Your Mac’s menu bar shows the date, but clicking it opens the full Notification Center — not a quick, glanceable calendar. If you want a small month view one click away, a free open-source app called CornerCal does the job beautifully. It lives in the menu bar, shows the date in your chosen format, and opens a compact calendar when you click it. Here’s how to set it up.
Step-by-step: add a calendar to the menu bar
- Download CornerCal. CornerCal is a free, open-source menu bar calendar for macOS. Grab the latest release from its GitHub page — look for the newest release and download the ZIP file. Open-source tools like this get regular community updates, and outlets like MacRumors frequently highlight the best ones for Mac users.
- Install the app. Unzip the downloaded file, then drag CornerCal into your Applications folder. The first time you open it, macOS may warn you that the app is from an unidentified developer — that’s normal for apps distributed outside the Mac App Store. Right-click the app, choose Open, and confirm to launch it.
- Let it run at login. Once CornerCal is running, you’ll see the date appear in your menu bar. Open the app’s settings and enable the option to launch at login so the calendar is always there after a restart. YouTube has quick setup walkthroughs if you want to see the process in action.
- Configure the date and time format. In CornerCal’s preferences, you can customize exactly what shows in the menu bar — date only, date and time, day of the week, and the format of each. Pick a layout that fits your workflow; a compact “Tue Oct 17” style keeps the menu bar tidy.
- Position the icon. Hold down the Command (⌘) key and drag the CornerCal icon left or right along the menu bar to place it exactly where you want it. This Command-drag trick works for most menu bar icons on macOS.
- Click to see the month. Click the CornerCal icon anytime to pop open a clean month-view calendar. Clicking a date copies it or jumps to it depending on your settings — no need to open the Calendar app for a quick check.
Why it’s worth doing
The built-in macOS clock shows the date but hides the calendar behind Notification Center, which feels heavy for a quick glance. A dedicated menu bar calendar saves you a click and a context switch every time you need to check a date. If you spend a lot of time in full-screen apps, you may also want to keep the menu bar visible in full-screen mode on Mac so your calendar is always within reach. And while you’re customizing the menu bar, monitoring your cloud storage space from the Mac menu bar is another handy addition. 9to5Mac regularly rounds up small Mac utilities like these that punch above their weight.
Power users who like quick access to everything should also check out how to quickly open the installed apps list on macOS — another small workflow win.
If it still doesn’t work
If CornerCal doesn’t appear in the menu bar after installing, check that it’s actually running (look for it in Activity Monitor), and make sure you haven’t hidden it behind the notch on newer MacBooks — try Command-dragging it to a visible spot. Apple’s support pages also explain how menu bar items behave on different Mac models.
FAQ
Is CornerCal free?
Yes — CornerCal is free and open source. You can download it from GitHub at no cost, and its source code is publicly available for anyone to inspect or contribute to.
Can I move the calendar icon anywhere in the menu bar?
Yes. Hold Command (⌘) and drag any menu bar icon — including CornerCal’s — to rearrange it. This works for most third-party menu bar apps as well as Apple’s own icons.
Conclusion
Adding a calendar to your macOS menu bar takes about two minutes with CornerCal: download it, install it, set your date format, and Command-drag the icon into place. From then on, a full month view is always one click away — a small change that makes checking dates noticeably faster.
