Stop renting your invoicing software.

Invora is a clean, modern invoicing & billing app you host yourself — no monthly fee, no per-invoice cut, and your client and revenue data stays in your own database. Create professional invoices and estimates, record payments, and always know exactly what you're owed from one clear dashboard. Installs in about two minutes on any PHP shared host.

MONEY MATH YOU CAN TRUST
Most cheap invoice scripts get the numbers subtly wrong. Invora's math ships with a test suite you can run yourself, proven on SQLite, MariaDB and MySQL 8: integer-cents arithmetic (no floating-point drift), per-line tax rates with invoice-level discounts reducing tax proportionally, and automatic paid / partial / overdue statuses derived from recorded payments and the due date in your timezone.

WHY SELF-HOSTED
Hosted invoicing tools charge $15-30/month forever and keep your data. Invora is bought once and runs on hosting you already pay for. Backup = one database.

TECH
Plain PHP 8 + MySQL (SQLite supported for instant local trials). No framework, no Composer, no build step, no external APIs. 2-minute web installer. Docker image included.

WHAT'S INCLUDED
Full source code, web installer, demo data, Dockerfile, money-math test suite, written install & deploy guide (README + documentation.html in the download), 6 months support.

LIVE DEMO
https://invora.ownware.io/logi... — [email protected] / admin123 (demo resets hourly)

- Live line-item editor — totals update as you type; pull from your saved item catalog
- Estimates / quotes — convert to an invoice in one click
- Payments — record full or partial; balances and statuses update instantly
- Automatic statuses — paid / partial / overdue derived from payments + due date (your timezone)
- Correct money math — integer cents, per-line tax, proportional invoice-level discounts; ships with a runnable test suite
- Branded, print-perfect PDF — your logo, accent colour, details; clients save as PDF
- Read-only public client link — clients view their invoice with no login
- Dashboard — invoiced / collected / outstanding / overdue + 6-month collected chart
- Reusable clients and item catalog with default tax rates
- Multi-currency with per-document snapshots; fractional quantities (bill 1.5 hours)
- Auto-numbering with your prefix; default notes & terms; one-click demo data
- 2-minute web installer; Dockerfile included

- PHP 8.0 or newer, with the PDO extension (standard on virtually all hosts)
- MySQL / MariaDB database — or SQLite (bundled with PHP, zero setup)
- Any Apache or LiteSpeed shared host with mod_rewrite, or Nginx / VPS
- No Composer, no Node, no build step, no external services required

1. Upload the contents of the app/ folder to your web root (e.g. public_html).
2. Open your domain in a browser — the web installer starts automatically.
3. Enter your database details (MySQL, or choose SQLite for zero setup), your business name and admin login. Click Install.
4. Sign in at /login and add your branding under Settings (logo, accent colour, invoice prefix, currency).
5. Optional: load one-click demo data from Settings to explore, then Reset all data when going live.
Manual alternative: copy config.sample.php to config.php and edit credentials. Local trial: php -S localhost:8000 router.php. Full details in README.md / documentation.html inside the download.