The company responsible for Arc, an alternative web browser known for its unique user experience (UX) and integrated AI features, has officially announced that it will sunset the application on December 22, 2026. The decision marks a strategic pivot by the development team, who intend to shift their primary resources toward a new project named Dia. According to the publisher, while Arc was built with significant community support, the move is driven by a priority to deliver best-in-class security standards suited for the current age of artificial intelligence.

A farewell graphic for the Arc browser
The development team released a farewell graphic as they prepare to sunset the Arc browser in late 2026.arc.net

This image serves as the primary announcement graphic for the sunsetting of the Arc browser.

Dia is described as being built from the ground up specifically to meet modern security requirements. While the transition involves moving away from the original Arc software, the developers aim to make the switch seamless for existing users by providing automated import tools. These tools are designed to carry over core data including passwords, bookmarks, extensions, history, and specific structural elements like 'Spaces' (which will become 'Profiles' in the new app), Folders, and Tab Groups. The developer claims that Dia surpasses Arc in benchmarks regarding stability, speed, and security, while maintaining many of Arc’s signature features such as vertical tabs and split views.

The official outline logo for the Arc browser
The Arc browser logo, representing the product being transitioned to the new Dia project.arc.net

The logo identifies the brand being deprecated in favor of the new Dia browser.

For mobile users on iOS and Android, the deprecation follows a staggered timeline starting earlier than the desktop cutoff. As of late 2026, certain AI features like "Browse for Me" will be disabled on mobile devices before full deactivation occurs in December. Users have been advised to export their personal data or migrate it into Dia prior to the sunset date, after which Arc accounts will be deactivated and associated personal data deleted within 30 days. This shift highlights a broader trend among browser developers who must balance novel interface designs with the increasing technical demands of securing high-frequency browsing environments against evolving threats.