Discover the top open source Invoicing & Finance software to manage billing, expenses, payments, and accounting. Take control of your finances!
Invoicing Finance
Take control of your finances with a free, private, local-first budgeting tool
CRM · Ecommerce · Invoicing Finance
Modern, modular accounting software for small businesses and freelancers
Invoicing Finance
Smart, self-hosted accounting alternative to QuickBooks and Xero
Ecommerce · Invoicing Finance
Self-hosted billing with Stripe, tax automation, and customizable invoices for SaaS teams
CRM · Ecommerce · ERP
Free, open-source ERP for manufacturing, retail, healthcare, and distribution businesses
Invoicing Finance
Self-hosted personal finance manager with AI receipts and mobile PWA support
Analytics · Invoicing Finance
Bloomberg-grade financial data in a chat interface — powered by AI and open source.
Invoicing Finance
Take back control of your finances — self-hosted, private, and open source.
Analytics · Invoicing Finance
Take control of your investments with open source portfolio tracking
Human Resources · Invoicing Finance · Productivity
Free, open-source HRMS for end-to-end human resource management
Invoicing Finance
Fast, secure, self-hosted invoicing without the CRM clutter
Ecommerce · Invoicing Finance
Self-hosted invoicing with time tracking, quotes, and client portals
Invoicing Finance · Productivity · Project Management
Track time, generate invoices, and manage projects with a powerful open-source time tracker
Ecommerce · Invoicing Finance
The open-source alternative to Stripe Billing and Chargebee for usage-based SaaS pricing
AI Assistants · Analytics · Invoicing Finance
Open-source fraud and AML detection with real-time monitoring and AI-assisted investigations
Authentication · Databases · Invoicing Finance
Self-hosted personal finance manager with Rails, Turbo, and PostgreSQL
AI Assistants · Invoicing Finance
AI-powered business operations for freelancers — invoicing, time tracking, and finance in one place
CRM · ERP · Invoicing Finance
All-in-one open-source ERP and business apps for growing businesses
Analytics · Databases · Invoicing Finance
Connect once, consume everywhere: financial data for Python, Excel, AI agents, and dashboards.
AI Assistants · Analytics · Invoicing Finance
Free, open-source stock market tracker with real-time data and AI-powered alerts
Ecommerce · Invoicing Finance
Sell digital products and subscriptions—Polar handles payments, taxes, and billing for you.
Invoicing Finance
Track your money across personal and business profiles with double-entry accounting
Invoicing Finance
Open-source expense splitting with multi-currency and bank integration
Invoicing Finance
Track your subscriptions, manage your budget, and save money—self-hosted and open source.
Invoicing Finance · Note Taking
Self-hosted personal finance tool for conscious budgeting and long-term planning
Managing finances effectively is crucial for any individual or organization. Open source Invoicing & Finance software provides a range of tools to streamline these processes, offering control and transparency over monetary operations. These solutions often include features like invoice creation, expense tracking, payment processing, and financial reporting.
The functionality within this category is diverse. Common capabilities include:
The value proposition of open source Invoicing & Finance software is significant. Users gain greater control over their data, reduce reliance on proprietary systems, and avoid vendor lock-in. These applications are often customizable to fit specific business needs and can integrate with other open source tools for a comprehensive solution. They empower teams to automate repetitive tasks, improve accuracy in financial records, and ultimately make better informed business decisions. Businesses can also reduce operational costs by leveraging self-hosted solutions and community support.