Simple and elegant invoicing solution.
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47,133 repositories indexed
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Super simple PDF invoicing
- pdf-invoice
- invoice-pdf
- pdf-generation
- prawn
OpenBudgeteer is a budgeting app based on the Bucket Budgeting Principle
- self-hosted
- csharp
- blazor
- budgeting
Modern & private time tracking for macOS & Windows. No cloud, no registration, no paywall. Just download and track your work hours 100% offline.
Technical Analysis Library for Golang
- technical-analysis
- golang
- go
- stock
The JavaScript library for ExtensionPay.com — payments for your browser extensions, no server needed.
- payments
- javascript-library
- monetization
- chrome-extension
monetr is a budgeting application focused on planning for recurring expenses.
Create your Java crypto trading bot in minutes. Our Spring boot starter takes care of exchange connections, accounts, orders, trades, and positions so you can focus on building your strategies.
- trading-bot
- trading-strategies
- trading
- bot
SHKeeper is a self-hosted and open-source cryptocurrency gateway payment processor. It's integrate with popular CMS, any e-commerce, your own code or product
- accept-crypto
- accept-crypto-payments
- crypto
- crypto-gateway
Double-entry accounting & ERP for the web
- postgresql
- accounting
- billing
- web-app
ACH implements a reader, writer, and validator for Automated Clearing House (ACH) files. The HTTP server is available in a Docker image and the Go package is available.
- ach
- automated-clearing-house
- money
- golang-library
Trady is a handy library for computing technical indicators, and it targets to be an automated trading system that provides stock data feeding, indicator computing, strategy building and automatic trading. It is built based on .NET Standard 2.0.
- strategy
- technical
- analysis
- stock
Oracle3: open-source trading engine and MCP server for prediction markets. Finds fee-adjusted no-arbitrage violations across related event contracts and trades them live on Kalshi, Polymarket and Solana, or on paper, under pre-trade risk limits. 13 MCP tools, JSON CLI, agent skills, 600+ tests.
- algorithmic-trading
- kalshi
- polymarket
- python
Matching Engine for Limit Order Book in Golang
- exchange
- trading
- orderbook
- execution-engine
Say It Simply, Test It Properly. Agent-powered strategy research with independent ledger checks and reproducible reports.
Countries - ISO-639, ISO-3166 countries codes with subdivisions and names, ISO-4217 currency designators, ITU-T E.164 IDD phone codes, countries capitals, UN M.49 codes, IANA ccTLD countries domains, FIPS, IOC/NOC and FIFA codes, VERY VERY FAST, compatible with Databases/JSON/BSON/GOB/XML/CSV, Emoji countries flags and currencies, Unicode CLDR.
- go
- iso
- iso3166
- iso3166-1
A complete payment library for Elixir and Phoenix Framework
- elixir
- payment
- gringotts
- payment-gateway
A composable, real time, market data and trade execution toolkit. Built with Elixir, runs on the Erlang virtual machine
- trading
- trading-bot
- trading-systems
- cryptocurrency
Open source Farm management Information System (FMIS) - Connecting farms to the world
- ruby
- agriculture
- erp
- management
SDK for growing mobile in-app purchases
- ios
- purchases
- iap
- sdk
Open Source Algorithmic Trading Engine
📈 A menu bar app that updates cryptocurrencies prices in real-time
- bitcoin
- litecoin
- bitcoin-price
- javascript
💸 Lightweight currency conversion library, successor of money.js
- cashify
- money
- moneyjs
- cash
Invoicing for freelancers & small businesses
- invoicing
- electron
- cross-platform
- offline-first