Isolated workspaces
Every app gets its own cookie container, so you can sign into three Gmails at once and none of them know the others exist.
See workspaces →
One container per app
Every alert, one bell
Boosted with your CSS
SpaceDeck
Workspace: Personal
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Live demo · click the rail to switch apps
macOS · app-aggregation browser
Mission control for
Mission control for
every app you live in.
Gmail, Claude, Notion, Slack, Figma. SpaceDeck gathers your web apps into orbit around one deck. Each runs in its own isolated space, one keystroke away. Not thirty lost tabs. A flight deck.
Apple Silicon & Intel · Signed and notarized · v2.2.1
IsolationOne container / app
Recall⌘⇧Space
SyncYour iCloud / Drive
Accounts requiredZero
The browser was built for reading pages. You stopped doing that years ago. You live in your apps. SpaceDeck is the browser that finally treats them that way.
The core three
Three ideas the browser never got right.
Keep your apps separate, bend them to fit, and carry them between Macs without an account in the middle.
Boosts
Inject your own CSS and JavaScript per app. Hide the noise, restyle the chrome, automate the tedious. It re-applies on every load.
See power tools →Sync across your Macs
Workspaces, bookmarks and settings sync over your own iCloud or Google Drive. No SpaceDeck account, no server in the middle.
See all features →
Bring your own apps
Works with everything
Works with everything
that has a URL.
There is no plugin catalog to wait on and no integration to request. If it runs on the web, it runs in SpaceDeck, inside its own contained space.
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+ any URL you live in
The flight deck
Small controls that add up to a workday.
A dozen refinements wired straight into the browser instead of bolted on as extensions.
SYS · ROUTING
Smart link routing
A link that belongs to Slack opens in Slack's space. In the right session, never the wrong login.
SYS · SIGNAL
One notification center
Every app's alerts in a single bell, with a Do Not Disturb schedule you set once.
SYS · TRANSFER
Download manager
Every download tracked in one panel. Pause, resume, reveal in Finder.
⌘⇧SPACE
Summon from anywhere
SpaceDeck lives in the menu bar and answers a global hotkey. Front and center in one keystroke.
SYS · PER-APP
Zoom & mute memory
Set Gmail to 110%, mute Messenger for good. Remembered per app, every load.
⌘E
Claude, docked
Run the official Claude extension in a side panel and read the page you are on.
Who it's for
Built for the way you actually work.
The multi-account juggler
Three clients, three Gmails, two Slacks. Every account stays signed in inside its own space, and links always open in the right one. No more logging out to log in.
Isolated workspaces →The keyboard-first builder
A real terminal beside the tabs, Boosts to restyle any app with your own CSS and JS, and a global hotkey that summons the whole deck from anywhere.
Power tools →The notification-drowned
Ten apps shouting from ten corners becomes one bell with one unread count, a Do Not Disturb schedule, and a mute switch for the apps that never learn.
Focus features →
The honest comparison
Why not just more tabs?
You could keep juggling profiles and pinned tabs. Here is what changes when the browser is built for apps instead.
| Capability | Browser tabs | Other app browsers | SpaceDeck |
|---|---|---|---|
| Same app, many accounts, all signed in | Profile juggling | Yes | Yes |
| Every notification in one place | No | Yes | Yes, with DND schedule |
| Restyle apps with your own CSS & JS | Extensions only | Often a paid tier | Boosts, built in |
| A real terminal beside your tabs | No | No | Built in |
| Sync between machines | Via browser account | Via vendor account | Your own iCloud / Drive |
| Works without signing up | Yes | Account required | No account, ever |
Bring your whole web
into one orbit.
A native macOS app. Your apps, your accounts, your machine. No cloud account to sign up for.
Spaces & isolation
Every app in its own universe.
A workspace is a set of apps that share nothing. Every app runs in its own cookie container, so accounts never bleed into each other and each space stays exactly how you left it.
Containers
Sign into everything, at the same time.
Each app you add gets a private session, cookies, storage and login kept entirely to itself. Three Gmails, two Slacks, a work Notion and a personal one can all stay logged in simultaneously, with zero incognito windows or browser profiles to juggle.
Switching spaces never logs you out of anything. The session is always waiting where you left it.
MIsolated
MIsolated
#Isolated
Organize
Group apps into spaces you actually think in.
Sort your apps into workspaces like Personal and Work. Each space carries its own color, icon, default search engine, background, bookmarks and notes, so switching context feels like walking into a different room.
One click flips the whole deck. The right apps, the right accounts, the right mood.
PActive
WSwitch
SSwitch
Everyday polish
Details that keep a space tidy.
SYS · ROUTING
Links land where they belong
Open a Figma link from Slack and it lands in your Figma space, in the account already signed in. External schemes hand off to the right native app.
SYS · PER-APP
Zoom and mute, remembered
Set a comfortable zoom for each app and mute the loud ones. SpaceDeck restores both every time the app loads.
SYS · SESSION
Nothing leaks
Cookies, local storage and logins stay inside the app that owns them. No cross-site trail between your work and personal life.
Capabilities
Everything, built in.
The browser features you used to bolt on with a dozen extensions, wired into SpaceDeck and made to work together. No add-ons to trust, no settings scattered across five tabs.
Organize
Your apps, in order.
01 · SPACES
Isolated workspaces
Group apps into spaces, each app in its own cookie container. Stay logged into every account at once.
02 · ROUTING
Smart link routing
Links open in the app and account that own them, automatically. External schemes hand off to native apps.
03 · PER-APP
Zoom & mute memory
A comfortable zoom and a mute switch remembered for every app, restored on each load.
Mail & badges
Know what needs you.
04 · INBOX
Unified Inbox
Unread mail from every Gmail account in the space, newest first, with sender and subject. Pick one and it opens in the account it belongs to.
05 · BADGES
Unread counts that follow you
LinkedIn, Facebook, X, Slack and more show their unread count on the sidebar icon, read straight from the service. Watch them in the background without keeping a tab open.
06 · MAIL
New mail, on your desktop
Native notifications with sender and subject, drawn from the same unread feed as the badge. Quiet during Do Not Disturb.
Move faster
One keystroke, anywhere.
07 · PALETTE
Command Palette
⌘K to jump to any app, tab, workspace or URL, run an action, or search the full text of pages you have visited.
08 · DOCK
Side Dock
⌘⇧D keeps one app parked on the right edge — chat, calendar, an AI assistant — while you work in the main pane. It never covers the page.
09 · IMPORT
Bring your bookmarks
Import from Chrome, Edge, Brave, Vivaldi, Arc, Opera, Safari or Firefox, folders and all. The browser you came from is never modified.
Focus
Quiet when you need it.
10 · SIGNAL
Notification center
Every app's alerts collected into one bell, with an unread count and a tidy history you can clear.
11 · DND
Do Not Disturb schedule
Flip on quiet mode, or set a daily window and let SpaceDeck silence everything on time, every day.
12 · SOUND
Per-app new-mail chime
Give an app a subtle sound when its unread count rises, throttled so it never turns into a racket.
Sync & files
Across Macs, on your terms.
07 · SYNC
Cross-device sync
Workspaces, bookmarks and settings sync over your own iCloud or Google Drive. Passwords and sessions stay on the device.
08 · TRANSFER
Download manager
Track every download in one panel. Pause, resume, cancel, open, or reveal in Finder.
⌘P · EXPORT
Export hub
Send any page to PDF, Word, Markdown, Obsidian or Google Docs, or copy it clean, in two keystrokes.
Power & reach
Built for people who ⌘ everything.
09 · BOOSTS
Custom CSS & JS
Inject your own styles and scripts per app. Re-applied on every load, wrapped so a bad script never breaks the page.
10 · SHELL
Built-in terminal
A real shell docked beside your tabs, backed by a genuine pty. The repo is right where the apps are.
⌘⇧SPACE
Tray & global hotkey
SpaceDeck waits in the menu bar and answers a global shortcut from any app you are in.
⌘E · ASSIST
Claude, docked
Run the official Claude extension in a right-hand side panel and let it read the page with you.
11 · LOCALE
日本語 & English
The whole interface is localized and switches language in a single click.
12 · ZOOM
Reader-friendly type
Sensible minimum sizes and per-app zoom keep dense web apps comfortable to read all day.
For people who ⌘ everything
A power user lives here too.
SpaceDeck grew up in a terminal and never forgot. The tools you reach for by muscle memory are built in, not bolted on.
The shell
A real terminal, docked in the browser.
Backed by a genuine pty, the built-in terminal sits right beside your tabs. Node is running, the repo is open, and the app you are testing is one pane away. No context switch to another window.
node-ptyxterm.jsweb links
deck ~/dev/spacedeck $ spacedeck open notion --space work
↳ opened in isolated container “app-notion-work”
deck ~/dev/spacedeck $ spacedeck boost gmail ./hide-promos.css
↳ boost applied · re-runs on every load
deck ~/dev/spacedeck $ spacedeck sync --icloud
↳ 4 workspaces pushed · 0 credentials sent
deck ~/dev/spacedeck $
↳ opened in isolated container “app-notion-work”
deck ~/dev/spacedeck $ spacedeck boost gmail ./hide-promos.css
↳ boost applied · re-runs on every load
deck ~/dev/spacedeck $ spacedeck sync --icloud
↳ 4 workspaces pushed · 0 credentials sent
deck ~/dev/spacedeck $
Boosts
Bend any app to your will.
Give any app a Boost: your own CSS and JavaScript, injected on every load. Hide a promo rail, restyle a cramped toolbar, or automate a click you make forty times a day. Scripts run wrapped in a guard, so a mistake never takes the page down with it.
Boosts travel with the app when you sync, because they are part of how you use it.
/* hide the promotions clutter */
.aeF .nZ { display: none; }
.zA.yO { font-size: 15px; }
// tidy the compose window on open
document.querySelector('.T-I-KE')
?.setAttribute('title', 'New');
.aeF .nZ { display: none; }
.zA.yO { font-size: 15px; }
// tidy the compose window on open
document.querySelector('.T-I-KE')
?.setAttribute('title', 'New');
Export hub
Any page out, in two keystrokes.
Hit ⌘P and send whatever you are looking at straight to the format you need. No print dialog roulette, no copy-paste cleanup.
PPDF
WWord
MMarkdown
OObsidian
GGoogle Docs
↩Copy clean
Always within reach
One keystroke from anywhere.
⌘⇧SPACE
Global hotkey
Summon SpaceDeck to the front from inside any app, and send it away just as fast. Rebindable to whatever fits your hands.
TRAY
Menu bar resident
SpaceDeck waits quietly in the menu bar. Click to bring it forward, open a fresh tab, or quit.
⌘E
Claude side panel
Dock the official Claude extension on the right and let it read the current page with you.
Make the browser
work the way you do.
Boosts, a real shell, and a global hotkey. SpaceDeck bends to your workflow instead of the other way around.
Download · v2.2.1
Bring your whole web into one orbit.
A native macOS app. Your apps, your accounts, your machine. There is no SpaceDeck account to create and nothing to sign up for.
SpaceDeck for macOS
Signed and notarized by Apple. Download, drag to Applications, and add your first app.
Requirements
What you need.
Operating system
macOS 12 Monterey or later (macOS 13 and up recommended)
Architecture
Apple Silicon (M-series) and Intel (separate builds)
Disk
About 300 MB installed
Account
None. SpaceDeck never asks you to sign up
Sync
Optional, over your own iCloud Drive or Google Drive
Included
Everything in the box.
- ✓Isolated workspaces with a container per app
- ✓Cross-device sync over iCloud or Google Drive
- ✓Notification center with a Do Not Disturb schedule
- ✓Download manager with pause and resume
- ✓Boosts, custom CSS and JS per app
- ✓Built-in terminal backed by a real shell
- ✓Export hub to PDF, Word, Markdown, Obsidian, Docs
- ✓Menu bar tray and a global hotkey
- ✓Unified Inbox for every Gmail account in a space
- ✓Side Dock on ⌘⇧D, one app parked beside your work
- ✓Bookmark import from eight browsers
- ✓Touch ID for passkey sign-in
- ✓Claude side panel on ⌘E
- ✓日本語 and English, switchable in a click
Privacy
Local first, by design.
SpaceDeck keeps your logins, cookies and sessions on your Mac. Sync, when you turn it on, runs through your own cloud storage, so your workspaces move between machines without passing through anyone else's server.
No SpaceDeck account means no profile to leak, and nothing to delete but the app itself.