invoicing

Dolibarr ERP CRM is a modern software package to manage your company or foundation's activity (contacts, suppliers, invoices, orders, stocks, agenda, accounting, ...). it's an open source Web application (written in PHP) designed for businesses of any sizes, foundations and freelancers.

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UpdatedFeb 20, 2026
PHP

kimai /kimai

Star4.5k

Kimai is the #1 open-source time-tracking application. From freelancers to companies and organisations - everyone can manage timesheets, generate reports, create invoices and so much more... Web-based multi-user application, available as On-Premise or SaaS version:https://www.kimai.org

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UpdatedFeb 20, 2026
PHP

frappe /books

Star4.1k

Free Accounting Software

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UpdatedFeb 19, 2026
TypeScript

bigcapitalhq /bigcapital

Star3.5k

💵 Bigcapital is financial accounting with intelligent reporting for faster decision-making, an open-source alternative to Quickbooks, Xero, etc.

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UpdatedFeb 18, 2026
TypeScript

ever-co /ever-gauzy

Sponsor

Star3.5k

Ever® Gauzy™ - Open Business Management Platform (ERP/CRM/HRM/ATS/PM) -https://gauzy.co

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UpdatedFeb 20, 2026
TypeScript

InvoicePlane /InvoicePlane

Star3k

A self-hosted open source application for managing your invoices, clients and payments.

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UpdatedFeb 16, 2026
PHP

MicroPyramid /Django-CRM

Star2.2k

Open Source CRM based on Django and svektekit

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UpdatedFeb 20, 2026
Python

andrewdwallo /erpsaas

Sponsor

Star1.4k

A Laravel and Filament-powered accounting platform featuring full double-entry accrual accounting, delivering modern automation for professional financial management.

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UpdatedJan 14, 2026
PHP

meteroid-oss /meteroid

Star964

Open-source Pricing and Billing Infrastructure 🚀 Subscription management, Invoicing, Pricing, Usage-based billing, Cost limiting, Grandfathering, Experiments, Revenue analytics & Actionable insights

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UpdatedFeb 19, 2026
Rust

itflow-org /itflow

Star899

All in One PSA for MSPs, which Unifies client, contact, vendor, asset, license, domain, ssl certificate, password, documentation, file, network and location management with ticketing and billing capabilities, with a client portal on the side.