Open source self hosted accounting software

From the abacus to written ledgers to adding machines and calculators, people have been using accounting tools for centuries.

Most businesses start off by relying on spreadsheets to manage the books, and many continue to use spreadsheets, even as the business grows and becomes more complex.

The result is disparate data spread across multiple spreadsheets that are often out of date or present conflicting numbers.

Businesses need to invest in modern accounting software solutions:

  1. Consolidate the financial data of a business in one place.
  2. Automate accounting processes like invoicing, accounts payable, accounts receivable, income and expenses.
  3. Make it much easier to disseminate financial data to both internal and external stakeholders.

With all financial data in a single place, accounting staff won’t have to spend hours cross-posting information, re-keying numbers, or manually reconciling data. Ultimately, this saves a business time, reduces costs, and ensures more accurate financial reporting.

Best Open Source accounting and invoicing solutions

Kill Bill

Kill Bill is a leading open-source subscription billing, payment platform and accounting software includes all the basic billing and payment features.

It features included: It is accessible, adaptable, Controllable, Configurable, Extensible, Flexible, Scalable, and has all the necessary options needed in an accounting software.

It also helps you to control your business, client data, avoid vendor lock-in, access real-time analytics and financial reports, scale your billing and payment infrastructure and grow your business.

Likewise, it is released under the apache-2.0 License and written with Java language.


Invoice plane

Invoice plane is a great self-hosted open-source financial accounting software to manage quotes, invoices, client, and payments for small business or individuals.

We highly recommend it for anyone doing freelance work or for sending simple invoices and getting paid quickly and securely via PayPal.

It offers many features that cover the whole concept of billing System. It let clients pay the invoices to providers like PayPal, Stripe or even using Bitcoin via Coinbase.



A PHP, powerful yet simple open source CRM system. It has been tailored to freelancers and small businesses.

With it, you can host on your own server, get paid, sending the same invoices each month, everything is customizable, support multiple currency, save frequently used items,  import data from anywhere, and more.



Crater happens to be yet another free and open-source Invoice app for freelancers and small businesses. You can easily utilize this to create and send professional invoices, and a quick and detailed quote including prices, discounts, inventory a lot more.

It offers reports and allow you to input different tax types, track payment, manage your invoices from iOS and Android.


5- Firefly


Firefly a self-hosted personal finance manager free and open source use to save and organize your money because it gives you insight into and control over your finances.

The most special thing on it that it is let you  keep your eye on the money without having to upload the financial records to the cloud.

Just like some others, it can help you keep track with income, budget, expenses.

It licensed under GNU AGPL 3.



Akaunting is a free online accounting software for businesses. It has all the tools to manage your money.

Fortunately, you can access it from any device. They also offer cash flow, expense tracking, powerful reporting, it also can create category for incomes.

Akaunting is not really free. You have to pay for some features like journal entry, chart of account and balance sheet. I am an accountant.

It licenses under the GPL-3.0 license and written with PHP language.



LedgerSMB is a web-based, open-source ERP accounting software that originally provides small and mid-size businesses. It aims to provide multi currency accounting without vendor lock-in.

In addition to all the essential features a LedgerSMB has to offer, it offers some great integrating invoicing, order processing, quotations, inventory management, shipping, and more.

It is released under GNU GENERAL PUBLIC LICENSE Version 2 and written with Perl.



OSB is a free, simple web application billing software which offers open-source version as well released under the  GPL-3.0 license.

It features include: it let you create and send invoices to your clients via email, manage invoice disputes, print or download customized reports, review payments collected, export your invoices via .pdf, charts demonstrating invoices and payments statistics, and more.



jBilling is one of the best enterprise world’s leading open source billing solution. Well, the primary aim of it is giving you all the flexibility and customizable options you need for highly complex billing.

It comes to disrupt established markets fast with your innovative products, gives you complete visibility into source code, and more. jBilling offers a community edition with limited features.



BillRun is an interesting open-source business CRM platform. We recommended it for a big data billing solution such as VoIP providers, digital businesses and SMBs.

It offers the identical features as our proven, enterprise-grade billing solution, can be handle in real-time, wholesale reports for management, fully support in high-availability volumes and sizes.

The database that they use is MongoDB that can support for different type of documents, and it has written with PHP.



SolidInvoice is an open source, simple and elegant invoicing solution that allows you to manage clients and send invoices and quotes, receive notifications via text message, email.

With it clients and contacts management can create and manage quotes, Invoices, it has RESTful API.

It is released under MIT license and written with PHP language.



OpenBRM is a free open source flexible billing system and CRM built on a time-tested framework. It  deploys with an integrated ecommerce component.

It offers the most flexible options for management, subscriptions, Telecom, converged billing, discounts and bundles.

OpenBRM exposes all the API over SOAP, REST, it has in built CRM module to generate quotes and handle Support Tickets.



We reviewed 12 Best Accounting and Invoicing Solutions, which are all available for you to choose from.

If you have any other recommendations for this list or comments in general, we’d love to hear them below!

Accounting software enables companies for managing finances and keeps tracking of estimates, invoices, expenses, time tracking, and payment handling.

Top 5 Open Source Accounting Software In the Year 2021

Accounting software is one of the first and most critical application for any business. The right accounting system would help you to keep track of your company’s money going in and out. We have compiled a list of the top 5 free and open source accounting software and cover them in this blog post.


InvoiceNinja is one of the popular and modern open source accounting software. It’s 100% free and a self-hosted accounting system. However, you can use it as (SaaS) software as a Service by choosing a subscription plan. InvoiceNinja has impressive features such as invoices, payment handling, vendors, expenses, tasks, projects, and many more. In addition, InvoiceNinja provides beautiful mobile applications for iPhone and Android devices. This open source invoicing software is PHP Laravel framework source code is available at GitHub.

Here is a list of the key feature for InvoiceNinja:

  • Create and Email Invoices/Quotes in Real-Time
  • 40+ Payment Gateway Integration Options
  • Multiple Company Support
  • Create Recurring Invoicing & Auto-Bill Clients
  • Proposals Creation Tool

Learn more about InvoiceNinja


Akaunting is another one of the top open source accounting software based on the PHP Laravel framework. It provides out of the box beautiful interfaces for desktop, mobile, and tablet. Akaunting comes with excellent features that fulfill the financial need of any business. Moreover, you can setup it on your private server and keep control of all the important data. Its source code is available on GitHub.

Following are the key features of Akaunting:

  • Customer Management
  • Beautiful Interface
  • Mobile & Tablet Ready Interface
  • 100% Financial Data Ownership
  • Lifetime FREE Updates

Learn more about Akaunting


InvoicePlane is free and self-hosted accounting software. It offers out of the box CRM (customer relationship management) module. CRM feature enables the business to manage the key information of customers. You can easily create tasks such as quotations, invoices, receipts, and payments. InvoicePlane supports several payment methods for financial transactions. Moreover, it supports multilingual and you can run it in the language of your choice. However, InvoicePlane is written in PHP CodeIgniter framework and all of its source code is available on GitHub.

InvoicePlane offers the following key points:

  • Quotes, Invoices, Payments
  • Recurring invoices
  • Manage your Clients
  • Customize easily
  • One-Click Online Payments

Learn more about InvoicePlane

Kill Bill

Kill Bill is one of the best open source accounting software based on Java. It is a robust, scalable, and customizable invoicing system. It has impressive feature set that can be used to handle all the financial operations. Further, Kill Bill supports plugins, and you can either use available plugins or create your own for enhancing the system. Moreover, it offers an API that enables businesses to do the integration with third-party services. It’s source code is available on GitHub.

Kill Bill comes up with the following key features:

  • Financial analysis
  • History tracking
  • Invoice management
  • Real time analytics
  • Real time notifications

Learn more about Kill Bill


Crater is open source accounting software. It is 100% free and ideal for freelancers and small businesses. Crater has some great features such as invoice handling, estimates, track expenses, and payments. Further, Crater offers out of the box mobile applications for Android and iPhone devices. This open source invoice management system is written in the PHP Laravel framework. Moreover, its source code is available on GitHub with a complete development roadmap.

Crater supports the following important features:

  • Invoices management
  • Payment tracking
  • Extensive Reporting
  • Support Tax Handling
  • Mobile application for Android and iPhone

Learn more about Crater


We have discussed the top 5 free and open source accounting software in this tutorial. All have a great number of features and are widely used by many businesses. You can review this blog post thoroughly and relevant links. It would also help you to choose the right accounting software for your business.

Further, is on the way to enhance the stack of open source products in multiple languages and frameworks. For regular updates, please stay tuned at Invoicing category for more interesting articles.


You may find the following links relevant.

Written by Jane