Accounting & Invoicing
Open-source accounting and invoicing tools
7 of the 129 accounting and invoicing tools in this directory are open source, according to their own sites.
All of them are free or have a free plan.
Listings checked up to Nov 13, 2026 · Where the facts come from
| Tool | Price | Free plan | Runs on |
|---|---|---|---|
| AkauntingOpen-source accounting you can host yourself or use in the cloud | Free plan · from $72/yr | Yes | Web |
| OdooBusiness app suite whose Accounting app is free when used on its own | Free plan · from $31.10/mo | Yes | Web, iOS, Android |
| GnuCashFree double-entry accounting for home and small business use | Free | Free | macOS, Windows, Linux |
| BigcapitalOpen-source accounting you host yourself, with a cloud version planned | Free | Free | Web |
| InvoicePlaneFree self-hosted invoicing for quotes, invoices and payments | Free | Free | Web |
| InvoiceShelfOpen-source invoicing and expense tracking you host yourself | Free | Free | Web |
| LedgerSMBOpen-source double-entry accounting and ERP you install yourself | Free | Free | Web |
Common questions
Which accounting and invoicing tools are open source?
7 of the 129 accounting and invoicing tools in this directory are open source, according to their own sites. They are Akaunting, Odoo, GnuCash, Bigcapital, InvoicePlane, InvoiceShelf and LedgerSMB.
When was this checked?
Each listing shows its own date. On this page they run from Oct 17, 2026 to Nov 13, 2026. Vendors change prices and plans without notice, so confirm on their site before you buy.
This page is built from the listings. A tool is here because its listing says so, and each listing names the pages it was read from.