Open-source Zoho Expense alternatives

Odoo is a bundle of browser-based, open-source business applications. Apps cover sales (CRM and eCommerce), a website builder, inventory and manufacturing, projects, invoicing and accounting, point of sale, human resources and marketing. It is written in Python, and GitHub lists the license as 'Other', so check the repository for the exact terms.

Each app can be used as a stand-alone application, but they are designed to work together, so installing several apps gives you a full-featured ERP system. This lets a business start with a single function, such as sales or invoicing, and add modules as its needs grow without changing platforms.

The README points to setup instructions for a standard installation, an eLearning course and a business game called Scale-up for learning the software, and developer tutorials for extending it. Odoo can be run on your own infrastructure, and the vendor's website offers commercial services. It suits small and mid-sized companies looking for an integrated business suite.

This entry points to ERPNext, the open-source enterprise resource planning system developed in the frappe/erpnext repository on top of the Frappe framework. It aims to replace the patchwork of separate programs a business often uses for invoices, stock, personnel and daily operations with a single integrated product.

Its modules include accounting for cash flow, transactions and financial reports; order management for inventory levels, replenishment, sales orders, customers, suppliers and shipments; manufacturing for production cycles, material consumption, capacity planning and subcontracting; asset management from purchase to disposal; and project delivery. Topics also list HR, CRM, procurement, retail, distribution, healthcare and support functions. It is written in Python, and a live demo is available.

ERPNext is GPL-3.0 licensed and can be self-hosted. The Frappe team also offers managed hosting, which suits companies that want the software without running servers. It is aimed at small and mid-size organizations that want an alternative to proprietary ERP suites.

Dolibarr is an open-source ERP and CRM package for managing an organization's activity: contacts, suppliers, quotes, invoices, orders, stock, agenda, accounting, human resources, document management and manufacturing. It targets small, medium and large companies, foundations and freelancers.

It is a PHP web application with JavaScript enhancements, released under the GPL, version 3 or later, and can be used as a standalone application or as a web app reached over the internet or a LAN. Installation options include DoliWamp for Windows, DoliDeb for Debian and Ubuntu, DoliRpm for Red Hat family distributions, a Docker image, or a manual setup on Apache or Nginx with MariaDB, MySQL or PostgreSQL.

The project has a large community with free forums, and preferred partners offer commercial support if needed. Because it is modular, organizations switch on only the features they need. It suits small businesses and associations that want an integrated business suite they can host themselves.

TaxHacker is a self-hosted accounting app aimed at freelancers, indie hackers and small businesses that want to spend less time tracking expenses and income. You upload photos of receipts, invoices or PDFs, and an LLM extracts the details, including product names, amounts, items, dates, merchants and taxes, into a structured, spreadsheet-like database.

Custom fields can be defined with your own AI prompts to extract any extra information, and transactions are automatically sorted into categories. The app converts currencies, including crypto, using historical exchange rates from the transaction date, and offers filtering, multi-project support, import and export and custom categories to simplify reporting and tax filing. Topics mention OCR, Gemini, OpenAI and Ollama as model options.

Unsorted documents can be stored until you are ready to process them manually or with AI. TaxHacker is written in TypeScript and licensed under MIT, and the README warns that it is in early development and should be used at your own risk. It suits people comfortable self-hosting who want AI help with bookkeeping.