Introduction

InvoiceFlash

InvoiceFlash is a self-hosted, open source ERP for small and medium businesses. It takes a company from the first quote to the accounting entry in a single application. You install it on your own server, or on your Windows PC, and your data stays with you.

What it covers

• Sales: customers, quotes, orders, delivery notes, invoices, receipts and remittances.
• Purchases: suppliers, purchase orders, receptions and purchase invoices.
• Accounting: automatic journal entries, tax models and export to Sage 50.
• CRM: leads, contacts, calendar, mailings and sales follow-up.
• Production: bills of materials, manufacturing orders and a Kanban board.
• Presence control: clock-in and absences.
• Electronic invoicing: Facturae (Veri*Factu is an optional module).
• AI: RAG search over your own documents, a REST API and an MCP server.
• Modules: add or customize features without touching the core.

This documentation

This guide helps you get InvoiceFlash up and running and keep it that way: the technical requirements of the server, step-by-step installation (on a server or on your PC), scheduled tasks, and querying your documents with AI.

Where to start

• How to install InvoiceFlash

  Step-by-step installation on your server with the automatic installer.

• System requirements

  Web server, PHP, MariaDB and the required modules.

• Install on Windows with XAMPP

  The quickest way to try InvoiceFlash on your PC.

• Scheduled tasks (cron)

  Run InvoiceFlash's automatic processes every hour.

• RAG: ask your documents with AI

  Answers based on your own documents.

Prefer to see it working?

Try the demo or visit the InvoiceFlash website.