Commonly opened with
  • macOS (runs natively)
Supported platforms
  • macOS
Editable?
Not really — it's a runnable or packaged format
Viewable without special tools?
Not directly — needs the right app
Inherent format risk
Handle with care
Safety guidance (not a guarantee)

This runs code directly on your system when opened. Only install or run software from sources you trust, and consider scanning it with antivirus software first.

Check another filename

File extension lookup

No upload, no sign-up — everything is analyzed locally in your browser.

Frequently asked questions

What is a .app file?

A directory structured to look and behave like a single application on macOS, containing the executable, resources, and metadata.

Can I edit a .app file?

Not directly as text — .app is a runnable or packaged format, not one meant for manual editing.

Does having a .app extension mean the file is safe?

No single extension can guarantee that. This runs code directly on your system when opened. Only install or run software from sources you trust, and consider scanning it with antivirus software first. Always consider where the file came from, not just its name.

Privacy: The lookup above runs entirely in your browser. Nothing you type is uploaded, logged, or sent anywhere.

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