Invoice Generator
Create a professional invoice with line items, tax and totals, then export a clean PDF — all in your browser. Free invoice generator, nothing uploaded.
INVOICE
| Description | Qty | Unit | Amount |
|---|---|---|---|
| Design work | 10 | $75.00 | $750.00 |
| Consulting | 4 | $120.00 | $480.00 |
The PDF is generated in your browser with pdf-lib and downloaded directly — nothing is uploaded. You remain responsible for correct tax treatment and local invoicing requirements.
- Add and remove unlimited line items
- Live subtotal, tax and total calculation
- On-page invoice preview before you export
- Clean PDF export powered by pdf-lib
- Currency selector and optional notes
- 100% private — nothing is uploaded to a server
How to use the Invoice Generator
- 1
Fill in your business (from) and client (to) details.
- 2
Set the invoice number, date and currency symbol.
- 3
Add line items with a description, quantity and unit price.
- 4
Enter a tax rate and any notes, then check the live preview.
- 5
Click Export PDF to download the finished invoice.
About the Invoice Generator
The ByteTools Invoice Generator lets you build a professional invoice and download it as a PDF in seconds. Add your business and client details, an invoice number and date, and as many line items as you need. Totals, tax and the grand total update live in an on-page preview as you type.
It is perfect for freelancers, contractors and small businesses that need a quick, clean invoice without signing up for accounting software. The PDF is generated entirely in your browser with pdf-lib and downloaded directly to your device — none of your business or client information is ever uploaded.
The tool handles formatting and arithmetic; you remain responsible for the correct tax treatment and any legal requirements in your region. Amounts shown are calculated from the figures you enter.
Frequently asked questions
How do I create an invoice for free?
Enter your business and client details, add line items with quantities and prices, set a tax rate and click Export PDF. The invoice is built and downloaded in your browser at no cost and without an account.
Is the PDF created on my device or a server?
Entirely on your device. The invoice PDF is generated in your browser with the pdf-lib library, so your business details, client information and amounts never leave your computer.
How is the invoice total calculated?
Each line's amount is quantity multiplied by unit price. The subtotal adds every line, tax is the subtotal multiplied by your tax rate, and the total is the subtotal plus tax. All three update live as you edit.
Can I add my own tax rate?
Yes. Enter any percentage in the tax field and it is applied to the subtotal. Set it to 0 if the invoice is tax-exempt or you handle tax separately.
Does this invoice generator store my information?
No. Nothing is uploaded, logged or stored. When you close the page the data is gone, which keeps your client and business details private.
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