No more delays. Just fast, flexible invoicing.
120,000+
Used by freelancers with 50+ different countries
Send sleek, professional invoices your clients cant ignore — with same-day payment options built-in.
Why PayFlux?
A modern tool built for solo freelancers.
Stop using bloated software made for big companies. FastBill keeps it lean, clean, and fast.
Get notified instantly
No clutter, just what you need.
Get notified instantly
No clutter, just what you need.
Get notified instantly
No clutter, just what you need.
Get notified instantly
No clutter, just what you need.
Web Application
Designed for speed and simplicity.
No bloated dashboards. No confusing steps. Just a clean, focused experience — built so you (and your clients) can move fast without friction.
Testimony
Clients actually thank me for how easy it is to pay now. Game changer.
Jordan, Web Developer
Clients actually thank me for how easy it is to pay now. Game changer.
Jordan, Web Developer
Clients actually thank me for how easy it is to pay now. Game changer.
Jordan, Web Developer
Clients actually thank me for how easy it is to pay now. Game changer.
Jordan, Web Developer
Clients actually thank me for how easy it is to pay now. Game changer.
Jordan, Web Developer
Loved by freelancers, creators, and consultants worldwide!
FastBill helps thousands get paid faster, with less hassle. Built for real people who value time, trust, and simplicity.