The sidebar browser with an agent inside.

Real Chromium with Spaces, Peek and Split View. Tell the agent what you want done, and it reads, clicks and types in your tabs. It asks before anything that matters.

Download for Mac Watch it work

Free · Apple silicon and Intel · Imports from Arc and Chrome

Anus Browser: the sidebar with favourites, pinned tabs and Today beside a GitHub page The same window in dark mode, on an MDN page The command bar suggesting MDN for the query mdn grid An MDN page open in Peek over the current tab Hacker News and web.dev side by side in Split View

Real screenshots. The agent cursor is showing you around.

Works with
Google sign-inChrome Web StoreDevToolsGitHubFigmaLinearNotionGoogle DocsSlackVercel

The agent panel · ⌥⌘A

Tell it the outcome.
Watch it click.

It works in your real, signed-in tabs: reads the page, scrolls, clicks, types and switches tabs, and every step shows up in the panel. Stop or take over whenever you like.

google.com/travel/flights
A
⇄ Round trip ▾1 passenger ▾Economy ▾
Zurich
⇄
Search
All filtersStops ▾Airlines ▾Bags ▾Price ▾Times ▾

Top departing flights

Ranked based on price and convenience · Prices include required taxes + fees for 1 adult.

LX
7:05 AM – 9:10 AMSWISS
3 hr 5 minZRH–LIS
Nonstop
€142one way
TP
10:40 AM – 12:45 PMTAP Air Portugal
3 hr 5 minZRH–LIS
Nonstop
€84one way
U2
2:15 PM – 4:25 PMeasyJet
3 hr 10 minZRH–LIS
Nonstop
€97one way
IB
6:20 AM – 11:45 AMIberia
6 hr 25 minZRH–LIS
1 stop1 hr 30 min MAD
€79one way

A replay of a run, slowed down: running the search waited for an Allow. Google Flights is shown as an example site. Anus Browser isn’t affiliated with Google, and the fares are made up.

Everything Arc taught us, rebuilt

Your whole day.
One sidebar.

    Command bar

    ⌘T searches open tabs, the archive and history. gh, npm, mdn and caniuse shortcuts; paste a JWT or a timestamp to decode it.

    Spaces

    A colour and an emoji per context, with separate cookies when you need to be two people. ⌃1–⌃9.

    Open

    Peek

    Links from pinned tabs float in a preview. Esc closes it, Open keeps it.

    Split View

    Two pages side by side. ⌃⇧= to split, ⌃⇧- to leave.

    Dana Let's ship the sidebar fix Friday.

    Sam I'll take the release notes.

    Sam writes the release notes

    Meeting recorder & assistant

    Record and transcribe a call, on this Mac or with OpenAI. Get summaries, decisions and actions. Invite an AI assistant to join as a visible participant when you want a hand.

    Watch the meeting demos
    ⏰
    Weekdays at 08:30Trigger
    ✍️
    Summarise new issues on my reposInstructions
    Done · 6 issues, 2 urgentOpens as a chat

    Routines and companions

    Give a companion a role, memory and a schedule. Every run opens a chat record, and anything that sends or changes something still waits for you.

    Visual artifacts

    Ask for a chart, table or one-pager and keep editing it in the chat.

    Algorithm DietExample week
    Design & making
    Science & technology
    A little wandering
    What have I been learning?↵

    Algorithm Diet

    See where your attention goes. Explore your browsing topics and ask what you’ve been learning, with on-device analysis.

    Explore Algorithm Diet

    example.com

    you@example.com
    ••••••••••••

    Password manager

    Save and fill logins with Chromium’s built-in manager. Import saved Arc passwords with macOS Keychain authorization.

    A little help, in the room

    Be in the conversation.
    We’ll keep the thread.

    Invite your assistant when you want another pair of ears. Record when you’re ready. Leave with the decisions, not a page of half-finished notes.

    01 / The meeting assistant
    Friday catch-up3 people
    Your assistant is ready when you are.
    DDana
    SSam
    YYou
    A seat for
    your assistant.
    Anus Browser assistant
    Your assistantVisible to everyone in the callInvite to call
    I’ll keep track of the decisions and action items.

    You choose when it joins.

    An assistant at the table.

    It joins as a visible participant, follows the conversation and helps with the meeting. Invite it when you need a hand.

    02 / The meeting recorder
    Meeting notes
    Ready to record

    Friday catch-up

    Tab audio + microphone · sample meeting

    DanaLet’s give the homepage a little more room.

    SamI’ll share a first design. Feedback by Friday?

    DanaPerfect. Let’s keep the product front and centre.

    A clear record, as the conversation happens.
    You decide when recording starts.Start recording

    From conversation to something you can use.

    Good notes. Full attention.

    Record a call, follow the live transcript and get a summary with decisions and action items. Choose a local or cloud transcription engine.

    Algorithm Diet · macOS + iPhone

    You are what you browse.
    Give your curiosity a little more room.

    Look beyond screen time. See what you read, watch and learn, with a nutrition label for your corner of the internet.

    Algorithm Diet
    YOUR BROWSING, AT A GLANCE

    Superfood

    8h 30m · example week

    A little more learning.

    Time by category

    Example week
    Learning2h 50m
    Building & code2h 30m
    Long reads & culture1h 50m
    Social feeds1h 20m

    Nutrition Facts

    For your mind. Points out of 10.

    ProteinLearning
    7.0
    FiberDepth & focus
    6.0
    VitaminsCulture & people
    4.0
    SugarQuick hits
    2.0
    SaltOutrage & anxiety
    1.0
    FatEndless feeds
    1.5

    A food-label metaphor for your browsing habits.

    Ask your history

    Learning and building took the largest share of this sample week. Long reads made a little room for deeper thinking, too.

    Interactive illustration · sample data, inspired by the native apps.On-device analysis. Your browsing stays yours.

    A new browser. Your familiar setup.

    Bring your Arc.
    Keep your bearings.

    Import during onboarding or later in Settings. Spaces, nested folders, favourites, pinned tabs and open tabs land in their places. History and saved passwords come too.

    • Your structure, preserved. Space names and colours, folders and pinned sites map into the new sidebar.
    • Move at your pace. Import again without duplicating your tabs or replacing existing logins.
    Arc
    Spaces & nested folders
    Favourites & pinned tabs
    Open tabs & history
    Saved passwords
    Right at home.

    Anus Browser for iPhone In development

    A little less chrome.
    A lot more web.

    The same idea of a calmer browser, built for your thumb. Native on iPhone, with floating controls that give the page room to breathe.

    • Tabs, in Spaces. Colour, context and tab cards for the different parts of your day.
    • Algorithm Diet. Explore your browsing topics with on-device analysis.
    • Your own corner of the web. Private browsing, site blocking and a look you can make your own.

    Desktop agent control and meeting features aren’t available on iPhone yet.

    Explore social apps & extensions

    Algorithm Diet

    Superfood8h 30mMostly learning
    Your consumptionTime browsing 8h 30m

    Nutrition Facts

    Time-weighted points · sample data

    Proteinlearning7.0
    Fiberdepth & focus6.0
    Vitaminsculture & people4.0
    Sugarquick hits2.0
    Saltoutrage & anxiety1.0
    Fatendless feeds1.5
    Wikipedia in the native iPhone app with floating glass tab controls

    Native browsing screenshot and app-inspired Algorithm Diet illustration with sample data.

    Interactive concept with sample content. Social web apps, these feed controls and iPhone extensions are planned; this is a preview of the direction.

    Made for people who build the web

    Your dev servers
    live in the sidebar.

    • Running locally. Anything listening on this Mac shows up, named after its project folder.
    • Environments. ⌥⌘E jumps the same path between local, staging and prod.
    • Console badge. Local tabs count their errors; one click opens the Console.
    • Boosts. Per-site CSS and TypeScript, edited in the browser, applied live.
    • MCP for coding agents. Codex, Claude Code, Cursor and other agents read tabs, logs and screenshots, then navigate, click and type through a local, token-gated server.

    Running locally

    my-app :51733
    docs-site :3000
    api :8787
    LOCALlocalhost:5173/pricing
    claude › read the console of my-app
    → anus.list_tabs · anus.console_logs(tab 2)
    TypeError: price is undefined · Pricing.tsx:42
    ✓ Fixed. Reloaded the tab, 0 errors.

    Keyboard first

    ⌘TNew tab
    ⌃1Space
    ⌥⌘AAgent
    ⌥⌘NAnusMini
    ⌥⌘MResponsive
    ⌥⌘BBoost

    Not Electron. Not a wrapper.

    A real Chromium fork,
    top to bottom.

    Google sign-in works, extensions install from the Chrome Web Store, and DevTools is DevTools. On top sits a shell written from scratch, and a small native helper that keeps your AI and your data on your Mac.

    Asks before it acts

    It does the busywork. You keep the keys.

    Submits a formSends a messageBuys somethingSigns inChanges an accountUploads a fileDownloads a fileTypes a secret

    Each of these stops and waits for an Allow in the panel. Stop and Take over end a run instantly.

    Pricing

    Free browser.
    Your AI, your bill.

    We don't sit between you and the model. The agent runs on what you already pay for, or on your Mac for nothing.

    Browser

    $0 forever

    Everything that makes it a browser.

    Download
    • Sidebar, Spaces, Peek, Split View
    • Command bar and developer shortcuts
    • Boosts, console badge, environments
    • Imports from Arc and Chrome

    Agent on your ChatGPT plan Easiest

    $0 extra

    Sign in with ChatGPT in Settings › AI.

    Download
    • Agent panel in every tab
    • Companions with memory
    • Routines and visual artifacts
    • Uses your plan's own limits

    Your key, or this Mac

    Usage or $0 local

    An OpenAI API key, billed by OpenAI, or a local model.

    Download
    • Key stored in the macOS Keychain
    • Meeting notes transcribed on device
    • Local voice mode with Ollama
    • Nothing leaves your Mac when local

    FAQ

    Questions,
    answered.

    Is it really free?

    Yes. The browser is free. The AI features use your own ChatGPT plan, an OpenAI API key, or a model running on your Mac.

    Can I bring my Arc or Chrome setup?

    Yes. During onboarding or in Settings › Import, bring Arc Spaces, colours, nested folders, favourites, pinned and open tabs, history and saved passwords. Arc password import needs macOS Keychain authorization. Chrome import is available too.

    Do Chrome extensions work?

    On macOS, yes: extensions install straight from the Chrome Web Store. iPhone extension support is planned, along with focused social web apps and controls for Shorts, Reels and recommended feeds.

    What can the agent do without asking?

    Read, scroll, click, type into ordinary fields, navigate and switch tabs. Submitting, sending, buying, signing in, account changes, uploads, downloads and secrets all wait for your approval.

    Which Macs are supported?

    Apple silicon and Intel Macs. The app keeps itself up to date.

    Is there an iPhone version?

    A native iPhone version is in development, with Spaces, tab cards, private browsing and on-device Algorithm Diet. The images above are from the app. Desktop agent control and meeting features aren’t available on iPhone yet.

    Can I walk through onboarding again?

    Yes. Open Settings › General › Replay onboarding. It keeps your existing tabs, Spaces, passwords and other profile data.

    Is there a Windows version?

    Not yet. macOS first.

    ⌘T
    Agent

    Browse less.
    Get more done.

    Open the dmg, drag it to Applications, and import your tabs. That's the setup.

    Download for Mac Intel Mac