InputAnchor
For macOS · per-app input source control
Lock your Mac's input source. Per app, every time.
InputAnchor keeps macOS switched to the exact keyboard input source you choose for each app — no more losing a sentence to an accidental language flip.
Requires macOS 14+. Paid activation requires Apple Silicon or a T2 chip — see system requirements below.
Quiet but strict
Set the rule once per app. It holds.
Per-app rules
Set which input source each app should use. InputAnchor switches for you and holds it there — switch apps, and it switches back automatically.
Works with real-world IMEs
Verified against widely used input methods such as WeChat's Chinese IME and Japanese Kotoeri, including their internal lock/switch behavior — not just plain keyboard layout swaps.
Device-bound licensing
Your license is cryptographically bound to your Mac's Secure Enclave, not a copyable file. One license covers up to 3 devices.
Website rules
Set input source by domain in Chrome too — website rules take priority over app rules, so github.com and docs in your native language can each keep their own default.
Lives in your menu bar
Lightweight, unobtrusive, one click away.
No Dock icon, no background noise. Check your current rule, lock an input source on the spot, or jump into rule management — all from the same menu bar item.
- Up to 3 Mac devices per license
- No subscription, no recurring fee
- Free trial available before you buy
- 14-day money-back guarantee