Invio is an open-source Python desktop application for creating, managing, and sending invoices through multiple providers with multi-account support, background task processing, dynamic tags, and enterprise-grade workflow automation.
desktop-app python windows api productivity open-source workflow automation cross-platform sqlite invoice billing business-tools background-worker multi-account pyside6 dynamic-tags invoice-automation invoice-sender bulk-invoice
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Updated
Aug 13, 2026 - Python