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Comet alternatives: 5 apps ranked by verified data

Facts checked Oct 25, 2026AppBreakup editorialHow we rank

Common reasons people leave Comet: browsing content is sent to an AI service, and agent actions can make mistakes. We ranked 5 alternatives by how directly each one replaces Comet, then by reviews, real visits and how recently each app's facts were checked against its own website. Dia currently ranks first.

Quick comparison

#AppPricingOpen sourcePlatformsVerified factsScore
1Dia logoDiaFree plan + paidNomacOS, Windows4 of 462.6
2Microsoft Edge logoMicrosoft EdgeFreeNoWindows, macOS, Linux +24 of 459.6
3ChatGPT Atlas logoChatGPT AtlasFree plan + paidNomacOS0 of 056.0
4Brave logoBraveOpen sourceYesWindows, macOS, Linux +25 of 555.3
  1. Dia logo

    1. DiaTop pick

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

    Free plan + paidmacOS, Windows

    62.6

    score / 100

    Why switch from Comet

    AI-first browser for work from the Arc team, with a free non-AI tier.

    Pros

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

    Cons

    • AI features need a paid plan
    • No Linux or mobile apps
    • Young product still changing quickly
    Visit Dia Details and reviews
    How this score is calculated
    Editorial fit ×0.387
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Dia a good Comet alternative?

    Verified facts

    4 of 4 verified
    Free plan
    Better Browser, free
    Checked Oct 25, 2026diabrowser.com(opens source in a new tab)
    AI plan
    $10/month (Better Answers)
    Checked Oct 25, 2026diabrowser.com(opens source in a new tab)
    Platforms
    macOS and Windows
    Checked Oct 25, 2026diabrowser.com(opens source in a new tab)
    Engine
    Chromium
    Checked Oct 25, 2026diabrowser.com(opens source in a new tab)
  2. Microsoft Edge logo

    2. Microsoft Edge

    Best for: Windows users and Microsoft 365 organisations that want a managed Chromium browser

    FreeWindows, macOS, Linux, iOS, Android

    59.6

    score / 100

    Why switch from Comet

    Copilot built into a mainstream browser at no cost.

    Pros

    • Sleeping tabs and efficiency mode save memory and battery
    • Runs Chrome extensions
    • Strong enterprise management and Microsoft 365 integration

    Cons

    • Pushes Bing, shopping and Microsoft services
    • Telemetry on by default
    • Interface can feel cluttered with extra features
    Visit Microsoft Edge Details and reviews
    How this score is calculated
    Editorial fit ×0.377
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Microsoft Edge a good Comet alternative?

    Verified facts

    4 of 4 verified
    Memory saving
    Sleeping tabs
    Checked Oct 25, 2026microsoft.com(opens source in a new tab)
    AI assistant
    Copilot
    Checked Oct 25, 2026microsoft.com(opens source in a new tab)
    Desktop platforms
    Windows, Mac, Linux
    Checked Oct 25, 2026microsoft.com(opens source in a new tab)
    Mobile platforms
    Android, iPhone
    Checked Oct 25, 2026microsoft.com(opens source in a new tab)
  3. ChatGPT Atlas logo

    3. ChatGPT Atlas

    Best for: Heavy ChatGPT users who want it on every page they visit

    Free plan + paidmacOS

    56.0

    score / 100

    Why switch from Comet

    OpenAI's browser with ChatGPT and agent mode built in.

    Pros

    • ChatGPT reads and works with the current page
    • Agent mode can complete multi-step web tasks
    • Imports bookmarks and passwords from other browsers

    Cons

    • Browsing context goes to OpenAI when features are used
    • Agent mode tied to paid ChatGPT plans
    • Launched on macOS first
    Visit ChatGPT Atlas Details and reviews
    How this score is calculated
    Editorial fit ×0.3100
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1515
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is ChatGPT Atlas a good Comet alternative?

    Verified facts

    0 of 0 verified

    No sourced facts yet.

  4. Brave logo

    4. Brave

    Best for: People who want Chrome compatibility with ads and trackers blocked by default

    Open sourceWindows, macOS, Linux, iOS, Android

    55.3

    score / 100

    Why switch from Comet

    Free private AI assistant without sending everything to one AI vendor.

    Pros

    • Strong ad and tracker blocking without extensions
    • Runs Chrome extensions
    • Free AI assistant with no account needed

    Cons

    • Crypto wallet and rewards features feel out of place to many
    • Some Brave services are upsold in the interface
    • Still depends on Google's Chromium engine
    Visit Brave Details and reviews
    How this score is calculated
    Editorial fit ×0.363
    Reviews ×0.363
    Clicks (90 days) ×0.150
    Freshness ×0.1585
    Votes ×0.150

    0 counted reviews, 0 up and 0 down votes. Full formula

    Is Brave a good Comet alternative?

    Verified facts

    5 of 5 verified
    Ad blocking
    Built in (Shields)
    Checked Oct 25, 2026brave.com(opens source in a new tab)
    Engine
    Chromium
    Checked Oct 25, 2026brave.com(opens source in a new tab)
    Licence
    MPL-2.0
    Checked Oct 25, 2026github.com(opens source in a new tab)
    AI assistant
    Leo, free with a premium tier
    Checked Oct 25, 2026brave.com(opens source in a new tab)
    Desktop platforms
    Linux, macOS, Windows
    Checked Oct 25, 2026brave.com(opens source in a new tab)

The best Comet alternative for…

The highest-ranked app in this list for each need.

Dia logo

Best Comet alternative for most people

Dia

AI-first browser for work from the Arc team, with a free non-AI tier.

Microsoft Edge logo

Best Comet alternative for a free option

Microsoft Edge

Copilot built into a mainstream browser at no cost.

ChatGPT Atlas logo

Best Comet alternative for a free plan you can upgrade

ChatGPT Atlas

OpenAI's browser with ChatGPT and agent mode built in.

Brave logo

Best Comet alternative for open source

Brave

Free private AI assistant without sending everything to one AI vendor.

Opera Neon logo

Best Comet alternative for Mac

Opera Neon

Subscription agent browser with a choice of models.

Dia logo

Best Comet alternative for Windows

Dia

AI-first browser for work from the Arc team, with a free non-AI tier.

Microsoft Edge logo

Best Comet alternative for Linux

Microsoft Edge

Copilot built into a mainstream browser at no cost.

Microsoft Edge logo

Best Comet alternative for iPhone and Android

Microsoft Edge

Copilot built into a mainstream browser at no cost.

Comet alternatives: common questions

What is the best alternative to Comet?

Dia ranks first right now. AI-first browser for work from the Arc team, with a free non-AI tier. Microsoft Edge and Opera Neon follow it in our ranking.

Is there a free alternative to Comet?

Yes. Dia (free plan + paid), Microsoft Edge (free), ChatGPT Atlas (free plan + paid) and Brave (open source) have a free option. Check each app's verified facts for current plan limits.

Is there an open-source alternative to Comet?

Yes: Brave.

Which Comet alternatives work on Linux?

Microsoft Edge and Brave run on Linux.

Why do people switch from Comet?

The complaints we hear most: browsing content is sent to an AI service; agent actions can make mistakes; best features tied to paid Perplexity plans.

How is this list ranked?

Every app is scored with the same published formula: how directly it replaces Comet, reviews (weighted by verification), visits from AppBreakup, how recently its facts were checked against its own website, and reader votes.