Invoice Generator

Create professional invoices with multiple templates. Add line items, taxes, and discounts. Download as PDF instantly.

Invoice Generator is a free, browser-based tool that creates professional invoices with 6 beautiful templates. Add line items, taxes, discounts, and your company logo. Download as PDF instantly. Choose from Clean, Modern, Classic, Bold, Minimal, or Corporate designs. All processing happens directly on your device; no files are uploaded to any server. Whether you are a freelancer, small business owner, or contractor, this tool provides a fast and reliable way to create polished invoices without requiring any software installation or account creation.

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Tutorial

How to use

1
1

Enter Business and Client Details

Fill in your business name, address, email, and phone number. Optionally upload your company logo. Then enter your client's name, address, and email in the Client Information section.

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Add Invoice Items

Set the invoice number, issue date, and due date. Add line items with descriptions, quantities, and unit prices. Apply tax rates and discounts as needed. The totals calculate automatically.

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3

Preview and Download

Choose from 6 professional templates and review your invoice in the live preview panel. When satisfied, click Download PDF to get your invoice as a professionally formatted PDF file.

Guide

Complete Guide to Invoice Generator

What is Invoice Generator?

Invoice Generator is a specialized online tool designed to help you create professional invoices with multiple templates and download them as PDF instantly. It runs entirely in your browser, which means no software installation is required and your data never leaves your device.

This tool is essential for freelancers, small business owners, and contractors who need polished invoices without relying on expensive accounting software. The browser-based approach ensures compatibility across all operating systems and devices.

By processing everything locally, the tool guarantees that your business and client information remain completely private and secure throughout the entire process.

Why Professional Invoices Matter

A well-designed invoice reflects your professionalism and helps ensure timely payment. It clearly communicates what services were provided, the amounts owed, and payment terms; reducing confusion and disputes.

This tool removes the formatting burden so you can focus on running your business. Whether you choose the Corporate template for enterprise clients or the Minimal template for creative projects, your invoice will look professionally formatted.

The privacy-first approach is particularly valuable for businesses handling sensitive client data, as no financial information is ever transmitted over the internet during the invoicing process.

Best Practices for Invoicing

Include all essential details: your business name, client information, invoice number, dates, itemized services, and payment terms. Use consistent numbering for easy tracking and record-keeping.

Set clear payment terms and due dates. Common terms include Net 15, Net 30, or payment upon receipt. Include your preferred payment methods and any late payment policies in the notes section.

Send invoices promptly after completing work. Use the live preview to verify all details are correct before downloading. Keep copies of all invoices for your accounting records.

Examples

Worked Examples

Example: Freelance Web Development Invoice

Given: A freelance web developer billing a client for a website redesign project.

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Step 1: Select the 'Modern' template for a clean, contemporary look.

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Step 2: Enter your business name, address, email, and phone number. Upload your logo.

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Step 3: Add the client's company name, address, and billing email.

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Step 4: Set invoice number INV-2024-001, today's issue date, and a due date 30 days out.

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Step 5: Add line items: 'Website Design' (1 x $3,000), 'Development' (40 hrs x $150), 'Hosting Setup' (1 x $200).

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Step 6: Set tax rate to 0% (if tax-exempt) and click Download PDF.

Result: A professionally formatted invoice totaling $9,200, ready to send to the client as a PDF attachment.

Example: Small Business Product Invoice

Given: A small business selling handmade products to a retail store.

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Step 1: Select the 'Corporate' template for a formal business impression.

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Step 2: Enter business details and upload the company logo.

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Step 3: Fill in the retail store's billing information.

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Step 4: Set invoice number and dates with Net 30 payment terms.

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Step 5: Add product line items with quantities and unit prices. Set tax rate to 8.5%.

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Step 6: Add a note thanking the client and include bank transfer details in payment terms.

Result: A polished invoice with itemized products, calculated tax, and clear payment instructions, ready for download.

Use Cases

Use cases

Freelancer Billing Clients

Generate professional invoices for freelance work such as web development, graphic design, or consulting services. Add hourly rates or project-based fees as line items. The Clean or Minimal template keeps the focus on your services and amounts. Everything processes locally for complete privacy.

Small Business Invoicing

Create branded invoices for your small business by uploading your company logo and using the Corporate template. Add multiple product or service line items with quantities and unit prices. Apply applicable tax rates and offer early payment discounts. Download and send polished PDF invoices instantly.

Contractor Progress Billing

Issue progress invoices for ongoing projects, tracking completed milestones as individual line items. Use the Bold template for a strong professional impression. Include payment terms and notes about project status. No account or sign-up needed; generate as many invoices as you require.

Formula

Invoice Calculation Formulas

Subtotal

S=i=1nqi×piS = \sum_{i=1}^{n} q_i \times p_i
VariableMeaning
SSubtotal (sum of all line items)
q_iQuantity of item i
p_iUnit price of item i
nNumber of line items

Discount Amount

D=S×d100D = S \times \frac{d}{100}
VariableMeaning
DDiscount amount
SSubtotal
dDiscount percentage
d_{fixed}Fixed discount amount

Tax Amount

T=(SD)×t100T = (S - D) \times \frac{t}{100}
VariableMeaning
TTax amount
SSubtotal
DDiscount amount
tTax rate percentage

Total

Total=SD+T\text{Total} = S - D + T
VariableMeaning
SSubtotal
DDiscount amount
TTax amount

Frequently Asked Questions

?How does this invoice generator work?

Fill in your business details, client information, and line items. Choose a template and the tool formats everything into a professional PDF using pdf-lib, entirely in your browser.

?Is this tool free?

Yes. Completely free with no limits, no sign-up, and no watermarks on your downloaded invoices.

?Is my data private and secure?

Yes. Everything runs locally in your browser. No business data, client information, or files are sent to any server. Your invoice content never leaves your device.

?What templates are available?

Six professional templates: Clean (simple and elegant), Modern (contemporary layout), Classic (traditional business style), Bold (strong colors and typography), Minimal (whitespace-focused), and Corporate (formal business design).

?Can I add my company logo?

Yes. Click the Upload Logo button to add your company logo to the invoice. The logo appears in the header area and is included in the downloaded PDF.

?How are taxes and discounts calculated?

Enter a tax rate percentage and/or discount percentage. The tool automatically calculates the subtotal, tax amount, discount amount, and final total based on your line items.

?What format is the output?

The tool generates a standard PDF file using US Letter size (8.5 x 11 inches) with professional margins, compatible with any PDF reader or printer.

?Can I create multiple invoices?

Yes. Generate as many invoices as you need. Each invoice can have a unique invoice number, different clients, and different line items. There are no usage limits.

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