Dia is a Chromium-based browser from The Browser Company (acquired by Atlassian for $610M in October 2025) that embeds AI throughout the browsing experience. The URL bar doubles as a command prompt: you can navigate, search, or query the AI in the same field. A sidebar AI assistant is always available to chat with your open tabs, summarize pages, help compose text in any input field, or trigger automations called Skills. Skills are Dia's approach to browser automation without code: you define reusable workflows in natural language, like 'when I open a LinkedIn profile, pull their recent posts and draft an outreach message.' Integrations added in March 2026 connect Dia to Slack, Notion, Google Calendar, Gmail, and Amplitude, allowing the browser AI to reference context from these services when generating reports or summaries. Dia currently runs on macOS 14+ (Apple Silicon only). A Windows waitlist is open but no confirmed timeline exists. The Browser Company's previous product, Arc, built a devoted following for its tab management innovations before they pivoted to Dia's AI-first approach. Free tier users get limited AI features; Dia Pro at $20/month removes usage caps.

What the community says

Dia attracts users who loved Arc and are willing to follow The Browser Company into more experimental territory. Early adopters on Product Hunt and X (Twitter) report the Skills feature is the most compelling reason to use it over Chrome with an AI extension. The Atlassian acquisition is viewed positively as providing financial stability for continued development. Key criticisms are the macOS-only limitation excluding most Windows users, the free tier AI caps feeling restrictive for serious use, and the AI still being too basic compared to what users expect in 2026. Some former Arc users feel the simplification removed features they relied on. The browser is still maturing and is best suited for early adopters rather than users who need reliability for professional workflows. Based on Product Hunt reviews, X discussions, and r/browsers.