Invoice Forge

Live

Invoices, forged in seconds.

Generate polished PDF or DOCX invoices from a simple form, with calculation logic built in — the tool Diorama actually uses to invoice its own clients.

React · FastAPI · Docker

Open Invoice Forge→ View source

A React frontend manages invoice input and local storage; a FastAPI backend handles formatting and document generation. This is an example of a capability that would typically be part of a SaaS accountancy package — and it’s the tool actually used to generate invoices for Diorama Consulting.

What it does

PDF and DOCX output

One form, two professional document formats — pick whichever your client's accounts team prefers.

Built-in calculation logic

Line items, rates, totals and tax handled automatically, so the arithmetic is never the thing you get wrong.

Local storage of drafts

Invoice details persist in the browser between sessions — return and re-issue without retyping.

Invoice Forge runs live — no sign-up needed to look around.

Open Invoice Forge→