DockLockr

DockLockr is a tiny macOS menu-bar app that freezes your Dock exactly how you like it — no accidental drags, resizes, or rogue icons. Flip a switch to unlock whenever you want.

Three locks

• Lock Dock Items — stops apps being added, removed, or rearranged. macOS deletes a pinned app on a single careless drag, with no confirmation and no way to require one.
• Lock Dock Size — pins the size and magnification, so dragging near the Dock divider does nothing. The divider is a resize handle macOS won’t let you disable.
• Pin Dock to a Screen — keeps the Dock on the display you choose instead of following your pointer between monitors.

Each lock is an independent toggle — use one or all three. Quitting DockLockr unlocks the Dock cleanly behind it, and a one-click Reset Dock restores everything immediately, so you are never stuck with a frozen Dock.

One-time purchase with a free 3-day trial, and a licence that activates on up to three machines. Signed and notarized, distributed directly rather than through the Mac App Store — locking the Dock needs more access than sandboxing allows. Requires macOS 15 or later on Apple Silicon.