I built a simple tool for the awkward part of chasing unpaid invoices

I built Invoice Follow-up Checker after noticing how often freelancers struggle with the same awkward question: should I follow up on this unpaid invoice today, or wait?

The tool is intentionally simple. You enter how overdue the invoice is, how many reminders you've sent, and whether the client promised a payment date. It then suggests what to do next and drafts a professional message you can copy.

There’s no sign-up, no automatic sending, and no invoice or client data is stored.

This is an early experiment, so I’m especially interested in feedback from freelancers and solo service providers who regularly deal with late payments.