The best Project Management alternative to InvoicePlane is Odoo, which is both free and Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to InvoicePlane and 12 are Project Management Tools so hopefully you can find a suitable replacement. Other interesting Project Management Tool alternatives to InvoicePlane are ERPNext, Dokos, Elorus and Moxie.
Open-source business application suite developed in Python, offering ERP, CRM, e-commerce, and project management, reducing software needs and synchronization costs with over 260 core modules.
ERPNext is a free and open-source integrated Enterprise Resource Planning (ERP) software developed by Frappé Technologies Pvt. Ltd. and is built on MariaDB database system using a Python based server-side framework.
Open-source ERP and business management platform based on ERPNext, specifically adapted for European businesses. Features accounting, CRM, e-commerce, project management, and compliance with French/EU regulations.
Elorus is the time-tracking, invoicing & project management solution for professionals & agencies. Focus on innovation & reap the fruit of your labor.
Moxie is a single digital workspace with all the tools needed to start, manage and grow a freelancing business, with a built-in personalized community to help freelancers connect with others, develop and refine their craft and get help from experts.
Collaborate on projects, track time, manage expenses and invoice your customers. Available in the cloud, from any device!.
Pancake is Online Invoicing, Project management, Time Tracking and proposal software for your business that you pay for just once and install on your own server.
CoManage was developed for everybody who wants to manage his organization efficiently, but doesn’t like to do the administrative part. With CoManage you have access to a set of useful online tools that are essential to do your daily administrative tasks in an effective and...
Comprehensive and customizable project management software with real-time collaboration, reusable templates, drag-and-drop editing, workflow automation, and multi-view options, designed for efficient management of projects, invoices, forms, and client communications while replacing multiple apps.
Project management and invoicing for freelancers and small businesses. DuetApp is a PHP application you can run on your server, VPS, or desktop/laptop.
Mac time tracking automation: freelance project tracking, timesheets, invoicing & productivity feedback
Agentic ERP for startups. It unifies operations, marketing, and investor reporting — turning chats and tasks into structured, data-driven progress.
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