Mac users now have a fresh AI-powered way to browse the web, thanks to the official public release of Dia from The Browser Company.
Quick Summary – TLDR:
- Dia is now available for all Mac users, requiring macOS 14 and Apple silicon (M1 or later)
- The browser centers around AI-powered chat and multitasking with tools like summarization and comparison between tabs
- Free and Pro tiers available, with most smart features accessible at no cost
- The Browser Company pivoted from Arc to Dia, after being acquired by Atlassian for $610 million
What Happened?
Dia, the latest AI-first web browser from The Browser Company, is now open to the public for download on macOS. Previously in private beta, the app brings an intelligent, chat-powered browsing experience focused on productivity, personalization, and student-friendly features.
The company, known for its earlier Arc browser, shifted all its resources toward building Dia earlier this year, citing a clearer, more cohesive vision for how users interact with the web using artificial intelligence.
Less invites, more ships.
— Dia (@diabrowser) October 8, 2025
Dia is now open to everyone on macOS.
Download now: 🔗 in bio pic.twitter.com/1XllRndJGI
A Chat-First Browser That Understands You
At its core, Dia is a tabbed browser with built-in AI chat in every tab, letting users interact with web content in real time. You can ask it to summarize articles, compare multiple open websites, or even edit text directly within a page using its inline copy editor.
Whether you need help drafting an email, checking facts, or browsing smarter, Dia is designed to be your intelligent web companion. In one example, users can even ask the AI to talk them out of buying an expensive $400 sweater. It’s practical, a bit cheeky, and focused on making browsing more interactive.
Smart Skills and Custom Memory
Dia introduces a feature called Skills, which functions like AI-powered shortcuts for common tasks such as planning, coding, outlining, and even generating study materials. Users can build their own Skills or choose from a curated list, making the browser deeply customizable.
The browser also includes a Memory system that learns from user behavior over time, helping Dia become more accurate in understanding your needs and preferences. With features like tab mentions, file attachments in chats, and deep personalization, Dia stands out in a growing field of AI browsers.
Designed for Students and Knowledge Workers
The Browser Company built Dia with students in mind. Tools let users turn class materials like lecture notes and readings into quizzes, flashcards, and study guides. It’s aimed at making study sessions smarter and more efficient.
Meanwhile, professionals can rely on Dia to handle multitasking across tabs and reduce workflow friction. Features like summarizing across tabs and planning documents directly from the browser align well with research, content creation, and day-to-day productivity tasks.
Free for Most, Paid for Power Users
Dia is available in two tiers:
- Free Tier: Includes all the core features like chat, Skills, Memory, tab mentions, and attachments.
- Pro Tier: Costs $20 per month and unlocks unlimited chat usage within the terms of service; a 14-day free trial is available.
Users can download Dia directly from the company’s website. No invite is needed.
Shift from Arc to Dia, Boosted by Atlassian Deal
Earlier this year, The Browser Company decided to sunset its previous Arc browser and focus entirely on Dia. CEO Josh Miller explained that Arc was “too different” and lacked the cohesion needed for wide adoption, despite its passionate fanbase.
The company was acquired by Atlassian for $610 million, with the deal expected to close by the end of 2025. Under the agreement, The Browser Company will continue to operate independently, with Atlassian’s backing helping fuel Dia’s growth and innovation. While Dia is currently Mac-only, there’s a good chance a Windows version could arrive in the future, just as Arc eventually did.
SQ Magazine’s Takeaway
Honestly, I think Dia might be the first AI browser that doesn’t just bolt on chat features but builds the entire experience around them. It feels like a genuinely new way to use the web. Whether you’re a student trying to make study notes faster or just someone who wants an AI assistant baked into every tab, this is worth a try. The free tier is generous too. Personally, I’ll be keeping an eye on how well it scales across different types of users.
