Open-Source Invoice Generator - Free and Self-Hostable

What open source changes for an invoice tool

You can read the code that builds your PDF. That is a different kind of privacy claim from a page that tells you your data is safe.

• The rendering code is in the repository, so you can check what ends up in the file
• Fork it when the default layout is wrong for your market
• Run your own copy when a hosted tool is not allowed where you work
• If this project stops being maintained, your copy still builds

Written to be read

The invoice schema is one Zod file, and every form field, PDF template and share link derives its types from it. Adding a field is a change in one place that the compiler then chases through everything downstream.

The templates are React components. Changing a column heading, a font weight or the order of the totals is an edit to JSX, not to a template language you have to learn first.

Both PDF templates render from the same invoice data, so a change you make to one has an obvious counterpart in the other.

Host it yourself

The copy at easyinvoicepdf.com and a copy on your own server run the same code.

• Clone the repository and install the dependencies with pnpm
• Deploy anywhere Next.js runs
• Change the default template, the fonts or the wording for your own business
• Keep it inside your own network when that is what your policy requires

Create an invoice and download the PDF

Four steps on the hosted copy, and the same four on yours.

• Open the generator. An empty invoice is already loaded.
• Fill in the seller and buyer blocks, then add your line items.
• Watch the preview beside the form redraw with each change.
• Press Download PDF, or send your client a share link instead.