Free tools

Tools you can use right away.

No sign-up, no email address needed, no cookies. Everything runs in your browser: nothing you type leaves your computer.

Available · in French

Late-payment letter for an unpaid invoice

Three levels: a polite reminder, a firm reminder, and a formal notice (mise en demeure) that cites the French Commercial Code (late-payment penalties and the flat €40 recovery fee). Fill in six boxes, copy the letter. The tool and the letters are in French, for business clients in France.

Open the tool (French)

In preparation

Checklist: ready for e-invoicing in 2027

What a micro-business or small company in France needs to check before it has to issue its invoices through an approved platform (plateforme agréée): client data, format, tool, habits.