Free, always
Invoicing shouldn't be a subscription line item. Our core tools are free today and will stay free — no bait-and-switch pricing.
The people behind flexinvoice
We started flexinvoice with one frustration: billing software built by accountants, not by the people who send invoices every day.
Our story
Billing software was broken. So we fixed it.
flexinvoice is an independent web toolkit focused on practical invoicing tasks: preparing a PDF invoice, estimating a freelance rate and checking VAT or sales-tax calculations.
The public tools work without registration and are designed for international use. Users remain responsible for checking the invoice, tax and record-keeping rules that apply in their country.
Our mission
Every freelancer deserves to get paid fast
Late invoices and confusing billing tools don't just cost you money — they cost you momentum. We exist to remove every barrier between finishing work and getting paid.
Fast by design
Every screen, button and calculation is built for speed. If an invoice takes more than a minute, we've failed.
Private by default
No accounts mean no data harvesting. Your invoices and financial details never touch our servers.
What makes us different
Not another accounting suite
No sign-up wall
Big invoicing platforms make you create an account, then sell you a trial, then upsell you. We make you an invoice — full stop.
Built for the solo pro
We optimize for one person, one laptop and 20 clients — not for enterprise approval workflows nobody asked for.
Beautiful, always
Your invoice is your brand. Ours are clean, modern and print-perfect — clients notice the difference.
Tax-savvy
Built-in VAT/tax calculators and clear tax lines keep you compliant in any currency — without an accountant on speed dial.
Ready to see the difference?
Create a branded PDF invoice with configurable tax fields, free and without creating an account.
Start Invoicing Now