VoidFast: Generate Voided Checks Online Instantly

I’m Marcin, a software developer and the maker of VoidFast.

Why I built it: employers, payroll providers and landlords still ask for a voided check to set up direct deposit. But many people, especially younger ones, have never owned a checkbook. Their options are to order checks and wait a week, go to a branch, or dig through the bank app.

What VoidFast does: you pick your bank (almost 5,000 US banks supported), enter your routing and account number, and get a print-ready voided check PDF in under a minute.

What makes it different:
✅ Vector PDF, so it stays sharp when printed or zoomed
✅ Correct MICR line format at the bottom of the check
✅ No checkbook, no bank visit

It’s meant for your own account details only, for direct deposit, ACH and account verification.

I’d love your feedback: what would make this more useful for you? And if you’ve ever had to scramble for a voided check, I’d love to hear that story too