PeekFocus

PeekFocus does one thing and does it perfectly: one keystroke blurs everything behind your active window. That's it. That's the whole product. And honestly, that's the point.

If you've ever done a screen recording and realized your messy desktop, random notifications, or 47 open tabs are distracting everyone—that's over. If you've done a demo and didn't want people seeing your inbox, your calendar, or your group chat—solved. If you've done a presentation and needed to switch apps quickly without exposing what you were working on last night—fixed. PeekFocus is the privacy filter for your digital life that you didn't know you needed until you used it.

It's simple, it's fast, it runs in the background, and it just works. Not every product needs to raise $50 million and hire 200 people. Some products just solve one annoying problem really, really well.