Arc has 61 days left. The Browser Company plans to shut the browser down on Dec. 22, when the Mac and Windows apps stop working and every Arc account is deactivated, and it is pointing people to Dia, its newer AI browser.

Security is the reason the company gave. "Keeping a browser secure takes constant, dedicated work that is only increasing in the age of AI," it wrote on a farewell page at arc.net, adding that its engineering and security teams will focus on Dia from here. The Arc help center was blunter, saying "we can no longer keep Arc as safe and secure as it needs to be."

Abstract illustration of a violet arc of light dissolving into particles as it drifts toward a glowing teal ring on a dark purple background

Mobile goes first, then the desktop apps

Nobody can open a new Arc account as of Thursday. Existing members on Mac and Windows keep getting basic fixes until the cutoff. Arc Search on iOS and Android loses Browse for Me and its other AI features on Nov. 23, along with sign-in and tab sync. On Dec. 22 the Android app is pulled from Google Play and from the phones it's installed on, while the iPhone app stays around as a plain browser.

The firmest deadline sits a week before the shutdown. Dec. 15 is the last day to ask for a copy of the personal data tied to an Arc account, or to have it deleted. Local history and passwords aren't part of that copy, because the company says it has no access to them, so those survive only through an import into Dia or an export from Arc before the apps go dark.