Karhoo — a ride-hailing challenger to Uber that had billed itself as a search engine for taxis and black cars — is shutting down.

The year-old startup had repeatedly blown launch deadlines after debuting in the UK last spring, telling The Post that it expected to launch in New York only weeks later.

Karhoo never got beyond the pilot stage in New York City, despite landing a three-year deal to put yellow cabs on its platform, as well as partnerships with black-car companies including Carmel, Dial 7, Elite and CTG.

Karhoo founder Daniel Ishag, who resigned as chief executive last week, had created a search engine that sorts taxis and black cars by proximity and price, while only taking a roughly 10 percent cut.

Meanwhile, the company had been heavily discounting fares in London in an ultimately unsuccessful attempt to gain customers.

The discounts helped Karhoo blow through a reported $250 million in funding from investors including private equity tycoon Jonathan Feuer and former Sony Music Entertainment CEO Nick Gatfield.

“We would like to thank our staff, our partners, the fleets around the world that shared our vision, and the hundreds of thousands of people who downloaded the app,” the company said in a statement.