Invoice Generator & Maker Flux 4+

Create and send professional invoices in minutes. Manage clients, track payments, and stay organised with our fast, easy, and multi-currency invoice maker.

Invoice Maker & Invoice Generator: Flux for Easy, Simple, Fast, Professional Invoicing app for sending invoices to your customers.

Wasting time manually inputting data into an excel spreadsheet?
Flux Invoice is the invoice maker professionals rely on to keep all the information safe, secure and organized.


With Flux, you create an invoice in minutes, manage clients, send a receipt, and handle billing with clarity. The maker keeps invoicing fast and accurate so invoices look consistent and payments arrive on time.

Flux adapts to every workflow: open the maker, create an invoice, export a PDF, and organise invoices by client and project. Whether you prefer a simple invoice for quick jobs or a branded layout, the invoice maker and invoice generator keep every invoice clean and professional.

Create professional invoices in minutes
Open the maker, add client details, invoice numbers, dates, and itemized lines, then finish the invoice with quantities, unit prices, taxes, and discounts. Save reusable items and templates so the maker speeds up repeat work. The maker reduces re-typing and keeps each invoice aligned with your pricing.

Manage clients, invoices, and payments
Store client records—name, email, phone, and address—so repeat invoicing is effortless. See unpaid invoices, balance due, and overdue payments instantly. Mark any invoice as paid or unpaid, log partial payments, and maintain a searchable billing history per client. If you need to resend a receipt or locate a past invoice, Flux and the maker find it fast.

Customization and multi-currency
Brand each professional invoice with your logo, business details, and tax IDs. Add notes, purchase orders, and terms. The maker supports multiple currencies with correct formatting for international billing. For small jobs choose a simple invoice; when branding matters, the invoice maker formats a polished invoice that clients approve quickly.

Export, share, and print PDF invoices
Create invoices and receipts as PDF files ready to share by email, WhatsApp, or messaging apps. Print any invoice directly from your phone for on-site billing and paper records. Your archive keeps invoices, receipts, and payments organized for month-end and tax time, and the maker keeps everything accessible.

Key features
• No Ads
• Works 100% offline
• Fast and simple invoice maker
• Client management with saved contacts and history
• Payments tracking and clear status on every invoice
• Taxes, discounts, notes, and custom terms on any invoice
• Multi-currency billing with proper formatting
• Offline maker to create invoices anywhere
• One-tap PDF export, share, and print
• Download invoice PDFs or share them directly
• Flexible layouts for simple invoice and branded documents
• Helpful maker tools for contractors who bill by time, unit, or phase
• Save items to the item catalog to easily add to future receipts

Built for real workflows

• Freelancers use the maker after each milestone and track payments by client.
• Contractors finalize work and issue a receipt with the maker when the invoice is complete.
• Small businesses centralize billing, clients, and invoices so reconciliation is quick.
Power users can switch between the invoice maker, the generator, and the creator to customize any invoice without breaking invoicing flow.

Why choose Flux Invoice

• Simple maker flow to create invoices without confusion
• Clean PDF output clients trust for approvals and payments
• Centralized billing, bill summaries, clients, and receipts
• Designed for contractors, freelancers, and small businesses that send professional invoices every day
• Purpose-built invoicing tools that keep each invoice clear, accurate, and on brand