Tag
21 catalogue entries use this topic; each Project's license policy is labeled separately.
Open-source ERP and CRM with 40-plus integrated business apps
Odoo is an open-source ERP and CRM whose 40-plus integrated apps cover accounting, inventory, sales, and project work from one database.
Open-source finance management with invoicing, bank sync, and AI assistance
Midday is an open-source finance management app for freelancers and small businesses covering invoicing, bank sync, reconciliation, time tracking, and file storage.
Open-source usage-based billing with metering, invoicing, and entitlements
Lago is an open-source billing platform for usage-based, subscription, and hybrid pricing, with metering, invoicing, and payment orchestration behind one API.
Self-hosted invoicing and billing with quotes, payments, and time tracking
Invoice Ninja is a self-hosted invoicing and billing app for freelancers and small businesses, covering quotes, invoices, online payments, and time tracking.
Self-hosted accounting software for invoices, expenses, and cash flow
Akaunting is a self-hosted accounting app for small businesses and freelancers that tracks income, expenses, and cash flow from a web browser.
Open-source time tracking for freelancers and agencies
Solidtime is an open-source time tracker for freelancers and agencies with timers, timesheets, projects, clients, billable rates, and Docker self-hosting.
Self-hosted invoicing with estimates, expenses, payments, and APIs
Crater is a self-hosted invoicing app for freelancers and small businesses with estimates, invoices, payments, and expense tracking.
Open-source ERP, CRM, HRM, and project platform with time tracking
Ever Gauzy is an open-source business management platform combining ERP, CRM, HRM, project management, and time tracking in one self-hostable TypeScript system.
Open-source usage-based billing with metering, credits, and invoicing
Flexprice is an open-source billing platform for usage-based, credit-based, and hybrid pricing, with real-time metering and automated invoicing.
Open-source time tracking with timesheets, reports, and invoices
Kimai is a free open-source time tracker for freelancers, agencies, and companies that combines timers, calendar timesheets, and invoice generation in one web application.
Self-hosted accounting with invoicing, inventory, and reports
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.
Self-hosted open-source billing and invoicing for hosting providers
Paymenter is a self-hosted open-source billing platform for hosting providers, automating subscriptions, invoicing, and service provisioning.
Open-source usage metering and billing for AI and API products
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
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 time tracking and team management platform
Ever Teams is an open-source time tracking and workforce management platform with task boards, project costing, and desktop and mobile timers.
CLI-first bank account for AI agents with human-approved transfers
0 Finance is a CLI-first financial workflow project for agent-driven invoicing, transfer proposals, and human approvals. Its current site says the product is being deprecated and new signups are disabled. Agents and scripts use the zero command line tool to check balances, create and send invoices, propose ACH or IBAN transfers, and view savings positions. Read operations run immediately, while transfers and withdrawals become proposals that a person reviews in the companion web dashboard. The same primitives are reachable through an HTTP API and an MCP server for assistants. Accounts hold funds as USDC in self-custody wallets, with idle balances allocated to lending protocols for variable yield and smart-contract failures insured up to a stated limit. The hosted dashboard serves existing customers, and the MIT-licensed codebase can be forked and run independently with Docker. The vendor states the product is being deprecated and has disabled new signups. No public pricing is documented. A full independent deployment also needs credentials for third-party auth and payment providers, so self-hosting is nontrivial.
Open-source subscription billing with metering, invoicing, and multi-gateway support
UniBee is an open-source billing platform for SaaS subscriptions and usage-based metering, with automated invoicing, dunning, and Stripe and PayPal gateways.
Free open-source accounting software for small business servers
Frappe Books is free, open-source accounting software that small businesses and freelancers install on their own server and use in a web browser.
Expense reports, corporate cards, and travel in one app
Expensify is a spend management service that handles expense reports, corporate cards, bill pay, invoices, and travel booking with help from its Concierge AI assistant.
Business account software for payments, invoices, and financial workflows
Mercury provides business account software for viewing balances, making payments, issuing invoices, and controlling team access to financial workflows.
Cloud accounting for invoices, expenses, bank records, and business reports
QuickBooks Online is Intuit’s cloud accounting application for managing income, expenses, invoices, and financial reports for a business.