Mounty for NTFS

A tiny tool to re-mount write-protected NTFS volumes under Mac OS X 10.9+ in read-write mode.

Latest version: 1.9

Easy: A menu icon

Start the program and see it in action:

You will be notified if there is any volume connected to the computer which is NTFS formatted and ready to re-mount in read-write mode.

Light: A simple design

Mounty for NTFS comes without any decorations.

No additional driver will be installed. It simply makes use of the build-in mechanisms already provided by Mac OSX Mavericks - no strings attached.

Get: Click to install

Mounty for NTFS is available for free. You can get it here right now.

If you prefer Homebrew , you'll probably know what to do: brew cask install mounty

To support further development of Mounty, we encourage you to make a donation via Paypal:

From the icon in menu bar you can always bring a finder window to front to manage the contents of the mounted drive.

The colour of menu icon reports the current state:

  • - inactive - nothing to mount
  • - active - Volume available to re-mount
  • - working - Mounty is operating
  • - idle - Volume writable mounted
  • - error - mount failed

A bit of background

Occasionally I need to share files with my colleagues via USB sticks. Since we are working on different platforms the sticks might be NTFS-formatted. No problem so far, there are several resources out to the web describing to accomplish this task, e.g.

I personally have chosen the more pragmatic way, just open a terminal and issue some mount commands like:

        macbook:~ uwe$ sudo umount /Volumes/UNTITLED
        macbook:~ uwe$ sudo mount -t ntfs -o rw,auto,nobrowse /dev/disk3s1 ~/ntfs-volume

However, tired of typing this over and over, I have written Mounty to accomplish exactly this - but in a much more convenient fashion. So, under the hood, it happens an unmount and a remount short after, followed by opening a Finder window pointing to the hidden mount point.

Please let me know if this tool is also useful to you; and do not hesitate to ask a question that might appear using Mounty.

Some questions that might come up

My USB stick will not re-mount. An alert is popping up telling me to re-attach the stick, but this doesn't help.

This can happen when the USB stick is not cleanly unmounted from the Windows PC. If you simply unplug the USB stick from PC without using the little tray icon to detach the hardware correctly, the volume will be marked as "not cleanly unmounted". There might be some dirty sectors left and Mac OS X will not be able to re-mount in read-write mode for that reason.

Suddenly all my files disappeared - please help!

This is usually happen when not all files are written properly due to an unmount operation not finishing. The NTFS partition might be marked as "dirty" and the Apple NTFS driver cannot recover from that situation. Mounty will not delete anything by itself, please try to restore your files on a Windows PC using usual recovery s/w, i.e. chkdsk command line utility or professional tools like GetDataBack for Windows. If you do not own any Windows you can use tools for macOS that can deal with NTFS partition maintenance, like Paraogn Harddisk Manager or Tuxera Disk Manager.

Sometimes the files are grayed out and cannot be modified anymore.

This is because the file has extended attributes, refer to the Manpage of xattr for further explanation. If you open the file path in terminal application, you can list the attributes with ls -l@ <filename>, and remove those attributes with xattr -d com-apple.<attribute> <filename>, i.e.: xattr -d testfile.txt

Unable to re-mount in read/write mode when trying to mount Windows 10 partition

If you try to mount a Windows System partition, Mounty might fail when Hibernation feature is enabled. There is a Fast Start feature in Windows which might be enabled by default, and this is causing the drive to be locked. Within Windows running, you need to run the command powercfg /hibernate off in an admin powershell and restart Windows to disable this feature and remove the lock to enable it for Mounty. Thanks to Art Schultz pointing that out.

Version History

Version 1.9 - 21th of Sep 2018

  • bug fix for crash when Volume does not contain UUID (e.g. MBR Disk)
  • Note: Old devices which does not contain UUID cannot be tracked for auto-mount
  • Russian Credits Page added (again, thanks to Anton)

Version 1.8 - 12th of Sep 2018

  • Added Russian Localization (thanks to Anton)
  • Added feature to automount volumes (without the notification)
  • fixed equal volume name bug

Version 1.7 - 4th of Nov 2017

  • Localizations updates ane new ones:
  • - Portuguese (thanks to Carlos)
    - Chinese corrections, thanks to Barry
    - new Chinese Traditional, thanks to Barry
    - Brazilian (thanks to Bruno)
    - Spanish (thanks to Daniel)
    - Korean (thanks to Kim Jinbong)
  • As far as I have tested, this version runs perfectly on Mac OS High Sierra.

Version 1.6 - 2th of June 2017

  • Localizations Updates:
  • Thanks to the community, bunch of corrections were made to improve the Google translations of
    - Chinese (thanks to Gerald and Yang)
    - Italian (thanks to Emanuelle and Helmo)
    - French (thanks to Dominique)
    - new: Dutch (thanks to Ferdi)

Version 1.5 - 26th of May 2017

  • Localizations (incomplete and made by Google. If you want to contribute, please download the Localization String File, correct it, and send new version to me).

Version 1.4 - 25th of May 2017

  • Compatibility update to fix an issue with macOS 10.12.5
  • Added new status: Mounts is operating: The re-mount of larger volumes can take a while. When mounts is working you cannot accidentally issue another action anymore.

Version 1.3 - 29th of January 2017

  • Smaller tray icon
  • Fixed some possible memory leaks
  • Added modal alert when drive has spaces in names: I am using DADiskMountWithArguments API from Disk Arbitration framework and when there are spaces in volume name the remount action will fail with unknown error. If you have an idea how to solve it, please let me know.

Version 1.2 - 9th of November 2015

  • Fixed a problem where volumes appears as not re-mountable by mistake intermittently.

Version 1.1 - 27th of July 2014

The Appstore Sandbox restrictions does not allow sandboxed apps to re-mount external volumes. We have rejected Mounty from Mac Appstore for that reason and decided to distribute it for free, without Sandbox capability.

Mounty uses Apple's Notification Center to issue notification whenever a NTFS volume to re-mount is detected. If you want to re-mount a volume from a notification please change the alert style to "Alert" for Mounty from Notification Center Settings ::...

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