How to Use Dia in 2026: Step-by-Step Guide
The Browser Company's AI-native browser — chat with an assistant that has context on your open tabs and browsing history to summarize, compare, and act on what you're viewing.
Dia is a browser built by The Browser Company (creators of Arc) around an AI assistant that has direct context on the pages a user has open, rather than requiring copy-paste into a separate chat window.
Core Capabilities
Tab-Aware Chat The assistant can reference currently open tabs by name, summarizing or comparing content across them (e.g. "compare these three product pages") without manual context-passing.
Browsing History Context Can answer questions grounded in a user's own recent browsing history, useful for resurfacing something read earlier without re-searching.
Skills Supports reusable prompt "skills" for repeated tasks (e.g. drafting an email in a particular tone), similar to custom GPTs but scoped to the browser.
Positioning
Part of a wave of AI-native browsers (alongside Perplexity Comet, Opera Neon, ChatGPT Atlas) competing to make the browser itself the AI interface rather than a separate app.
Pricing
Free during beta, invite-based rollout.
What You'll Need
- A Dia account (free to create)
- A modern web browser or the Dia app
Getting Started
Create Your Account
Visit https://www.diabrowser.com and sign up for a free account. You'll need an email address to register.
Start Your First Conversation
Once logged in, you'll see the main chat interface. Type a question or task in the input box and press Enter. Dia supports tab-aware-chat, browsing-history-context, custom-skills — start with a simple text prompt to get familiar.
Pro Tips
- Be specific: The more context you provide, the better the response. Instead of "write an email," try "write a professional follow-up email to a client who hasn't responded in two weeks."
- Iterate: If you don't get what you need, ask for clarification or refinement: "Make it shorter" or "Use a more formal tone."
- Use examples: Show Dia what format you want by including an example in your prompt.
- Save useful conversations: Most platforms let you name and revisit conversations — organize by project or topic.
Common Use Cases
General Assistant
All-purpose AI assistants for everyday questions, tasks, and conversations.
Browse General Assistant chatbots →Productivity
AI tools for task management, scheduling, summarization, and workflow optimization.
Browse Productivity chatbots →Troubleshooting
- Responses seem generic or unhelpful
- Add more context to your prompt. Specify the audience, tone, length, and format you need. Try starting over with a clearer description of your goal.
- The tool isn't responding or is slow
- AI chatbots can experience high traffic. Refresh the page and try again. Check the service's status page if issues persist.
- Output is too long or too short
- Explicitly specify the length: "in 100 words," "as a brief summary," or "in detail with examples."
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Frequently Asked Questions
- Is Dia free to use?
- Yes, Dia is completely free to use.
- Do I need an account to use Dia?
- You may be able to try Dia without an account, though a free account unlocks more features and saves your history.
- What can I use Dia for?
- The Browser Company's AI-native browser — chat with an assistant that has context on your open tabs and browsing history to summarize, compare, and act on what you're viewing.
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