Dinero.js - an immutable library and API to create, calculate, and format monetary values
• Open Exchange Rates - a real-time JSON API that provides exchange rates (forex/fx rates) for 150+ currencies, relative to USD

Education

• CryptoList - curated collection of blockchain and cryptocurrency resources
• deep-finance - datasets, papers, and books on AI and finance
• Fintech dictionary - simple definitions of fintech terms and acronyms

Icons

• PaymentFont - a sleek webfont featuring popular payment methods
• payment-webfont - an SVG webfont full of payment system and ecommerce icons
• Remix Icon - set of neutral-style system symbols, including but not limited to payment method icons, for designers and developers

Integrations

• paypal-checkout-components - JavaScript integration for PayPal Button and PayPal Checkout
• react-native-payments - for integrating payments like Apple Pay and Google Pay into your React Native app

ISO853

• iso-8583-socket-queue - Node.js powered ISO8583 gateway implementation for banking/fintech POS systems communication
• JReactive-8583 - ISO8583 client and server built on top of excellent Netty asynchronous messaging framework with the help of j8583 for encoding/decoding
• moov-io/iso8583 - ISO 8583 message reader and writer in Go
• moov-io/iso8583-connection - Connection package matching iso8583 requests and replies

Personal finance

• Budget - a web application that helps you keep track of your finances by organizing and visualizing transactions
• Firefly III - a self-hosted manager for personal finances to track expenses and income
• Ghostfolio - a web-based wealth management application to keep track of your financial assets like stocks, ETFs or cryptocurrencies and make solid, data-driven investment decisions
• Mintable - automate personal finances without ads and data collection
• OnTrack - a simple, self-hosted budgeting app to understand and control spending without giving banking/financial info to a third party

Stock data

• GoFinance - Financial information retrieval and munging written in Go
• google-finance - Python module to get stock data from Google Finance
• JCStockGraph - display historical price graphs for any stock in your iOS app
• TuShare - a utility for crawling historical data of China stocks
• yahoo-finance - Python module to get stock data from Yahoo Finance

Subscriptions and billing

• BoxBilling - billing, client, and order management software designed to be easy-to-use for both clients and sellers
• Crater - web and mobile app that helps freelancers and small businesses track expenses/payments and create professional invoices and estimates
• Invoice Ninja - invoice clients, facilitate payments, track time/tasks, handle expenses, and more (built with Laravel and Flutter)
• Kill Bill - an SaaS-like subscription management and billing solution with real-time analytics and financial reports
• Manta - flexible invoicing desktop app with diverse and customizable templates
• Recurly.js - create subscriptions, process one-time transactions, and update customer billing information

Other

• ach - a reader, writer, and validator for Automated Clearing House (ACH) files
• Akaunting - online accounting software designed for small businesses and freelancers
• Apache Fineract - core banking solution for financial institutions offering services to the world’s two billion underbanked and unbanked
• fredapi - Python API for FRED (Federal Reserve Economic Data) and ALFRED (Archival FRED)
• go-finance - Go library containing a collection of financial functions for time value of money (annuities), cash flow, interest rate conversions, bonds, and depreciation calculations
• Gringotts - a simple and unified API to access dozens of different payment gateways with very different APIs, response schemas, documentation, and jargon
• Hyperledger Fabric - distributed ledger framework for developing solutions and applications
• Learn Go with tests - resource for learning test-driven development with Go
• Omnipay- payment processing library for PHP
• pyfolio - portfolio and risk analytics in Python
• rtp-20022 - a project offering Go structures which can read and write XML encoded ISO 20022 messages for RTP payments
• Sequence - immutable, scalable, and easy to use ledger service
• XChange - Java library that provides a simple API for interacting with 60+ cryptocurrency exchanges, delivering a consistent interface for trading and accessing market data