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
45%
AGPL 3.0

solidtime

Invoicing Finance · Productivity

8,924

Modern open-source time tracker for freelancers and agencies with invoicing, multi-org support, and Toggl/Clockify migration built in.

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84
Repo Health
81
Technical
70
Dependency
Built with
PHP 45%
TypeScript 30%
Vue 23%
Updated 1 weeks ago
Python
100%
Other

OpenBB

Analytics · Databases · Invoicing Finance

73,016

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

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81
Repo Health
80
Technical
67
Dependency
Built with
Python 100%
Updated 1 weeks ago
TypeScript
98%
MIT

SplitPro

Invoicing Finance

1,435

Self-hosted, open source expense splitting with multi-currency, recurring bills, and bank imports — a complete Splitwise replacement you control.

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81
Repo Health
77
Technical
69
Dependency
Built with
TypeScript 98%
Updated 1 months 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.

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77
Repo Health
66
Technical
65
Dependency
Built with
PHP 63%
Vue 18%
Gherkin 13%
Updated 1 weeks ago
TypeScript
62%
Unlicense

Invio

Invoicing Finance

1,180

Self-hosted invoicing without the bloat

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77
Repo Health
71
Technical
80
Dependency
Built with
TypeScript 62%
Svelte 28%
Updated 2 weeks ago
PHP
71%
MIT

Yaffa

Invoicing Finance

108

Self-hosted personal finance app for long-term financial planning with AI-powered transaction parsing and investment tracking.

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77
Repo Health
78
Technical
69
Dependency
Built with
PHP 71%
Vue 24%
Updated 1 weeks ago
TypeScript
96%

Finance

AI Assistants · Invoicing Finance

899

Bloomberg-grade financial data and AI-powered analysis through a conversational chat interface you can self-host.

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63
Repo Health
62
Technical
70
Dependency
Built with
TypeScript 96%
Updated 1 weeks ago
PHP
48%
AGPL 3.0

Crater

Invoicing Finance

8,347

Open source invoicing and billing platform for freelancers and small businesses — create estimates, track expenses, accept Stripe payments, and run recurring invoices from your own server.

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54
Repo Health
68
Technical
69
Dependency
Built with
PHP 48%
Vue 40%
Updated 2 years ago
TypeScript
96%
AGPL 3.0

Midday

Invoicing Finance · Productivity

15,000

All-in-one AI-powered business operations platform for freelancers and solo entrepreneurs to manage invoicing, time tracking, banking, and financial intelligence.

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53
Repo Health
78
Technical
67
Dependency
Built with
TypeScript 96%
Updated 3 months ago
Ruby
70%
AGPL 3.0

Maybe

Authentication · Databases · Invoicing Finance

54,282

Self-hostable personal finance app that gives you full ownership of your financial data with a clean, minimal Rails-powered interface.

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52
Repo Health
82
Technical
0
Dependency
Built with
Ruby 70%
HTML 23%
Updated 1 years ago
Vue
54%
GPL 3.0

Financial Freedom

Invoicing Finance

2,922

Own your financial data with a self-hosted, privacy-first budgeting app that replaces Mint and YNAB.

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48
Repo Health
67
Technical
74
Dependency
Built with
Vue 54%
PHP 44%
Updated 4 months 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.

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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.

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