When watching a MKV file from the web in VLC, the title bar (see "#1" in image below) seems to be pulled from metadata, not the filename.

If you open the “Get Info” panel in VLC, you can change the title (“#2”) and then click “Save Metadata” (“#3”), but when the file is re-opened, the old information is shown.

I have not found any other Mac apps which can edit MKV metadata. Several offer to edit mp4 metadata, but that isn’t what I need.

VLC annotated screenshot


I have found a way to do this using mkvpropedit which is part of mkvtoolnix.

mkvpropedit "foo.mkv" -e info -s title="This Is The Title"

There is a GUI wrapper for this app and other Mac installation instructions available at the official website.


As an addition one could use mkvpropedit in a bash script to set the title of all mkv files in a directory. (Given the filename is the desired title.)


# This script takes all mkv files in the current directory and sets the filename
# (without .mkv) as its title in metadata

for mkvfile in *.mkv; do
    mkvpropedit "$mkvfile" -e info -s title="${mkvfile::-4}"

Just open the file in VLC player, Ctrl+I, choose the desired Metadata, title etc, change and then in the bottom, click 'Save Data'. That's all.

No other external editor is needed.

  • 2
    That is in the OP. He said it didn't work. – Tetsujin Oct 16 '18 at 14:29
  • 1
    I tried this using VLC on a mac and it works. You just have to be sure to click the "Save Metadata" button in the Media Information window. It's not the easiest thing to find. – Ascii Dude May 8 '19 at 13:05
  • 1
    I think what may happen is if you change it, it will save, but if you just delete it, it doesn't. – Tetsujin Sep 6 '19 at 6:17
  • @Tetsujin is correct, if you enter an empty value it will not accept it, it will look like it's working but when you check again the old value is still there, so it's easy to assume it "doesn't work", and in a way I guess it doesn't. In short, you can't delete, just change to something else. – pzkpfw Jan 11 at 21:02

The MKVToolNix GUI way:

  1. From the menu choose header editor.

enter image description here

  1. Open the mkv file.

  2. Under segment information there is a title item, change title as you wish.

enter image description here

  1. There is not a save button, use the main menu to save changes.

enter image description here


MetaX for Windows will tag MKV files (as well as MP4, M4V, WMV, and AVI's). It also searches the internet for the information to use for tagging (cover art, actors, ...)

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