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DarkInvoice

Black Book Edition
The Black Book standard
No server. No account. No trace.
Runs dark
01

No account

Nothing to sign up for. No email, no password, no identity attached to anything you write here. Open the page and work.

02

No server

There is no backend to breach, sell, or hand over. Not a private one, not an encrypted one — none. Your book exists on your device and nowhere else.

03

No signal

Zero outbound requests. No API calls, no form posts, not even a font pulled from a third party. Nothing you type crosses a network.

04

No trace

No analytics, no pixels, no cookies, no session IDs. Whoever published this page cannot see a single number you enter. Neither can anyone else.

Your book exists in exactly one place — this browser, this device. No sync, no cloud copy, no support desk that can bring it back. Lose the device and the book is gone. That is the design, not a bug. Burn a copy to a file if you want one, and wipe the device clean whenever you like.

Business profile

This appears at the top of every invoice you create.
PNG or JPG. Stored locally in your browser.

Create invoice

Fill in the customer and amount, then export a PDF.
Customer
Invoice
$

Invoice preview

Choose Save as PDF as the destination in the print dialog.