head to head · open source
ERPNext vs SolidInvoice
ERPNext has 40,868 GitHub stars, 13,377 forks, 1,822 open issues and last shipped yesterday. SolidInvoice has 980 stars, 248 forks, 190 open issues and last shipped yesterday. ERPNext leads on adoption by 4,070% (40,868 vs 980 stars). ERPNext is written in Python under GPL-3.0; SolidInvoice is written in PHP under MIT. ERPNext has attracted 33% as many forks as stars, SolidInvoice 25%. ERPNext was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| ERPNext | SolidInvoice | |
|---|---|---|
| GitHub stars | ★ 41K | ★ 980 |
| License | GPL-3.0 | MIT |
| Written in | Python | PHP |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 13K | ⑂ 248 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick ERPNext if
- You weight community size — 41K stars and counting
- You want the GPL-3.0 license terms
- Your stack matches Python
- You value the larger contributor base for long-term maintenance
pick SolidInvoice if
- You want the SolidInvoice feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches PHP
- You evaluated both and SolidInvoice fits your workflow better
About ERPNext
ERPNext Powerful, Intuitive and Open Source ERP Live Demo Website Documentation ERPNext 100% Open Source ERP System to help you run your business. Motivation Running a business is a complex task handling invoices, tracking stock, managing personnel, and other daily operations. In a market where software is sold separately to manage each of these tasks, ERPNext does all of the above and more, for free. Key Features Accounting : All the tools you need to manage cash flow in one place, right from recording transactions to summarizing and analyzing financial reports. Order Management : Track inventory levels…
read the full ERPNext overview →
About SolidInvoice
SolidInvoice The open source invoicing platform for freelancers and small businesses. Send beautiful quotes and invoices, accept online payments, automate recurring billing — and own every byte of your data. Why SolidInvoice? Most invoicing tools force a trade off: easy to use or respectful of your data. SolidInvoice gives you both. It's a mature, production ready billing platform you can run on your own server for free, or let us host for a flat $8/month — no per client limits, no surprise tiers, no lock in. Built on Symfony 7 and PHP 8.4, it's designed to be extended, integrated, and trusted. ✨ Features 💼…
read the full SolidInvoice overview →
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Frequently asked questions
Is ERPNext or SolidInvoice more popular?
ERPNext has 40,868 GitHub stars and SolidInvoice has 980. ERPNext has the larger community by that measure.
Are ERPNext and SolidInvoice free?
Both are open source. ERPNext is licensed under GPL-3.0 and SolidInvoice under MIT. Neither carries a licence fee.
What is the difference between ERPNext and SolidInvoice?
ERPNext is written in Python and SolidInvoice in PHP. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, ERPNext or SolidInvoice?
Choose ERPNext if you want the larger community (40,868 stars) or its GPL-3.0 licence terms. Choose SolidInvoice if its feature set, stack or MIT licence fits better. Both are self-hostable.