A quick look at PaceBar from Product Hunt. A quiet Mac app that warns you when you're context-switching too much and frying your brain.

Ever catch yourself with 43 browser tabs, 3 VS Code windows, Slack pinging endlessly, and a random ChatGPT tab open, only to wonder why your brain feels like mashed potatoes at 3 PM? If you've been there, pull up a chair.
Charbel, a fellow dev who probably suffered one too many mid-afternoon crashes, brought a neat little tool called PaceBar to Product Hunt. He realized his "focused blocks" were constantly devolving into chaotic, multi-tasking nightmares, and he only noticed it when his energy was already completely drained.
Instead of building another bloated productivity dashboard that requires you to manually log every breath you take, he built a quiet Mac menu-bar instrument. Here's the deal: PaceBar measures your on-device interaction patterns—like activity timing, idle time, focus time, and app switching. It then calculates a 0–100 "session load" readout. It basically acts as a speedometer for your brain, letting you know if your pace is Calm, Steady, or High (a.k.a. about to blow up).
The best part? It's not some privacy nightmare trying to harvest your keystrokes. Charbel made it a strict rule from day one: no accounts, no telemetry, no cloud processing. It doesn't read your screen or touch your files. Everything stays strictly on your local machine.
Sitting at a solid 123 upvotes, the PH community had some interesting takes on the launch:
At the end of the day, context-switching is the silent killer of developers. Bouncing between code, documentation, Slack, and various ai tools eats up your mental RAM faster than a bad memory leak on a cheap vps.
PaceBar is a solid, practical idea. It doesn't promise to magically 10x your coding speed. Instead, it just taps you on the shoulder and says, "Hey buddy, you're doing way too much at once. Take a breath." And honestly, in an industry obsessed with squeezing every drop of productivity out of us, a tool that tells you to chill out is a breath of fresh air.
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