#Multi-Language Support

Simple Invoices is available in 41+ languages, making it truly international. Every label, button, and message can appear in your customer's native language.

#How It Works

Languages are stored in the lang/ directory as PHP translation files. Each language provides translations for every text string in the application.

#Supported Languages

#Per-Invoice Language

You can set a different language for each Invoice Preference. This means:

• Your admin team can work in English
• Invoices sent to French customers appear in French
• Invoice labels, dates, and currency are localised automatically

Configure this under Settings → Invoice Preferences → Localization tab.

#Locale-Aware Formatting

Invoice language is paired with a locale setting that controls:

• Number formatting (e.g., 1,234.56 vs 1.234,56)
• Date formatting (e.g., DD/MM/YYYY vs MM/DD/YYYY)
• Currency position (e.g., $100 vs 100 €)

Uses PHP's ICU NumberFormatter for professional-grade locale formatting.