If Crashes when opening

Apple removed TNT’s certificate, so the app will crash after July 12th. The current solution is to sign it yourself.

Run in Terminal

codesign --force --deep --sign - /Applications/name.app

Requisite: Xcode or the Apple Command Line Tools
To install, execute

xcode-select --install

in the terminal emulator of your choice, and the macOS GUI will give you the option to install Xcode (from the Mac App Store) or the CLTs. If you install Xcode, launch it at least once to complete the installation and agree to the license.

Alternatively, you can use CodeSigner to sign some apps.

Installation instructions:

  • downloaded CodeSigner, then mount the DMG volume
  • Copy CodeSigner.app from the mounted DMG volume into one of your applications paths; recommended: ~/Applications/Utilities/
  • If you are using macOS Finder or a similar application with Services support as your main file manager, double-click the CodeSigner workflow: a window titled Quick Action Installer will appear asking you if you want to install it; click Install. You can assign a keyboard shortcut to the Quick Action in System Preferences > Keyboard > Shortcuts > Services > Files and Folders > CodeSigner
  • If you also want the ability to manually run CodeSigner in a terminal emulator—example:
  • codesigner /Applications/Parallels\ Desktop.app
  • —copy the codesigner shell script into your $PATH, e.g. /usr/local/bin/
  • On Mojave please allow CodeSigner to control System Events; this is necessary for GUI prompts to work via AppleScript

What’s New

Version 0.9.3 beta 4:

  • CodeSigner will now grab an application's or file's icon for the notifications
  • Bug fix: account for terminal-notifier display error in case of filenames with leading double-quotes (thanks to roryokane)
  • If codesigner doesn't execute as a Platypus app, it will search for terminal-notifier only in the default macOS Applications paths, and in installation directories for Homebrew, MacPorts and Fink (thanks to roryokane)


OS X 10.8 or later, 64-bit processor


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28 Responses

  1. Frank says:

    Hi AppKed! I installed x-code, then run in terminal code sign command. As a result the signature was replaced but still the app continues quitting unexpectedly. After that, downloaded CodeSigner app, copied to the Apps/Utilities recommended folder, then started the app and selected the crashing app and run the re-sign. Re-signing was completed successfully, but as a result the app still does not work. Any suggestion? Thanks.

  2. FStorm says:

    1Password after signing does not work. The app continues quitting unexpectedly.

  3. ITEGYPT says:

    If you install it over you have to re-sign it again. Is your CleanMyMac X is authenticating your user/pass?

    • FStorm says:

      @ITEGYPT Yes. I deleted the application completely. I installed it again and tried to sign it. Do not work. The restart after the signing did not help either.

  4. ITEGYPT says:

    For example, If you enter the string below and you hit enter, you an error, just right click and use the CodeSigner app and it will work
    codesign –force –deep –sign – /Applications/Downie 3.app
    /Applications/Downie: No such file or directory

  5. JumpinJack says:

    Problem with Alfred 4.0.3: CodeSigner works perfectly with the main app (~/Applications/Alfred.app), but then it’s impossible to open Alfred Preferences (~/Library/Application Support/Alfred/Alfred.alfredpreferences), and CodeSigner doesn’t work with it, probably because it’s not effectively an App, but an “alfredpreferences” file and I don’t know what to do to solve this!

    • JumpinJack says:

      Sorry, I was wrong, Alfred Preferences.app is inside Alfred.app, precisely: /Applications/Alfred 4.app/Contents/Preferences/Alfred Preferences.app
      and obviously CodeSigner worked perfectly with it, so thank you very much!!

  6. jakeypal says:

    Codesigning does not help 1Password 7.3.1. It still crashes. I cannot even re-install it: the installation does not finish (((. Total fail

  7. elwoo says:

    Hey guys i need a working 1password 🙁

  8. jazzluv says:

    Nothing is working for me either. None of my apps downloaded from the site work anymore

  9. ITEGYPT says:

    1password never worked right for me, it’s safari extension never worked always gave me issues so I end up buying it because I need it to work 100%

    • elwoo says:

      Hey 1password 7.3 and 7.3.1 fully working for me incl. safari extension! 🙂
      But now: No cracked working version. You can use original version from official site. Working but can’t fill and save your passwords. Only use copy and paste method 😀

  10. ITEGYPT says:

    I followed up to the 3rd step, some applications are fixed but I still have lots of applications don’t work 100%

  11. ITEGYPT says:

    Try this version and see if it’s working.

  12. Amnesia says:

    Hi! I tried to reinstall the apps thinking that it might fixed the problem, after ready this post I did code signing as explained above, everything working again except those apps that I have reinstalled and now I getting this error massage:

    “This file was downloaded on an unknown date.”

    Only occurs with apps that I have reinstalled after the apps started crashing

  13. Su says:

    This won’t work at macOS 10.15.

    Apple activated the enforcement of app notarization in the previous week by telemetry. Any pirate app signed after June cannot be open after that. (The enforcement takes effect only after reboot. )

    This is the document about the app notarization : https://developer.apple.com/documentation/security/notarizing_your_app_before_distribution

    I don’t find any way to disable the Notarization now. Maybe, cracked app will be stamped out after macOS 10.15.

  14. Cassy says:

    Can someone explain to me why this has suddenly started to happen?

  15. fikriihaikal says:

    If your mac on Catalina 10.15.1

    and say
    CleanMyMac X” can’t be opened because Apple cannot check it for malicious software.
    This software needs to be updated. Contact the developer for more information.

    type this on your terminal:
    sudo xattr -rd com.apple.quarantine /Applications/[your app name].app

    if have space on their apps name use \. Like this:
    sudo xattr -rd com.apple.quarantine /Applications/CleanMyMac\ X.app

  16. magav91027 says:

    When i try to sign i get error The specified item could not be found in the keychain. How to fix it?

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