E-Invoice Generator& Validator

Electronic invoicing (e-invoicing) is the exchange of invoice documents between a supplier and a buyer in an integrated electronic format. Unlike traditional paper invoices or PDF invoices sent via email, e-invoices are structured digital documents that can be automatically processed by accounting and ERP systems without manual data entry.

E-invoicing is becoming mandatory in many countries as governments seek to reduce tax evasion, improve VAT collection, and streamline business processes. Countries like Egypt, Saudi Arabia, UAE, Italy, France, and many others have implemented or are implementing mandatory e-invoicing systems for B2B and B2G transactions.

The key benefits of e-invoicing include: reduced processing costs (up to 80% savings compared to paper invoices), faster payment cycles, fewer errors through automation, improved tax compliance, better cash flow management, and environmental benefits from reduced paper usage.

UBL (Universal Business Language) is an international standard for electronic business documents developed by OASIS. UBL 2.1 is the most widely adopted version and provides standardized XML schemas for invoices, credit notes, purchase orders, and other business documents.

UBL Invoice Structure

A UBL invoice contains several key components organized in a hierarchical XML structure:

• Invoice Header: Contains invoice metadata including invoice number, issue date, due date, currency, and document type code
• Supplier Party: Information about the seller including name, tax ID, address, and contact details
• Customer Party: Information about the buyer with similar details as the supplier
• Invoice Lines: Individual line items with descriptions, quantities, unit prices, and line totals
• Tax Information: Tax categories, rates, and amounts for each line and total tax summary
• Monetary Totals: Subtotal, tax amounts, and payable amount with proper currency codes

UBL vs Other Formats

UBL is preferred over proprietary formats because it's an open international standard, widely supported by accounting software, government-approved in many countries, and provides rich semantic information. Alternative formats include EDIFACT (older, more complex), JSON (simpler but less standardized), and country-specific formats like ZUGFeRD (Germany) or FatturaPA (Italy).

UBL XML Format

UBL XML is the most widely accepted format for e-invoicing globally. It provides a standardized structure that ensures interoperability between different systems and countries. The XML format includes namespaces, proper data typing, and validation schemas that ensure data integrity and compliance with international standards.

Key advantages of UBL XML: standardized by OASIS, government-approved in most countries, comprehensive validation rules, supports complex business scenarios, and widely supported by enterprise software.

JSON Format

JSON (JavaScript Object Notation) is a lightweight, human-readable format that's easier to work with in modern web applications and APIs. While not as standardized as UBL XML for invoicing, JSON is increasingly used for API-based invoicing systems and internal business processes.

JSON advantages: simpler syntax, easier to parse in web applications, smaller file sizes, better for REST APIs, and more developer-friendly. However, it may require additional validation logic and may not be accepted by all government e-invoicing portals.

• 📄
  Dual Format Generation: Create invoices in both UBL XML and JSON formats. Switch between formats instantly to meet different system requirements and integration needs.
• 🧮
  Automatic Calculations: Automatic calculation of line totals, subtotals, tax amounts, and invoice totals. Support for multiple tax rates and currencies with proper rounding.
• ✓
  Invoice Validation: Comprehensive validation of required fields, data formats, and business rules. Catch errors before generating final invoice files.
• 💱
  Multi-Currency Support: Support for major currencies including EGP, SAR, AED, EUR, USD, and GBP. Proper currency code formatting according to ISO 4217 standards.
• 🔒
  Privacy-Focused: All invoice generation and validation happens locally in your browser. Your business and customer data never touches our servers.
• ⚡
  Instant Export: Download generated invoices immediately in XML or JSON format. Files are properly formatted and ready for submission to e-invoicing portals or import into accounting systems.
• 🌍
  International Standards: Compliant with UBL 2.1 international standard. Compatible with e-invoicing requirements in Egypt, Saudi Arabia, UAE, and European countries.

🏢 Business Invoicing

Generate professional electronic invoices for your customers. Create tax-compliant invoices that can be automatically processed by your customers' accounting systems. Ideal for businesses transitioning to e-invoicing or needing to comply with government mandates.

💻 Software Integration

Use as a reference implementation for building e-invoicing features into your ERP, accounting, or business management software. The generated code can serve as a template for your own invoice generation logic. Perfect for developers building financial applications.

📊 Tax Compliance

Ensure compliance with e-invoicing regulations in Egypt, Saudi Arabia, UAE, and other countries. Generate invoices in the required UBL format ready for submission to government portals. Reduce the risk of tax penalties from non-compliant invoices.

🔄 Invoice Testing

Test your invoice processing systems by generating sample invoices in different formats. Validate invoice files before submission to government portals or customer systems. Useful for QA teams and system integrators.

1. Validate Before Submission: Always use the validation feature before generating final invoice files. Check for missing required fields, incorrect data formats, and calculation errors. This prevents rejected submissions and delays.
2. Use Unique Invoice Numbers: Ensure each invoice has a unique sequential number. Many e-invoicing systems reject duplicate invoice numbers. Consider using a format like "INV-2025-0001" for better organization.
3. Include Complete Tax Information: Always provide accurate tax IDs for both issuer and customer. Incorrect or missing tax IDs are a common reason for invoice rejection by government systems.
4. Set Proper Due Dates: Include realistic payment due dates. This helps with cash flow management and provides clear payment terms to customers.
5. Keep Backup Copies: Save copies of all generated invoices for your records. Maintain both the XML/JSON files and human-readable versions for auditing purposes.
6. Verify Country Requirements: Different countries have specific e-invoicing requirements. Check your local tax authority's specifications for any additional mandatory fields or formats beyond the base UBL standard.

Invoice data contains sensitive business information that requires maximum security:

• ✅ 100% Client-Side Processing: All generation and validation happens in your browser
• ✅ Zero Server Communication: Your invoice data never leaves your device
• ✅ No Data Storage: We don't store, log, or track any invoice information
• ✅ Offline Capable: Save the page and use it without an internet connection
• ✅ Open Standards: Based on publicly available UBL and JSON specifications
• ✅ No Registration Required: Use the tool immediately without creating an account