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Auto Switch Input Source by App and Domain on Mac

This guide shows a simple way to configure input-source automation by app and domain without creating rule sprawl.

Best Minimal Setup​

Start with only three rules:

  1. Editor / IDE app rule
  2. Communication app rule
  3. One browser domain rule

Then test in your natural switching order.

Priority Logic (Keep It Clear)​

  • app rule = baseline
  • domain rule = browser refinement
  • domain rule should override broad browser default when both match

Common Mistakes​

  • adding too many rules at once
  • using inconsistent domain text
  • keeping outdated rules that no longer match your workflow

Maintenance Routine​

Weekly quick check:

  • remove stale domains
  • keep high-frequency apps explicit
  • verify one editor + one browser transition