Drop a file, get the hash
Drag a file onto the window or choose it with ⌘O. MD5 Master calculates its checksum without changing the file.


Check a download, compare a backup or share a checksum with a file. Drop a file onto MD5 Master, or open it with ⌘O, to calculate its MD5. Copy the result, save it as text or compare it with a checksum on your clipboard. Everything runs on your Mac.
macOS 10.12 or later

Drag a file onto the window or choose it with ⌘O. MD5 Master calculates its checksum without changing the file.

Copy the expected MD5, then click Verify with Clipboard. A message tells you whether the checksums match. Uppercase and lowercase are treated alike.

Keep the window light or dark, or follow the system. Choose uppercase or lowercase checksums, and a classic or modern app icon.

MD5 Master doesn't collect any data. Its App Store privacy label reads “Data Not Collected”.
Drop the downloaded file onto MD5 Master. Copy the publisher's MD5 checksum on its own, then click Verify with Clipboard. Leading and trailing spaces are ignored, as is letter case.
MD5 Master works with one file at a time. It does not calculate a combined checksum for a folder.
No. MD5 Master calculates MD5 checksums. The reference checksum you compare it with must also be MD5.
Use MD5 to spot accidental corruption or incomplete downloads. MD5 is not secure against deliberate tampering, and a matching checksum does not prove that a file is safe or authentic.
Write to [email protected]. Include your macOS version and what you were doing when the problem appeared.
Drop a file. Calculate its MD5. Check it against the original.