Invoices, expenses, tax estimates, PDF generation — a complete accounting toolkit for independent freelancers. No subscription. No cloud. Just PHP and a folder.
Built for people who work alone, bill clients, and hate spreadsheets.
Create PDF invoices with line items, VAT scenarios (domestic or reverse charge), your logo and legal text — saved automatically.
Edit any invoice after creation — update line items, dates, client, or amounts. The PDF is regenerated and re-saved automatically on every change.
Email invoices directly to clients from within the app. Configure your own SMTP once — then send with a single click from any invoice.
Generate PDFs in one or two languages side by side. 29 languages supported. Line items auto-translated via MyMemory API — no account needed.
Interface ships in English and German. Community translations possible — the language file is a single JSON you can extend or replace.
Log expenses with category, VAT rate, and business/private percentage split. Upload receipt files. Monthly and yearly totals auto-calculated.
Live income tax estimate based on configurable brackets per country. Net income, taxable amount, take-home — at a glance.
Track platform revenue (courses, Patreon, etc.) separately from billed work. Upload invoices per platform per month.
Log actual NI / SI payments month by month. Used in tax calculation for your real deduction — not an estimate.
Define monthly recurring costs and apply them with one click — no re-entering the same data every month.
Separate read-only login for your accountant. They see only paid income and expenses — with download links for PDFs and receipts.
One-click download: all paid invoice PDFs, expense receipts, and CSV summaries bundled into a ZIP — hand it straight to your accountant.
Ships with tax bracket presets for Austria, Germany, Greece, France, Netherlands, UK and more. Fully editable per year.
No composer, no npm, no Docker. Copy files, set a password, go.
Any PHP 8.1+ host. Apache, nginx, shared hosting — doesn't matter. No database needed.
Edit config.json with your company details, or use the settings pages inside the app.
Add your clients once. Create invoices with line items — a PDF is generated and saved automatically.
Log expenses, mark invoices paid, check your tax estimate any time. Export the year ZIP for your accountant.
Fully functional demo with fictional Harry Potter data — Hogwarts, the Ministry of Magic, Gringotts Bank and Weasleys' Wizard Wheezes as clients. Everything resets every hour.
Separate read-only login — sees only paid income and all expenses. Safe to hand to your bookkeeper.
Upload to any PHP 8.1+ server. No database, no composer, no Docker. Set a password and go.
⬇ Download fr33lncr.zip~29.8 MB · PHP 8.1+ · No dependencies
This is free and open-source software. You are free to use, modify, and distribute it as you wish.
It is provided “as is” and without any warranty. Use it entirely at your own risk.
fr33lncr is not a substitute for a professional tax advisor or accountant. Tax laws and regulations differ significantly between countries and change over time. The tax estimates shown are for orientation purposes only and may not be accurate or complete for your specific situation. Always consult a qualified tax professional for advice tailored to your circumstances.
Our small payback to the open source community.
Need this customised or set up for you? mi@slynx.li