efatura gem uses mechanize in order to login from the backend to efatura website to retrieve invoice information

Auto-generate a pdf invoice utilizing your git commit activity. Time is automatically accounted for utilizing TimeSink and is proportionately applied towards each line item entry.

A gem that lets you control the flow of products, and orders through invoices

Ruby SDK for the e-invoice.be Peppol API

Basic Blinksale invoice fetcher.

A rails engine for working with subscriptions, selling products, and handling payments. Includes products, subscriptions, invoices, coupons, charges, etc.

This tool shows invocies issuers, and summarizes which invoices are downloaded

db_facet extracts and inserts subsets of a database content, like a full user account with all its photos, invoices and history..

Html based, ie client side, printing for orders. Different styles are invoice, packing slip and receipt (for receipt printer in shop). Easy to configure and adapt

Generate invoices for contract work and dividend certificates

This is a Ruby API client for Mavenlink. Mavenlink's project collaboration suite allows you to manage your business relationships, share files, and track project activity online from anywhere in the world. Within a project workspace in Mavenlink, you can agree on budget & schedule, track time, s...

Downloads utility invoices from common spanish firms such as Endesa or Vodafone.

Generates invoices using command line based on yaml file

Invoice generators, etc.

A ruby gem to generate XML for invoice exchange between dental lab and dentist practices following the standard from VDDS, KZBV and VDZI.

Reads hours from a Google Spreadsheet and generates a PDF invoice.

CFDI Mexico, To generate XML files from invoices of Mexico, Comprobantes Fiscales Digitales por Internet

Ruby gem for communicating with the kojn.nl API. Allows you to create and managed invoices.