Calenbar

Never miss a meeting again.

No te pierdas nunca más una reunión.

Calenbar keeps a countdown to your next meeting next to the clock, pulls you out of whatever you're doing when it starts, and gets you into the call in one click.

Install on your Mac

Free and open source. No account, and your events never leave your Mac. macOS 14 or later.

What Calenbar solves

At a glance

Know what's next without opening anything.

A glance at the menu bar tells you what's next; the panel, what's left of today; the card, everything about one meeting.

The panel
Panel. Click the menu bar item: the next meeting with Join, today and tomorrow, a month view and your world clocks.
Menu bar. Today's date, the next event and the countdown. It updates every minute and flashes in the last five.
The event card
Card. One meeting in full: the time here and abroad, Join, the room, who's coming, the notes.
The small annoyances, handled

Quiet until you need it.

Not going? Skip it

Right-click, Skip, and the bar moves on to the next one.

No 5 PM meeting all morning

Look an hour ahead, or the whole week.

Details without clicking

Point at the menu bar item and the event's card appears.

No invitation left hanging

Unanswered ones are flagged, one click from replying.

Links open where you're signed in

The right browser for work; Zoom and Teams in their apps.

Work stays work

The dentist doesn't show up in the menu bar at the office.

Days off you can see coming

Holidays and time off tint the month; dots mark busy days.

No duplicate rows

Personal events mirrored into your work calendar show once.

A room in seconds

Start a Meet, Zoom or Teams call, or open your standing room.

Always know how long you have

Next to the clock: a small calendar with today's date, the name of the event and how long until it starts. When it starts the bar says “now”, and while it runs, how long is left. Long names are shortened before they can push the item behind the notch.

  • Deep in something? In the last five minutes the bar flashes red, and can ping you.
  • Right-click the item for Open Calendar, Settings and Quit.
SafariFileEditView
16Weekly Sync•25m left
Thu 16 Oct 9:41 AM

Everything about a meeting, in one place

Click any event and the card opens beside it: the time here and in your other time zones, a Join button, the room, who's invited and who said yes, the notes. Join knows the services below; Zoom and Teams go straight to their apps if you have them.

  • Click a row and the card stays open while you move the pointer; click again, press Esc or click elsewhere to let it go.
  • Double-click opens the event in Google Calendar or Calendar.
The event card: time in Madrid and Tokyo, a Join Google Meet button, the room, guests and their replies

Into the call, whatever the service

Links are found in the event's URL, location or notes.

Hard to miss, even when you're deep in something

A notification with a Join button a minute before (or five, or ten). When the meeting starts, a small card appears in a corner of the screen, over every desktop and full-screen app, with a live countdown, Join and Snooze. Prefer a takeover? Switch the alert to full screen. And from any app, ⌃⌘J joins the next meeting.

The alert card: Starting in 12m, Weekly Sync, the room and who is coming, with Join Google Meet and Snooze buttons

Without reaching for the mouse

⌃⌘J
Join the next meeting, from any app. Change it in Settings › General.
Return
In the panel, join the meeting at the top.
Esc
Close the event card.
⌘,
Open Settings from the panel.
⌘ + drag
Move the menu bar item, for example right next to the clock.

Questions

Does it work with Google Calendar?
Yes. Calenbar reads whatever the Mac's Calendar app has, so a Google, Exchange or iCloud account added in System Settings › Internet Accounts shows up. No separate sign-in.
Why does macOS say it can't verify the app?
Calenbar isn't notarized by Apple, so macOS shows that warning on the first launch. Opening it through System Settings › Privacy & Security › Open Anyway is a one-time step; the guide shows where. Updates afterwards install themselves without it.
Where does my data go?
Nowhere. Events are read on your Mac and never sent anywhere. Calenbar goes online for two things only: a daily check for a new version, and looking a city up in Apple Maps when you add a world clock.
Can it sit right next to the clock?
macOS decides where third-party items go and puts new ones at the far left, which is also what it hides first when the bar is crowded. Hold ⌘ and drag the Calenbar item next to the clock once; it stays there across relaunches and updates.
Does it use battery or data?
Barely. Calenbar doesn't sync anything itself: it reads the Mac's calendar database, wakes up once a minute to update the countdown, and every five minutes asks macOS to refresh accounts. The heavy lifting (talking to Google or Exchange) is done by the system, as it already is for the Calendar app.
Can I install it from the terminal?
Yes: brew install --cask hercase/calenbar/calenbar. The first launch still needs Open Anyway once; the guide shows where. Updates still come through the app itself.
How do I uninstall it?
Right-click the menu bar item, Quit, and drag Calenbar from Applications to the Trash. To remove its settings too, delete ~/Library/Preferences/com.hernancase.calenbar.plist. With Homebrew, brew uninstall --zap --cask calenbar does both.
What does it cost?
Nothing. It's MIT-licensed and the source is on GitHub.

Be on time for your next meeting

A few megabytes, no account, and it updates itself from then on.

Install on your Mac