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Dia

The Browser Company's AI-first browser for work, and the official successor to Arc.

Free plan + paidWeb browsers
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About Dia

Dia is a Chromium-based browser from The Browser Company, the team that made Arc, now owned by Atlassian. It keeps Arc's best-loved ideas, such as a sidebar with vertical tabs, profiles, pinned tabs, tab groups and split view, but adds AI throughout. You can ask questions about open tabs, have it draft or rewrite text, connect it to work tools, and set up reusable skills. The AI is optional, and the basic browser without AI features is free; paid plans unlock AI chat and heavier usage. Sync is end-to-end encrypted, and the company says browsing data is not sold or used to build ad profiles. It disables several Google account features of Chromium and runs on a fast update cycle. Because Arc is being retired, Dia offers one-click import of Arc data. It runs on macOS and Windows. It suits former Arc users and knowledge workers who want AI built into their everyday browser.

Best for: Former Arc users and knowledge workers who want AI built into their browser.

Pros and cons

What works

  • Imports Arc Spaces, tabs and passwords directly
  • Free browser tier with no AI features required
  • End-to-end encrypted sync

Why people leave

  • AI features need a paid plan
  • No Linux or mobile apps
  • Young product still changing quickly

Top Dia alternatives

See all 5
  1. 1Comet logo
    Comet

    AI browser with an assistant that can act on pages, on more platforms.

    66.5
  2. 2Zen Browser logo
    Zen Browser

    Arc-style layout without AI, open source and on Linux too.

    59.6
  3. 3Microsoft Edge logo
    Microsoft Edge

    Copilot in the sidebar with vertical tabs, free on every platform.

    57.2
  4. 4Vivaldi logo
    Vivaldi

    Arc-like tab organisation with a firm no-generative-AI stance.

    55.3
  5. 5ChatGPT Atlas logo
    ChatGPT Atlas

    Browser with ChatGPT built in, for people already paying for ChatGPT.

    52.1

Why people left Dia

In reviewers' own words, from reviews of the apps they moved to. These are their opinions, not ours.

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Dia: common questions

Is Dia free?

Dia has a free plan and paid plans. Free plan: Better Browser, free (checked on Dia's own site).

Is Dia open source?

No, Dia is not open source. Open-source alternatives include Zen Browser.

What platforms does Dia run on?

Dia is available for macOS and Windows.

What are the best alternatives to Dia?

The highest-ranked Dia alternatives right now are Comet, Zen Browser and Microsoft Edge. See the full ranked list for pricing, platforms and verified facts.

See all 5 Dia alternatives