Key Highlights:
- Dia is now open to all macOS users after launching in June with invite-only access. Windows availability remains unannounced.
- Developed by The Browser Company, which Atlassian acquired for $610 million last month, Dia is the AI-powered successor to the popular Arc browser.
- Highlight any text, timestamp, or chart and ask Dia questions directly in your tab—no copy-pasting or switching between apps required.
- Pre-built AI shortcuts like /cite for formatting citations, /flashcards for study materials, and /job-fit for resume analysis streamline common tasks.
The Browser Company has announced that Dia, its AI-enabled browser, is now available for all Mac users. The company started with a limited waitlist in June and has now opened Dia for unrestricted access on macOS, but the announcement regarding its launch on Windows is still pending.
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
The Browser Company’s Dia is an AI-powered successor to Arc, which was recently acquired by the software giant Atlassian for $610 million. It joins several tools from firms like Google, Opera, and Perplexity, making AI central to web browsing with features like chatbot assistants and AI-powered shortcuts.
Ways Dia Works for You
Dia organizes its capabilities around five core functions designed to embed AI assistance throughout your browsing experience. With writing, Dia becomes a writing partner in every text box and an in-line copy editor at the same time, thus getting rid of the messy copy-paste workflows between browsers and AI tools.
For learning, it becomes a tutor in every tab, helping users understand both sides of an argument in one place. For planning, Dia serves as a personal assistant that’s already up to speed, delivering information in the format you need without explaining context repeatedly.
In shopping, it acts as a retail concierge wherever you are browsing online, also helping you resist the urge to buy impulsively like a $400 sweater that looks similar to your current one. The fifth category stresses the importance of personalization across the professional realm, e.g., from adapting the content to the particular audience to comparing SaaS tools with the appropriate context.
How Dia Compares to AI-Enhanced Browsing
Dia enters a competitive space alongside Microsoft Edge’s upgraded Copilot features and Perplexity’s challenge to traditional search engines. What sets apart Dia is its in-line interaction model where users can select anything that they want like a paragraph, timestamp, or hard-to-understand chart and directly in the tab ask Dia for clarifications and answers.
The Skills system of the browser equipped with pre-built shortcuts for various tasks. The /cite command automatically generates citations in APA, MLA, and Chicago formats. The /job-fit skill evaluates resumes against job descriptions to provide instant compatibility feedback. The /budget-buddy skill recommends budget-friendly substitutes for the products you are viewing. The /outline skill facilitates essay outlines based on the assignment criteria.
Dia for Students: Built-in Academic Assistance
Dia is especially beneficial for students because it has a dedicated Student Pack which can be activated through academic email registration. Students pursuing Engineering can have Dia as an in-line tutor who answers questions and provides practice problems directly with course materials. Student reporters say that they can find research sources in minutes instead of hours by using only prompts and tabs.
The cite skill takes care of the normally long and tedious task of bibliography formatting by converting sources into their proper academic citations automatically. The /flashcards skill generates study materials comprising 8-12 Q&A flashcards from the content delivered in class. For essay writing, students can use /outline to structure assignments based on guidelines, while the in-line copy editor polishes writing without switching apps.
Current Availability
Dia is available now for everyone on Mac OS, which means the waitlist restrictions that have lasted months since its launch in June are finally over. However, The Browser Company has not yet made any statements regarding the availability of the AI-powered browser for Windows, leaving PC users waiting for access to the AI browser that promises to help users think deeper and move faster across all browsing activities.
