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Invoice Generator

Stop paying monthly for invoicing software you barely use. Build your own professional invoice system with visual workspace, client tracking, and PDF generation in hours.

AGAgustin Zalazar
·0 remixes

Designed for

  • Freelancers & solo consultants managing invoices
  • Tracking payments across multiple clients
  • Replacing spreadsheet-based invoicing
  • Creative professionals preferring visual workflows

Key highlights

  • Spatial invoice canvas
  • PDF export
  • Client management
  • Cash flow reporting
  • PIN-protected sharing

Technology stack

Frontend

  • TypeScript
  • Tailwind CSS
  • Recharts
  • PDF Export

Backend

  • Supabase

UI Components

  • shadcn/ui
  • Radix UI
  • Lucide Icons

Deployment

  • Lovable
  • GitHub

About this template

This template gives you an invoice management app that looks professional and you don't need development experience to make it work. Billie organizes your invoices on an infinite spatial canvas where you can pan, zoom, and browse your work visually, or switch to a traditional grid or list view when you need to find something fast.

The technical parts are already handled. Authentication, client-side PDF generation, responsive layouts, database-backed storage with row-level security, all done. You can focus on sending invoices and getting paid instead of wrestling with software setup.

Ten pages come ready to go: a login screen, a home workspace with three view modes (canvas, grid, and list), a dashboard with revenue flow charts, invoice creation and editing pages with live A4 preview, a client directory, individual client detail pages with payment behavior insights, a reports page with cash flow analysis, a settings page, and a public invoice view with optional PIN protection for sharing with clients.

Instead of paying monthly for invoicing software you only half-use, or copying spreadsheet templates that look unprofessional, you get a fully functional invoicing system in hours. It's customizable, self-hosted, and has no per-invoice fees.

This Template Typical Paid Tools
Cost Free to start $15–50/month
Setup time Hours Days to weeks
Customization Full control Limited to plan tier
Lock-in None, export anytime Subscription required

Best Use Cases

Freelance Client Billing

Create and send professional invoices directly from a visual workspace that keeps your billing organized. The live A4 preview updates as you fill in line items, so you see exactly what your client receives. Freelancers who present polished invoices report fewer payment disputes and faster turnaround on outstanding balances.

Client Payment Tracking

Monitor which invoices are draft, sent, viewed, paid, or overdue from one dashboard. Billie auto-transitions invoice status from "Sent" to "Viewed" when a client opens the public link, giving you visibility into client engagement without follow-up emails. That visibility helps you time payment reminders for when they're most effective.

Revenue Reporting

Generate cash flow analysis and revenue flow charts without exporting data to a separate tool. The reports page uses a dedicated analytics layout with green-gradient visualizations, and the dashboard surfaces key stats at a glance. Service businesses that track revenue trends monthly can spot seasonal patterns and plan capacity before cash flow tightens.

Multi-Client Management

Store client details, view their invoice history, and access follow-up suggestions and payment behavior insights from individual client pages. The client directory supports color-coded accents and filtering, so you can manage a growing roster without losing track of who owes what. Organized client records shorten the time between finishing work and getting paid.

See yourself in one of these? Remix this template and start building.

What You Can Build

This template gives you the foundation for:

  • A complete invoicing system that replaces your spreadsheet workflow with professional, shareable invoices, live previews, and automatic status tracking
  • A client billing dashboard where you monitor outstanding payments, revenue trends, and cash flow from a single dark-mode workspace
  • A public invoice portal where clients access their invoices through a secure PIN-protected link and you see when they've viewed them

Getting Started

Step 1: Remix This Template

Click "Remix" to create your copy. You'll have a complete invoicing application ready to customize, with eleven pages including your invoice workspace, dashboard, client directory, reports, settings, and a public invoice viewer. All the pages and features are already working. The guided onboarding walks you through setting up your business details, adding your first client, and creating your first invoice. You just need to make it yours.

If this template isn't the right fit, you can remix a different one, no wasted work.

Step 2: Customize Your Brand

Change the green accent color to match your brand identity. Update the Anton display headings and Geist Mono body text to reflect your style. Upload your business logo through the built-in logo upload field, which stores it securely. Lovable's visual editor lets you modify layouts and see changes instantly as you work. You don't need to know code to make it look exactly how you want.

Step 3: Add Your Content

Replace the sample data with your real business information, client details, and invoice history. Set up your payment details section with your SWIFT/IBAN information using reusable payment templates. Configure your preferred currency (the template auto-detects it based on your location, with manual override available). Add your business name, address, and tax details in settings so every invoice carries your professional identity.

Step 4: Connect Your Tools

Set up email authentication or Google OAuth for secure access. Configure your Supabase backend for database storage with row-level security. Manage public invoice sharing with optional PIN-gated access for added security. Lovable has built-in integrations for the tools freelancers and small businesses actually use.

Step 5: Go Live

Deploy your invoicing app with one click. Lovable handles the hosting, security, and performance optimization automatically. Your app goes live worldwide in minutes, and you can start sharing public invoice links with clients right away. Each invoice gets a unique shareable URL with optional PIN protection, so clients can view and download their invoices without creating an account.

Conclusion

This invoicing template works for freelancers and small business owners who want professional billing tools without monthly software subscriptions. You get a visual invoice workspace without learning design software, client tracking without stitching together separate tools, and revenue reporting without exporting to spreadsheets.

Whether you're sending your first freelance invoice or replacing an invoicing subscription that keeps raising its prices, this template gives you a solid foundation. The spatial canvas keeps your invoices browsable and organized, the live A4 preview catches formatting issues before you send, and PDF generation happens instantly on your device. The template is free to start and straightforward to set up. You could be sending your first professional invoice by tonight.

Features & capabilities

  • Infinite Spatial Canvas

    Pan and zoom through your invoices on a visual 2D workspace with 3D perspective transforms, or switch to grid and list views.

  • Live A4 Invoice Preview

    See exactly what clients receive as you fill in line items, catching formatting issues before you hit send.

  • Guided Onboarding Flow

    Walk through business setup, first client, and first invoice with a step-by-step overlay that celebrates completion with confetti.

  • Client Payment Insights

    View payment behavior patterns and follow-up suggestions on individual client pages to time reminders effectively.

  • Revenue Flow Dashboard

    Monitor outstanding payments, cash flow trends, and invoice status from charts that surface patterns at a glance.

  • Automatic Status Tracking

    Invoices auto-transition from draft to sent to viewed to paid, giving you visibility without manual updates.

  • Currency Auto-Detection

    Your local currency is detected automatically with manual override, so invoices match your business location.

  • Reusable Payment Templates

    Save your SWIFT and IBAN details once and apply them to new invoices without re-entering banking information.

  • Sequential Invoice Numbering

    Automatic invoice numbering keeps your records organized with manual override when you need control.

  • PIN-Protected Public Links

    Share invoices with clients through unique URLs with optional 6-digit PIN gates for added security.

  • Dark Design-Forward Interface

    A polished dark theme with Anton display typography and Geist Mono body text that matches creative professional standards.

  • Row-Level Database Security

    Your invoice data stays private with Supabase-backed storage and authentication protecting every record you create.