It’s the first tip jar that takes plastic!

DipJar is a new credit-card scanner shaped like a tip jar that makes it easy for patrons who pay with credit cards to show their appreciation for good service at coffee shops and bars.

Ryder Kessler, 26, said he dreamed up the gadget after watching baristas go tipless as a cashless crowd came through a cafe near his West Village home.

“Everyone was paying with credit or debit, so the tips had plummeted,” Kessler said. “Baristas take really great care of me, and I didn’t like that they were working just as hard and making less money.”

Kessler said there are two DipJars in Manhattan so far, at Oren’s Daily Roast on East 42nd Street and another at an Oren’s on West 112th Street and Broadway. He hopes to install another seven in Brooklyn over the next few months.

Reaction to the new gizmo has been mixed.

Some customers have complained that they don’t know if their tip has gone through because it’s too loud in the restaurant to hear the sound that it makes after a transaction.

Workers gripe that they are getting tipped less because customers may think it’s a scam and the company takes an undisclosed fee from each transaction.

“I get a check for, like, six dollars every two weeks,” said one barista.

“Either people aren’t using it or DipJar is stealing our kit. I think people just don’t notice it.”

Others love it.

“I felt bad at first because I didn’t have cash,” said Elana Treimanis, 24, a Web developer from Park Slope.

“At first, I couldn’t tip, but I saw it and I thought it was pretty cool. I hope that a lot of places put it in because I don’t carry cash and I want to tip people.”