Categories / Invoicing & Finance

Open Source Invoicing & Finance Apps

Discover the top open source Invoicing & Finance software to manage billing, expenses, payments, and accounting. Take control of your finances!

27 apps available

Apps in Invoicing & Finance

PHP
82%
Other

Akaunting

Invoicing Finance

10,123

Open-source online accounting for small businesses and freelancers — invoices, expenses, and reporting without monthly fees or vendor lock-in.

View details
98
Repo Health
73
Technical
63
Dependency
Built with
PHP 82%
Blade 13%
Updated 1 weeks ago
PHP
84%
Other

Invoice Ninja

Invoicing Finance · Project Management

10,078

Self-hostable invoicing, time-tracking, and multi-gateway payment platform for freelancers and small businesses, with built-in e-invoicing compliance for EU and global standards.

View details
97
Repo Health
83
Technical
62
Dependency
Built with
PHP 84%
Updated 1 weeks ago
C++
55%
Other

FinceptTerminal

Analytics · Invoicing Finance

31,638

Open-source Bloomberg alternative with AI agents and real-time market data

View details
88
Repo Health
57
Technical
0
Dependency
Built with
C++ 55%
Python 43%
Updated 2 weeks ago
Python
100%
Other

OpenBB

Analytics · Databases · Invoicing Finance

73,016

The AI Workspace for Finance: Connect Data, Run AI Agents, Build Analytics

View details
81
Repo Health
80
Technical
67
Dependency
Built with
Python 100%
Updated 1 weeks ago
PHP
63%
Other

BillaBear

Ecommerce · Invoicing Finance

760

Self-hostable subscription management and billing platform with Stripe integration, tax automation, configurable workflows, and Twig-based document generation.

View details
77
Repo Health
66
Technical
65
Dependency
Built with
PHP 63%
Vue 18%
Gherkin 13%
Updated 1 weeks ago
Dart
96%
Other

Pursenal

Invoicing Finance

47

Free, cross-platform personal and business finance manager with multi-profile support, double-entry accounting, and full offline operation.

View details
47
Repo Health
59
Technical
0
Dependency
Built with
Dart 96%
Updated 1 weeks ago

About Invoicing & Finance

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:

  • Invoice Generation: Creating professional invoices with customizable templates and branding.
  • Expense Management: Tracking business expenses, categorizing costs, and generating expense reports.
  • Payment Processing: Integrating with payment gateways to accept online payments securely.
  • Financial Reporting: Generating key financial statements like profit and loss statements, balance sheets, and cash flow reports.
  • Budgeting: Tools for creating and managing budgets to control spending.
  • Tax Calculation & Reporting: Automating tax calculations and preparing reports for filing purposes.

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.

Join founders buildingwith open source

Opinionated takes, migration guides, cost-saving tips, and insights from the open source ecosystem.

Subscribe on Substack
Join 750+ subscribers