Also known as: .part, .download

Commonly opened with
  • Web browsers (Chrome, Firefox, Edge)
Supported platforms
  • Windows
  • macOS
  • Linux
  • Web / Cross-platform
Editable?
Not really — it's a runnable or packaged format
Viewable without special tools?
Not directly — needs the right app
Inherent format risk
Generally low risk
Safety guidance (not a guarantee)

A generic or catch-all format. What it can actually do depends entirely on the application that created it — treat it with the same caution as any file from an untrusted source.

Check another filename

File extension lookup

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

Frequently asked questions

What is a .crdownload file?

A placeholder for a file still being downloaded by a browser. It's incomplete and generally unusable until the download finishes and the browser renames it.

Can I edit a .crdownload file?

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

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

No single extension can guarantee that. A generic or catch-all format. What it can actually do depends entirely on the application that created it — treat it with the same caution as any file from an untrusted source. 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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