Open Source Projects tagged "Invoices"
A curated collection of the best open source projects tagged "Invoices". Each listing includes a website screenshot along with a detailed review of its features.
Free online accounting for small businesses and freelancers
Stars
10,254Last commit
15 hours agoLicense
Unknown
Self-hostable accounting software covering invoicing, expense tracking, cash flow, and client portals. Free to use, available in 50+ languages.
Open Source Alternative to:
Transform complex usage data into accurate, real-time billing
Stars
10,728Last commit
14 hours agoLicense
AGPL-3.0
Open-source billing system that handles metering, usage-based pricing, and invoicing at scale. Perfect for AI, cloud, and API companies needing flexible monetization.
Open Source Alternative to:
Send invoices, accept payments, manage your business—all free
Stars
10,403Last commit
1 day agoLicense
Elastic-2.0
Free invoicing software for freelancers and small businesses. Create professional invoices, track expenses, accept online payments, and manage projects without hidden fees.
Open Source Alternative to:
Comprehensive open-source business management platform
Stars
Stars growing over the last 30 days8,663Last commit
11 hours agoLicense
AGPL-3.0
All-in-one solution for ERP, CRM, HRM, ATS, and project management to streamline your business operations
Open Source Alternative to:
AI-powered embedded AR/AP automation for platforms
Stars
8,356Last commit
2 years agoLicense
AGPL-3.0
Crater offers AI-driven invoicing workflows, payments, and working capital tools to enhance your platform with minimal technical effort.
Open Source Alternative to:
Capture – Capture screenshots, generate PDFs, scrape content, extract metadata, and automate browsers with one API.
Stellar Hosted