easy-invoice-pdf

Free & Open-Source Invoice Generator - No Sign-Up, No Ads, Instant PDF Export, 100% In-Browser, and Fully Customizable Templates. ⭐ Star the repo if you like it. Maintained by VladSez on GitHub, where it has earned 985 stars from the community.

It's actively developed around fintech, invoice, invoice-generator, and is a solid reference for anyone building with these tools.