Open-Source Subscription Billing & Payments Platform
- killbill
- billing
- payments
- subscriptions
Repository Index
47,133 repositories indexed
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Kimai is the #1 open-source time-tracking application. From freelancers to companies and organisations - everyone can manage timesheets, generate reports, create invoices and so much more... Web-based multi-user application, available as On-Premise or SaaS version: https://www.kimai.org
- timetracker
- timetracking
- doctrine
- twig
Your web application for managing personal data.
- dashboard
- dashboards
- manager
- symfony
A self-hosted open source application for managing your invoices, clients and payments.
- php
- invoices
- invoicing
- open-source
A Terminal-style trading dashboard built entirely on free public market data. No API keys, no subscriptions.
Open Source Invoicing Solution for Individuals & Businesses
Empower your hosting business with FOSSBilling, the free and open-source solution for efficient billing and client management.
The programmable open source core ledger for fintech
- ledger
Apache OFBiz is an open source product for the automation of enterprise processes. It includes framework components and business applications for ERP, CRM, E-Business/E-Commerce, Supply Chain Management and Manufacturing Resource Planning. OFBiz provides a foundation and starting point for reliable, secure and scalable enterprise solutions.
- geospatial
- ofbiz
- web-framework
- java
Scalable, event-driven, deep-learning-friendly backtesting library
- reinforcement-learning
- deep-reinforcement-learning
- gym-environment
- openai-gym
Bitcart is a free and open-source self-hosted payment processor for BTC, LTC, BCH, XMR, ETH, TRX, USDT and more
The open source operating system for digital agencies. Built with Directus and Nuxt.
OpenBudgeteer is a budgeting app based on the Bucket Budgeting Principle
- self-hosted
- csharp
- blazor
- budgeting
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
💰 Ocular - A fancy, simplistic, beautiful and straight-forward, open-source budgeting tracking app to track your budget across the years. Easy to use, to get started and to set up.
- budget-app
- budgeting
- finance
- finance-management
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
Open source Farm management Information System (FMIS) - Connecting farms to the world
- ruby
- agriculture
- erp
- management
Open Source Algorithmic Trading Engine
Trading Environment(OpenAI Gym) + DDQN (Keras-RL)
💸 Lightweight currency conversion library, successor of money.js
- cashify
- money
- moneyjs
- cash
Self-hosted restaurant POS with tables, kitchen display, reservations, QR ordering, loyalty and local-network operation.
- casaos
- docker
- gst
- india
💰💰 Convert currency rates directly from your terminal!
- exchange
- rates
- currency
- javascript
Open-source event management, ticketing and membership platform for communities, clubs, independent venues and independent artists.
- django
- django-ninja
- eu-vat
- event-management
AI crypto trading bot with deep neural network (84.9% accuracy, 25 coins). BiLSTM + Attention trained on GPU. Bybit, Binance, OKX, Gate.io. Free cloud or self-hosted.