Your back office runs in a browser tab.
Invoicing, staff records, projects and your document archive in one place, built for German rules. 352 tools, hosted in Germany, no installation and no AI anywhere in it.

01 - Invoicing
Write a real invoice. Right here.
This is not a screenshot and not a mock-up. It is the same renderer that produces the PDF your customer receives, running in your browser. Change a line, watch the document change. No account needed.
Recipient
Line items
Live preview
Final PDF is checked by the serverChanges update the shipped Pro preview renderer immediately. Nothing is saved or sent to an account.
E-invoicing that validates
XRechnung 3.0 (CII) and ZUGFeRD to EN 16931. The output passes the official KOSIT validator.
The whole chain
Quotation, order confirmation, delivery note, invoice, cancellation, credit note and dunning, linked to each other.
Your accountant stays in the loop
DATEV EXTF handover for SKR 03 and SKR 04, so your tax advisor receives clean bookkeeping data instead of a shoebox.
Dunning stays your decision
Deadlines and default interest are calculated for you. Nothing goes out until you say so.

02 - Staff
Personnel files that survive an audit.
Since the Federal Labour Court decision of 13 September 2022 (1 ABR 22/21), working time has to be recorded. Personarium does that, along with the rest of the paperwork a small team generates.
Digital personnel file
Contracts, certificates and documents per employee, with roles deciding who sees what.
Time and shifts
Time tracking under ArbZG, shift planning, and absence management under BUrlG.
Payroll preparation
Prepared data for LODAS and DATEV Lohn und Gehalt. Werkzeu.ge prepares, it does not run payroll.

03 - Projects
From the hour worked to the invoice line.
Projects, tasks and tracked time in one board, with the customer pipeline next to it. Recorded hours become invoice lines without anybody retyping them.
Project management
A proper Kanban board with columns, WIP limits, checklists, milestones and deadlines.
Customer pipeline
Deals by stage with win probability and value, on the same customer records the invoicing uses.
Billable time
Track hours against a task, then bill them at the agreed rate.


04 - Everything else
And the rest of the paperwork.
The parts that do not fit a category but eat the day anyway. 352 tools in total, all in the same window.
Aktenschrank
Your document archive, with an encrypted vault for the things that must not be readable on the server.
Formularamt
Over 6,800 German government forms catalogued, more than 3,200 fillable straight in the browser.
Fristenwächter
Deadlines from your documents and your profile, in one place, before they become expensive.
Amtsprofil
Your master data, encrypted in the browser, filling forms for you. The key never leaves your device.

05 - Pricing
One price. Everything in it.
No module pricing, no per-document fees. Prices include 19% German VAT. Cancel monthly.
Free
0 €
No sign-up for guest tools
- Quick invoice generator with SEPA QR code
- Formularamt search and fill
- Calculators and PDF tools
Plus
9,99 € / month
Gold founder price instead of 16,99 €, held for as long as your subscription stays active. 44 days left.
- Full invoicing with XRechnung and ZUGFeRD
- Aktenschrank, Fristenwächter, Amtsprofil
- Projects, tasks and time tracking
- 14 days free to try
Pro
13,99 € / month
Gold founder price instead of 25,99 €
- Everything in Plus
- Personarium: staff records, time and shifts
- Teams, recurring invoices, DATEV handover
- Client portal for your projects
What Werkzeu.ge does not do
Werkzeu.ge is not a tax advisor, not a lawyer and not a notary, and it does not replace one. It helps you understand, prepare and organise your own paperwork, and hands clean data to the professionals who advise you. It files nothing with the tax office, runs no payroll, and moves no money.
Open it and judge for yourself.
Everything is live at werkzeu.ge. The guest tools need no account at all.