Invoiso

Free offline invoice software for Windows and Linux. Create professional PDF invoices, manage clients and products - no internet, no subscription, no account needed.

Invoiso is a free, open-source desktop invoicing app for small businesses, shops, and freelancers on Windows and Linux. All data stays on your device — no internet required, ever.

Features

One-click PDF invoice generation (Classic, Modern, Minimal templates)
Create invoices and quotations with colour-coded status tracking
Invoice cloning and bulk actions (batch PDF export, bulk CSV, bulk trash)
Customer and product/inventory management
Multi-currency support (INR, USD, EUR, GBP, JPY, AED, SGD, AUD, CAD...etc)
GST-ready with GSTIN and HSN code fields
UPI payment QR code embedded in every PDF
Data backup & restore — one click
No registration, no subscription, free forever (MIT licensed)

Project Samples

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License

MIT License

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Additional Project Details

Operating Systems

Linux, Windows

Intended Audience

End Users/Desktop, Other Audience

User Interface

Gnome, KDE, X Window System (X11)

Programming Language

Dart

Database Environment

SQLite

Related Categories

Dart ERP Software, Dart Accounting Software, Dart Invoice Software

Registered

2026-03-11

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