A lightweight, client-side-only invoice manager. All data stays in your browser's localStorage—no server, no tracking, complete privacy.

🧾 Use Now

• 100% Client-Side: No backend, no API calls, no data leaving your browser
• Local Storage: All invoices persist in localStorage
• Print-Ready: Professional PDF export via browser print
• Company Branding: Upload logo and set sender details
• Tax Support: Configurable default tax rates
• Search & Filter: Find invoices by client or ID
• Dashboard Stats: Total revenue and pending amounts at a glance

1. Open the app
2. Go to Settings → Add your company name, address, and logo
3. Click New Invoice → Fill in client details and line items
4. Save and print to PDF

invoicer.app/
├── index.html          # Single-page application
├── css/
│   ├── style.css       # Main styles
│   └── print.css       # Print-specific styles
└── js/
    ├── storage.js      # localStorage abstraction
    ├── model.js        # Invoice data model
    ├── ui.js           # DOM manipulation
    └── app.js          # Event bindings and routing

Invoice {
  id: string,
  client: { name, email, address },
  date: Date,
  dueDate: Date,
  status: 'draft' | 'paid' | 'overdue',
  items: [{ description, qty, rate }],
  taxRate: number,
  notes: string
}

• No cookies
• No analytics
• No external requests
• Data stored only in localStorage

Export your data anytime via browser developer tools (localStorage.getItem('invoices')).

No build step required—just static HTML/CSS/JS.

# Local development
npx serve .

# Or just open index.html in browser

This project is part of a larger collection of MCP tools, games, and frameworks.

See github.com/Mnehmos for the complete ecosystem.

MIT

Built with vanilla JS. Powered by Gemini 3 architectural reasoning.