The complaint, filed in federal court in San Jose, Calif., argues that Google learned the “most intimate and potentially embarrassing things” about users’ searches by gathering data through Google Analytics, Google Ad Manager and other apps and web plug-ins.

Google “cannot continue to engage in the covert and unauthorized data collection from virtually every American with a computer or phone,” the complaint said.

Google has said that it will defend itself against the claims, with a spokesperson saying that the browser “clearly states” that websites “might be able to collect information about your browsing activity” when a new Incognito tab is opened.

The complaint said the proposed class likely includes “millions” of Google users who since June 1, 2016 browsed the internet in “incognito” mode.

It seeks at least $5,000 of damages per user for violations of federal wiretapping and California privacy laws.

Google in 2017 playfully teased that it knew what its users are doing in private browsing, swapping a smiley face for a wink face in the browsers of users who spent a long time in an Incognito window.

Shares of Google were flat in pre-market trading. The search giant’s stock is up 5.4 percent year-to-date.

With Post wires.