Self-hosted accounting with invoicing, inventory, and reports
Stars3,920
Commitjust now
LicenseAGPL-3.0
Bigcapital is a self-hosted accounting system for small and medium businesses. It records sales and purchase invoices, tracks expenses and inventory, and produces financial reports from a double-entry ledger.
Free open source expense splitting for friends and family
Stars2,984
Commitjust now
LicenseMIT
Spliit is a free, open source expense-sharing app for friends and family, with group balances, flexible splits, and receipt scanning, and no account required.
Open-source usage metering and billing for AI and API products
Stars2,377
Commitjust now
LicenseApache-2.0
OpenMeter is an open-source usage-metering and billing platform for AI and API products, turning CloudEvents usage data into entitlements, Stripe invoices, and credit grants.
Open-source usage-based billing with metering, plans, and invoicing
Stars1,323
Commitjust now
LicenseAGPL-3.0
Meteroid is an open-source pricing and billing platform for SaaS, infrastructure, and AI companies, combining usage metering, plan management, subscriptions, and invoicing behind one API.
Open-source budgeting app that forecasts recurring bills and balances
Stars689
Commitjust now
LicenseFSL-1.1-MIT
Monetr is an open-source budgeting application focused on forecasting recurring expenses and upcoming balances. It links bank accounts through Plaid, tracks recurring bills and savings goals, and ships in English, Russian, and Ukrainian. Households can run it themselves with Docker Compose or use the vendor-hosted login; the code is published under the source-available FSL-1.1-MIT license.
Open-source subscription billing with metering, invoicing, and multi-gateway support
Stars37
Commit8mo ago
LicenseAGPL-3.0
UniBee is an open-source billing platform for SaaS subscriptions and usage-based metering, with automated invoicing, dunning, and Stripe and PayPal gateways.