op.exe: which program is it?
op.exe is a program file that 2 Windows programs install, the best known being 1Password CLI. The list below names each one with its publisher and install folder.
| App | Publisher | Latest version | Default install folder |
|---|---|---|---|
 1Password CLI | AgileBits | 2.41.1 | — |
 OpenPencil CLI | OpenPencil contributors | 0.8.4 | — |
Frequently asked questions
Is op.exe safe?
op.exe is a normal part of 1Password CLI when it sits in the program's install folder and carries the publisher's digital signature. A file with the same name in another folder can be something else: check its signature and hash.
Where is op.exe located?
In the program's install folder, which the installer chooses; winget puts portable programs under %LOCALAPPDATA%\Microsoft\WinGet\Packages.
How do I remove op.exe?
Uninstall 1Password CLI through Settings → Apps or with winget; the uninstaller removes op.exe with it. Deleting the file alone leaves the rest of the program behind.