Klirr vs Invoice Printer

Zero-maintenance invoicing that generates beautiful invoices automatically

A FOSS invoicing tool built in Rust that generates beautiful PDF invoices for services and expenses with zero maintenance. Define your clients, services, and rates — klirr handles the rest. Designed for freelancers and solo consultants who want professional invoices without subscribing to a billing platform.

Super simple PDF invoicing library for Ruby

A Ruby library for generating clean, professional PDF invoices with minimal code. No complex templates or configuration needed — define your invoice data and get a PDF. Supports custom fonts, logos, and localization. Perfect for solo developers who need invoicing in their Ruby or Rails app without pulling in a heavyweight billing platform.