> For the complete documentation index, see [llms.txt](https://code-hunger.gitbook.io/invoice-generator/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://code-hunger.gitbook.io/invoice-generator/getting-started/quickstart.md).
# Quickstart
Welcome, and thank you for choosing **Invoice Generator**! This guide will help you get started quickly with setup, customization, and basic usage.
### π¦ Whatβs Inside
* β HTML, CSS, JS files (no backend required)
* β 20 Pre-designed invoice templates
* β Quote & Purchase generator modules
* β IndexedDB storage (no server/database required)
* β Multi-language & Multi-currency support
* β Built-in signature input
* β Day & Night mode toggle
* β Responsive UI β works on all screen sizes
* β Bank details & UPI support (for Indian users)
### π₯ Requirements
This tool is built as a **frontend-only application** β no server or database setup is needed.
* VS Code Installed
* A modern browser (Chrome, Firefox, Edge)
* Optional internet (only required to load Google Fonts initially)
### π§ Feature Overview
#### 1. **Invoice Generator**
* Create professional invoices with support for:
* **Hourly billing**
* **Fixed pricing**
* **Amount-only billing**
* Select from **20 ready-made templates**
* Customize logo, client info, itemized list, taxes, discounts, and terms
* Save to browser or download as PDF
#### 2. **Quote Generator**
* Generate professional estimates or quotes
* Same level of customization as invoices
#### 3. **Purchase Invoice Generator**
* Designed for purchase receipts or supplier billing
* Upload the product catalog for faster input
#### 4. **Offline Support**
* Fully functional offline after initial font load
* All invoice data is saved securely in **IndexedDB**
#### 5. **Multi-Language**
* Built-in support for multiple languages (editable from settings)
#### 6. **Multi-Currency**
* Use any currency symbol or format
* Customize per client or invoice
#### 7. **Signature Input**
* Sign invoices directly via screen (mouse or touchscreen)
#### 8. **Day/Night Mode**
* Toggle for light and dark UI themes for user comfort
#### 9. **Multi-Color Schemes**
* Choose from various theme colors for branding or preference
#### 10. **Client & Product Upload**
* Bulk upload of clients via CSV/JSON
* Bulk upload of products for the purchase module
#### 11. **UPI & Bank Support (India)**
* Add UPI ID and QR Code for digital payment
* Add multiple bank accounts for payment details
#### 12. **Settings Panel**
* Add the client and from details, so that you won't have to enter data every time
* Set the default currency and language of the application
* Set the default template for your invoices, purchase orders, and quotes
* You can import products from an Excel sheet, while creating purchase, it will automatically be shown as a suggestion.
#### 13. **Print & PDF Download**
* Clean, printer-friendly format
* 1-click PDF export
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