FULL-SCREEN ALERTS
Every connected display goes full-screen at your lead time — at start, or 1 / 2 / 5 / 10 / 15 minutes before.
FREE MAC APP · macOS 14+
FULL-SCREEN MEETING ALERTS. FOR MAC.
Klaxon throws a full-screen alert onto every display right before your calendar meetings start — impossible to ignore, above every app and Space. When there's a video link, one press takes you into the call.
FREE & OPEN SOURCE
PRIVACY-FIRST
macOS 14+
WORK
DESIGN REVIEW
15:44 – 16:14
2:00
JOIN VIDEO CALL
⌘1SNOOZE 1M
⌘2SNOOZE 3M
⌘3SNOOZE 5M
DISMISS ESC
[01]
// THE PROBLEM
TINY NOTIFICATIONS VANISH BEFORE YOU LOOK UP.
You're heads-down in deep work. You context-switch all day. Time blindness is real — and a banner that slides away in four seconds was never going to save you. Klaxon takes over the entire screen, on every display, so the alert is the one thing you cannot scroll past.
[02]
// WHAT IT DOES
BUILT LIKE A TOOL.
ONE-CLICK JOIN
Detects meeting links for 30+ services — Zoom, Google Meet, Teams, Webex, Whereby, Jitsi — from URL, location, or notes.
KEYBOARD-FIRST
Return joins. ⌘1/2/3 snooze. Esc dismisses. Every button shows its shortcut — hands never leave the keys.
CONFIGURABLE SNOOZE
Zero to three snooze buttons of your choosing (default 1 / 3 / 5 min), plus a plain Dismiss. Your call.
THEMES & SOUNDS
Ten gradient themes, a Random option, or your own image. Pair it with any macOS system sound — or silence.
CALENDAR-AWARE
Works with every account already in macOS Calendar — iCloud, Google, Microsoft/Exchange. Pick which calendars count.
[03]
// SEVERAL MEETINGS?
ONE ALERT FOR ALL OF THEM.
DO YOU HAVE SEVERAL MEETINGS AT ONCE?
Double-booked, back-to-back, or one standup on two calendars. Klaxon doesn't stack overlays or fire them one after another. Every meeting due within the same minute lands on a single alert, so you can pick the right call at a glance.
- 01One screen, one countdownMeetings due within a minute of each other share the alert. The countdown runs to the earliest start.
- 02A join key on every row↵ joins the first meeting. 2 3 4 join the rest. Each row shows its calendar, time and call service.
- 03One decision covers allSnooze or Dismiss applies to the whole group. Join one, and the others are dismissed.
- 04Nothing silently droppedUp to four rows fit on screen. The rest are counted: “+2 more not shown”.
MEETINGS DUE TOGETHER
[04]
// TRY IT
BUILD YOUR ALARM.
Pick a theme, how early it fires and which snooze buttons it shows. The preview uses the real overlay's layout. Then fire a test alert and let it take over this window.
ATHEMECLASSIC
Your image stays in this browser. Nothing is uploaded.
BMEETINGS AT ONCE
CALERT ME
DSNOOZE BUTTONS
Up to three, or none at all. The app takes any duration from 1 to 120 minutes.
Simulates an alert in this window and plays the sound. No real calls open or reminders are scheduled. ↵ joins, ESC dismisses.
[05]
// VS IN YOUR FACE
A FREE, OPEN-SOURCE ALTERNATIVE TO IN YOUR FACE.
In Your Face is a good paid app — polished, cross-platform, and commercially supported. Klaxon is a free open-source alternative to In Your Face: the same core idea, a full-screen alert you cannot miss before every meeting, built for the Mac. The differences are in the model, not the mission:
| Feature | Klaxon | In Your Face |
|---|---|---|
| Price | Free | $3.99/mo, $24.99/yr, or $69 one-time — free trial with limited alerts |
| Source code | Open source (MIT) | Closed source |
| Account & telemetry | None — reads your calendar locally | No account — anonymous usage analytics & crash reporting |
In Your Face details from inyourface.app, July 2026 — check their site for current pricing.
PRESS TO JOIN.
DOWNLOAD IT ONCE. NEVER SPRINT TO A CALL AGAIN.
First launch on a downloaded copy:
right-click → Open once to get past Gatekeeper.