Keystone app icon

Keystone

Input source switcher

Version
1.6.2
Oct 19, 2026
Downloads
813
All versions
Requires
macOS 26
or later
Price
Free
Open source
Size
5.4
MB

Caps Lock becomes an instant input-source switch, rerouted to a spare key inside macOS itself, with none of Caps Lock's built-in delay.

Features

  • Caps Lock switches input sources with zero delay
  • Or tap ⌘ / ⌥ alone to switch, and every shortcut keeps working
  • Rerouted in macOS's HID system, so nothing reads your keystrokes
  • Re-asserts itself after sleep and keyboard reconnects

What’s New

Version History
Version 1.6.2

Changed

  • Opening Keystone again while it's running, from Spotlight or the Applications folder, brings up Settings.

Fixed

  • With the menu bar icon hidden, opening Keystone when it wasn't running showed no window.

Ratings & Reviews

5.0out of 5
★★★★★
★★★★
★★★
★★
★
3 Ratings

좋네요

Jinu

karabiner 사용중이었는데 세팅도 번거롭고 설치된것도 많아서 이상했었는데 너무 가볍고 간단해서 좋아요

Developer Response

감사합니다!

감사합니다

Anonymous

덕분에 karabiner 삭제했어요

Developer Response

감사합니다!

신세계임

Anonymous

ㄹㅇ강추

Developer Response

감사합니다!

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