ZigLag

The product is a self-hosted invoicing application that creates, sends, and tracks invoices, generates PDFs, and records payments to manage billing without relying on a third-party service. It is for finance and operations roles in small businesses and for freelancers who handle their own billing. It is delivered as open-source software deployed on the user's own server via four commands and built on the stk framework, keeping all billing data under user control.

Key features

• Create invoices with line items
• Apply tax and discounts
• Client autocomplete
• Generate PDF invoices
• Share via public link
• Client view without account
• Payment recording and status tracking
• Monthly reports
• Self-hosted deployment