Send invoices
Build and share professional invoices in seconds.
Customer invoicing for modern merchants
Create invoices. Collect payments.
CSTMR helps you bill customers, share payment links and QR codes, and track every invoice from draft to paid. Accept Lightning, Bitcoin, and Base payments in one place—built for freelancers, shops, and service businesses.
Get paid fast
Customers scan a QR code or pay via crypto—no awkward checkout flows.
Stay organized
Track status, revenue, and receipts from a single merchant dashboard.
Accept payments in
Lightning
Bitcoin
Base
USDC
ETH
QR Pay