Smart Assistant: Fill customer name → Add products → GST auto-calculates → Click Generate Invoice. Company details from Settings appear on invoice.
⚠️ Demo Limit Reached (10 invoices). Activate a license key to create unlimited invoices.
📋 Invoice Details
Auto-generated, editable
👤 Customer Details
Type or select from saved customers
Required for B2B GST invoices
📄 Invoice Template
Classic
Modern
Minimal
Colorful
🔒 Custom templates available in Licensed version
💬 Additional Info
📦 Products / Services
💡 Click "+ Add Item" → Enter product name, quantity, price → GST calculates automatically. Select saved products from dropdown.
#
Product / Service
Qty
Unit
Rate (₹)
Disc%
GST%
Amount (₹)
Click "+ Add Item" to add products
Sub Total:₹0.00
Discount:₹0.00
Taxable Amount:₹0.00
CGST:₹0.00
SGST:₹0.00
Grand Total:₹0.00
Invoice Preview
Invoice #
Customer
Date
Sub Total
GST
Grand Total
Payment
Status
No invoices yet.
Add New Product
💡 Enter a unique product code for each item. HSN code is required for GST invoices. Set minimum stock to get low stock alerts.
Unique ID for this product
Price before GST
Get alert when stock goes below this
Required for GST invoices
Code
Product Name
Category
Price
Stock
Min Stock
GST%
HSN
No products. Click "+ Add Product"
Add New Customer
💡 GSTIN is required for B2B GST invoices. Save customers here to auto-fill details while creating invoices.
15-digit GST number
Name
Phone
Email
City
GSTIN
Type
Invoices
No customers. Click "+ Add Customer"
🔒
Reports & Analytics
Detailed sales reports, GST summaries, profit & loss, customer ledgers, and tax reports are available in the Licensed version. Activate your key to unlock.
💡 Select a template below to preview. Apply it to all new invoices. Licensed users can customize colors and add company logo.
Classic
Modern Dark
Minimal
Ocean Pro
Live Preview
Your Company Name
Address · Phone · Email
GSTIN: 23AAAAA0000A1Z5
INVOICE
INV-001
Date: Today
BILL TO
Customer Name
Customer Address, City
PAYMENT
Mode: Cash
Status: Paid
Product
Qty
Price
GST
Total
Sample Product
2
₹1,000
₹180
₹2,360
Sub Total: ₹2,000
CGST (9%): ₹180
SGST (9%): ₹180
Total: ₹2,360
Customize Template
🔒 Available in Licensed version
🔒 Available in Licensed version
Simple, Transparent Pricing
Choose a plan. Activate with your secret license key. Cancel anytime.
🆓
Demo
₹0
Try forever, limited features
✓ GST invoice generation
✓ Product & customer management
✓ 4 invoice templates
✓ Dashboard analytics
✗ Max 10 invoices only
✗ Single company only
✗ No advanced reports
✗ No company logo
🔥 Best Value
💼
Business
₹1,999
One-time license key · 1 year updates
✓ Unlimited invoices
✓ 1 company (upgradeable)
✓ All 4 templates + customization
✓ Company logo on invoice
✓ Advanced reports & GST summary
✓ Data export & backup
✓ 1 year free updates
✓ WhatsApp support
🏢
Multi-Company
₹3,499
One-time · Up to 5 companies
✓ Everything in Business
✓ Up to 5 companies
✓ Multi-user access (3 users)
✓ CA/Accountant mode
✓ Separate books per company
✓ Priority support
✓ 2 years free updates
✓ Custom invoice branding
⚡
Enterprise
Custom
Unlimited companies & users
✓ Everything in Multi-Company
✓ Unlimited companies
✓ Unlimited users
✓ E-Invoice & E-Way Bill
✓ Custom features on request
✓ Dedicated support manager
✓ On-site training
✓ Lifetime license available
Already Purchased? Activate Your Key
Your license key was sent separately after purchase. Enter it to unlock all features.
Company Profile
💡 This information appears on ALL your invoices. Fill it correctly once — it auto-fills on every invoice.
Invoice Settings
e.g. INV → INV-001
License & Security
Demo Mode Active
You are using BillZen Pro in free demo mode. Your license key (if any) is stored securely and is never displayed here for security. To activate, use the license key entry system.
Demo Mode — 10 invoice limit
🔐 Security Notice: License keys are generated uniquely per purchase. They are stored securely and never displayed inside the software UI. Do not share your license key with others.
Data Management
💡 All your data is stored locally in your browser. Export regularly as backup. Import to restore.
📤 Export All Data
Download a complete backup of all invoices, products, customers and settings as a JSON file.
📥 Import Data
Restore from a previously exported JSON backup file.
🗑️ Clear All Data
Permanently delete all invoices, products and customers. Cannot be undone.