Create invoices in 60 seconds
Smart templates, auto-filled line totals and one-click PDF export. You'll never type a line total by hand again.
Free forever · No registration
Invoice your clients in seconds, not hours.
The fastest way to create polished, professional PDF invoices. Add your logo, taxes and signature — send, get paid, repeat. Zero sign-up, zero cost.
Trusted by 12,000+ freelancers
$48M+ invoiced every year
Works everywhere you already get paid
Stripe
PayPal
QuickBooks
Zapier
FreshBooks
Google Drive
Why flexinvoice
Everything you need to bill like a pro
No bloated accounting suites. Just the three things freelancers actually need to get paid faster.
100% free, no sign-up
No account, no trial, no credit card. Open the tool, build your invoice and download the PDF. That's the whole deal.
Your logo, your taxes, your signature
Make it unmistakably yours. Upload your logo, add tax rates and VAT, and drop in a digital signature.
What we offer
One platform, every billing need
From instant PDF invoices to calculators that make quoting painless.
PDF Invoice Generator
Build a branded, tax-ready PDF invoice in under a minute with logo, taxes and signature support.
Learn moreFreelance Rate Calculator
Turn your salary target into a confident hourly rate — or check what a quote is really worth.
Try it nowVAT & Tax Calculator
Add or strip VAT in one click and keep tax season painless, in any currency or rate.
Try it now
Loved by freelancers
Freelancers get paid faster with us
★★★★★
“I switched from a $30/month invoicing app to flexinvoice. My invoices look better, clients pay faster, and I haven't paid a cent.”
Maya ChenFreelance Brand Designer
★★★★★
“The rate calculator alone changed how I quote. I finally know my real hourly rate — and I doubled it without losing a single client.”
David OseiFreelance Web Developer
★★★★★
“Adding my logo, VAT and signature takes seconds. I send an invoice between meetings and it genuinely looks better than agency invoices.”
Sofia MarquezMarketing Consultant
About flexinvoice
Read our story
Built by freelancers, for freelancers
We spent years fighting bloated billing software before we built our own. flexinvoice is the tool we wished existed — fast, free and designed around how freelancers actually work.
12k+Active users
$48MInvoices created
99%Would recommend
Send your first invoice in the next 60 seconds.
Free forever. No registration. Your logo, your taxes, your signature — ready to download as a professional PDF.
Generate Free Invoice