Invoice Gen

Invoice Gen for Windows 11 & 10

Professional invoices, fully offline.

Create invoices in seconds, export PDFs in three layouts, and track customers, stock, payments and reports, with your data on your own PC.

Get it free from Microsoft Store See features

Free · Windows 10 & 11 · Microsoft Store

Invoice Gen (Billora) dashboard with sales, dues and recent invoices (sample data)

What Is Invoice Gen?

Invoice Gen is a free, fast and fully offline invoice generator for Windows, made for freelancers, retailers and service providers. In the Microsoft Store it is listed as Billora.

Create polished invoices with multiple line items, tax and discounts, and automatic invoice numbers, then export PDFs in Classic, Modern or Minimal layouts. Every invoice moves from Draft to Unpaid, Partial and Paid as payments come in.

Around invoicing sits a complete small-business toolkit: a customer database, a product catalog with automatic stock deduction and low-stock alerts, payment tracking, five reports with PDF or Excel export, company branding, backups and Admin/Staff roles. No subscription and no internet needed.

Screenshots

  • Invoice list with payment status (sample data)

    Invoices

  • Printed invoice layout (sample data)

    PDF invoice

  • Product list with prices and stock (sample data)

    Products

  • Reports: sales, products, dues and cash flow

    Reports

Features

Free, with no hidden fees.

Professional invoices

Line items, tax, discounts and automatic numbering.

PDF in 3 layouts

Classic, Modern or Minimal, with your logo.

Customers

A searchable database linked to invoices and payments.

Products and stock

Prices and stock that update with every invoice.

Payment tracking

Partial and full payments update the status automatically.

Reports

Sales, products, dues, cash flow and stock; export to PDF or Excel.

How to Create an Invoice Offline on Windows

  1. Install

    Get Invoice Gen free from the Microsoft Store (listed as Billora).

  2. Add your company

    Enter your name, address and logo once.

  3. Create an invoice

    Pick a customer, add products, tax and discount.

  4. Export the PDF

    Choose Classic, Modern or Minimal and send it.

Who Uses Invoice Gen?

  • Freelancers Bill clients and track who has paid.
  • Small shops Invoice sales with automatic stock updates.
  • Service providers Record partial payments and dues.
  • Offline businesses Work without an internet connection.

System Requirements

Operating system
Windows 10 (version 1607 or later) or Windows 11
Processor
x64 and ARM64
Memory
4 GB or more
Internet
Only for features that go online (speed tests, lookups) and Store updates
Privacy
Your data stays on your PC. Privacy details

Why an Offline Invoice App?

Online invoicing services charge monthly and keep your customer and sales data on their servers. An offline invoice generator keeps everything in a local database on your PC, works without internet and has no subscription. Invoice Gen also backs up the database automatically every time it starts.

Invoicing Tips

  • Set up your company details and logo first so every PDF is branded.
  • Record partial payments so the Customer Due report stays accurate.
  • Check the Stock Report regularly to reorder before you run out.

Need to merge or compress PDFs? Try PDF HQ. More help is coming in our Windows guides.

Invoice Gen FAQ

Is Invoice Gen free?

Yes. It is 100% free, with no subscription and no hidden fees.

Why is it called Billora in the Microsoft Store?

Invoice Gen is listed in the Microsoft Store as Billora. It is the same app.

Does it need an internet connection?

No. It is fully offline, and your data stays on your device.

Can I export invoices as PDF?

Yes, in three layouts: Classic, Modern and Minimal, with your company branding.

Does it track stock?

Yes. Stock is reduced automatically on each invoice, with low-stock alerts.

Is my data backed up?

Yes. The database is backed up automatically on every launch (last 5 copies kept), and you can back up and restore manually.

Invoice clients in seconds, without a subscription.

Invoice Gen is free in the Microsoft Store (listed there as Billora).

Get it free from Microsoft Store