Arc browser will officially cease operations on December 22, The Browser Company announced. The decision shifts the team's engineering and security resources entirely to Dia, its next-generation AI-powered browser built from scratch to meet current security standards in the AI era. To ease user migration, Arc has streamlined the transition process: passwords, bookmarks, extensions, and history can be seamlessly imported into Dia. Key features including Spaces, Folders, and Tab Groups are retained and fully migrated. The company states that Dia surpasses Arc's benchmarks in stability, speed, and security, with every browser feature available free of charge.