codesign

SafeVerify code signatures

codesign -dv <app>

Displays and verifies app signatures — confirm provenance or spot broken signatures.

Examples

codesign --verify --deep -v /Applications/Tool.appDeep-verify a signature

Syntax

codesign [-dv] [--verify] <app>

Before you run it

Read only.

Used when you see

Mac app won't open

Verify the app's code signature

See the whole flow →

Related commands

spctlGatekeeper status
xattrExtended attributes

The same reference, with no signal at all

Every command on this site, held on your device. The app adds 632 more: 1,510 commands and 120 fix flows, searchable with no connection. Free to install, no ads (some content is a one-time purchase).

Get it free on the App Store