Invoice Generator (Working App)

A real working web app (single HTML file, no install, runs offline in any browser) to create clean, professional invoices in minutes. Add your business info once, add line items with auto-calculated totals and tax, then print or save as PDF straight from the browser. Save drafts locally and export/import as JSON - your data stays on your device. Built for freelancers who want a fast, no-subscription way to bill clients.