Couple in need pulls off wedding thanks to...Reddit?

Reddit pulled through for this couple just trying to get married.

Dan and Gill McCauley decided to get married in New York City Hall. The couple, originally from the UK, told NBC New York they decided on a small ceremony "just for us."

After booking a date at the New York City Marriage Bureau, they realized they were missing a witness. Under New York law, a marriage is only valid if there's a witness present while exchanging vows.

An ocean away from their hometown in Liverpool, the McCauleys didn't know anyone in the city who could be a witness, so they turned to Reddit. Dan posted in a subreddit for New York City locals, but didn't expect anyone to actually step up.

They were overwhelmed with responses. Some offered advice.

And some were skeptical.

A Redditor named Michael Robinson offered to not only be their witness, but also be their photographer -- for free.

“He just seemed like a really, really nice guy," Dan told NBC New York.

They met at the courthouse Tuesday for the wedding. Michael, who's also from the UK, is pursuing a career as a professional photographer.

After the ceremony, Dan, Gill, and Mike headed out for a drink together. Mike told NBC that "when used for good, Reddit can be really good."