Features

A concise list of what Invio does today.

Invoices

• Create, edit, delete, duplicate
• Draft → Sent/Published → Paid flow
• Public share link per invoice (no login for recipients)
• Overdue status derives automatically from due date (unless Paid)
• Per-line items with notes; discount as amount or percentage; tax as per‑line or invoice‑level
• Currency per invoice (default from Settings)

Rendering & Export

• HTML and PDF generation share the same templates
• PDF via browser‑grade rendering (Puppeteer/Chromium)
• XML exports: UBL 2.1 (PEPPOL BIS Billing 3.0) and Factur‑X/ZUGFeRD 2.2
• Optional embed XML inside the generated PDF as an attachment

Templates

• Built‑in: Professional Modern, Minimalist Clean
• Install additional templates from a remote manifest (YAML/JSON)
• Update installed templates using stored manifest URL; built‑ins protected from delete

Customers

• Create, view, edit, delete customers
• Country code, city, postal code fields supported

Settings

• Company details, currency, country code, tax ID, logo
• Branding (default template, highlight color)
• Internationalization (locale selection, number format, date format)
• Payments (methods, bank account, terms, default notes)
• Tax defaults (rate, prices include tax, rounding mode)
• Advanced invoice numbering pattern and toggle
• XML export defaults (profile, embed in PDF/HTML)
• Export & backup tooling

Internationalization (i18n)

• Multi-language support for UI and invoice rendering
• Separate frontend (admin UI) and backend (invoice PDF/HTML) translation catalogs
• Currently supported: English (en), Dutch (nl)
• Configurable number format (comma vs period decimal separator)
• Configurable date format patterns
• Easy to add new languages via JSON translation files (see Guides/Adding Translations)

Demo Mode

• Writable sandbox that auto‑resets from a pristine DB on a schedule

API (Hono) + Auth

• Admin API secured with JWT bearer auth (tokens issued via /api/v1/auth/login)
• Public routes for shared invoices and XML profiles
• HTTP responses include hardened security headers (CSP, COOP/CORP, nosniff, optional HSTS)

Admin UI (Fresh)

• Invoices list with filter/search, view, edit, publish, duplicate, download
• Customers list + CRUD
• Settings with sections (Company, Branding, Appearance, Templates, Payments, Tax, Numbering, XML, Export)
• Public invoice view with download buttons