Open Invoice Generator: Free Online Invoice Maker & Templates

An invoice generator is an online software tool designed to create, calculate, format, and export professional billing invoices in seconds. Instead of wrestling with manual spreadsheets, clunky word processors, or complex accounting suites, an invoice generator automates line-item calculations, tax computations (such as Sales Tax, VAT, or GST), client discounts, and balance totals, producing a clean, download-ready PDF invoice instantly.

An invoice functions as a legally recognized commercial document issued by a seller or service provider to a client or buyer. It itemizes the products supplied or services rendered, confirms agreed pricing and quantities, specifies applicable taxes, and clearly states the payment terms and due date (such as Due Upon Receipt, Net 15, or Net 30).

Once the invoice is issued, the buyer uses the provided payment details—such as bank account numbers, wire/ACH instructions, or payment links (PayPal, card, QR codes)—to remit payment by the agreed date, while both parties retain the invoice for bookkeeping and tax compliance.

Yes, Open Invoice Generator is 100% free with no hidden subscriptions, trial periods, export limits, or watermarks. You can create and download unlimited professional invoices without entering a credit card or creating an account. All features—including custom branding, tax calculation engines, QR code payments, and digital signatures—are completely free for personal and commercial use.

Generating an invoice with Open Invoice Generator takes less than a minute:

1. Enter Business & Client Details: Fill in your company name, contact info, and your client's billing address.
2. Set Dates & Terms: Add a unique invoice number, issue date, and payment terms (e.g. Due on Receipt, Net 30).
3. Add Billable Line Items: Itemize products or services with descriptions, quantities, unit prices, and discounts.
4. Customize Appearance: Choose your template design (Modern Minimal, Corporate, Tech Monospace, etc.), brand color, and currency.
5. Add Payment QR & Sign: Provide your bank details or scan-to-pay QR code (UPI, SEPA, PayPal) and sign on-screen.
6. Download or Share: Click Download PDF for a vector document, or Send to generate a prefilled email or WhatsApp message.

To add your logo, click the logo upload area at the top of the invoice editor. Select any image file (PNG, JPG, SVG, or WebP) from your device. The editor automatically formats and sizes your logo to fit cleanly into your chosen invoice template layout.

Because Open Invoice Generator is privacy-first, your logo is stored in your browser's local cache so it automatically appears on future invoices without ever being transmitted to external servers.

You get a high-resolution, print-ready vector PDF document formatted for standard A4 and US Letter printing and instant digital sharing. In addition, you can export your raw invoice data as a structured JSON backup file, allowing you to archive, restore, or transfer your invoice records across devices anytime.

Yes, Open Invoice Generator supports over 150 global currencies, including USD ($), EUR (€), GBP (£), INR (₹), CAD ($), AUD ($), JPY (¥), AED (د.إ), and many more. You can customize the currency code, currency symbol, and symbol placement (prefix or suffix) to match your local accounting practices.

Yes, you can generate invoices in 10 international languages: English, Spanish (Español), French (Français), German (Deutsch), Italian (Italiano), Portuguese (Português), Hindi (हिन्दी), Arabic (العربية), Japanese (日本語), and Chinese (中文).

The app features complete Right-to-Left (RTL) layout support for Arabic, ensuring labels, table headers, and totals align naturally for Middle Eastern clients.

No, Open Invoice Generator does not automatically convert amounts between currencies using real-time forex exchange rates.

Because currency exchange rates fluctuate throughout the day and cross-border billing typically relies on contractually agreed rates or bank-specific conversion spreads, you enter the exact unit prices and amounts directly in your desired billing currency. This ensures your invoices remain 100% predictable, accurate, and compliant with your specific client contract without surprise rate changes.

Yes, absolutely. If your business is not registered for sales tax, VAT, or GST (for example, if you operate as a freelancer or sole proprietor below your country's statutory registration threshold, or if you provide tax-exempt supplies), simply select 'None' under the Tax settings or set the tax rate to 0%. Your invoice will display clean subtotals and totals without applying any tax line items or requiring tax registration numbers.

Open Invoice Generator provides dedicated tax engines tailored to primary global tax systems:

• US & Canada Sales Tax: Handles single or combined tax percentages, including state sales tax, provincial sales tax (PST), and Harmonized Sales Tax (HST).
• VAT (UK, EU, Middle East, etc.): Supports standard, reduced, and zero-rated VAT calculations with dedicated fields for company registration and VAT identification numbers.
• GST Regimes (Australia, Canada, Singapore, India, etc.): Accurately calculates applicable goods and services taxes, regional tax splits, and tax identifiers.
• Custom Tax Rules: Define custom tax labels and percentages to comply with any country, state, or municipality's specific rules.

Yes, you can seamlessly create cross-border invoices for international clients. Simply select your client's billing currency, input international banking credentials (such as SWIFT/BIC and IBAN), specify export tax treatment (such as zero-rated export of services or reverse-charge rules under VAT/GST), and provide digital payment links or QR codes (such as PayPal, Stripe, or SEPA transfer) for fast international settlements.

Open Invoice Generator produces standard, legally compliant tax invoices containing all statutory fields: unique sequential numbering, complete seller and client business details, tax identification numbers (EIN, VAT ID, Tax Reg No, GSTIN), itemized descriptions, tax breakdowns, issuance dates, and digital signatures.

Note on government-mandated e-invoicing portals: If your country has enacted mandatory B2B electronic clearance rules requiring real-time registration via a government portal or Invoice Registration Portal (such as Peppol in Europe, ZATCA in Saudi Arabia, SDI in Italy, or IRP in India), you will need to submit your invoice details through your government-designated portal in addition to generating this client-facing invoice document.