Dia
by The Browser Company (Atlassian) · www.diabrowser.com ↗
AI browser from The Browser Company, acquired by Atlassian, with an assistant that chats about and works across open tabs.
ai-browser tab-chat knowledge-work
- Category
- AI Assistants
- Business model
- Freemium
- Availability
- Global
- Launched
- 2025-06
- Record updated
- 2026-07-30
- Founded
- 2019
- Headquarters
- US
- Canonical URL
- https://globalaiproductindex.com/products/dia/
Overview
Dia is an AI-first web browser from The Browser Company, the maker of Arc, with an assistant that chats about open tabs and helps write, plan, and shop using page context. Users can customize AI behaviors with skills and personalize how the assistant responds. Atlassian acquired The Browser Company in 2025; Dia is free with a paid subscription for heavy AI usage.
Key features
- Chat with one or many open tabs as context
- Inline writing help that adopts the user's tone
- Custom skills to personalize AI behaviors
- Built on Chromium with familiar browsing basics
Use cases
- Summarizing and comparing content across tabs
- Drafting emails and posts from browsed material
- Researching purchases with page-aware AI answers
Pricing
Dia is free to use, with a Pro subscription for unlimited AI chats and skills.
Frequently asked questions
What is Dia?
Dia is an AI-centric browser from The Browser Company whose assistant works with your open tabs to answer, write, and plan.
Who owns Dia?
The Browser Company, which Atlassian agreed to acquire in 2025, develops Dia.
Is Dia free?
Dia is free for everyday use; heavy AI usage requires the paid Pro plan.
Similar products
- Apple Intelligence — Apple's on-device personal intelligence system, built into iPhone, iPad, Mac, and other Apple products, with writing tools, image features, and a more capable Siri.
- Character.AI — Platform for chatting with user-created AI characters and personalities.
- ChatGLM — Zhipu AI's conversational assistant (Qingyan) built on the GLM family of models.
- ChatGPT — Conversational AI assistant from OpenAI, currently powered by the GPT-6 Astra model family, with chat, coding, agents, and multimodal features.
- ChatGPT Atlas — Web browser from OpenAI with ChatGPT built in for summarizing pages, answering questions, and completing tasks in an agent mode.
- Claude — AI assistant from Anthropic designed for helpful, harmless, and honest dialogue, with the Claude Fable and Mythos 5.1 model family for long-document reasoning and coding.
Sources
This record was last reviewed on 2026-07-30.
Machine-readable record: /api/products/dia.json · Spot an error? Suggest a correction