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AtomicParsleyGUI is a GUI front-end for AtomicParsley written in Objective-C. AtomicParsley is an open source iTunes media file metadata editor.


  • Edit media file metadata (powered by AtomicParsley)
  • Edit AAC audio metadata (AAC Audio, Purchased AAC, Matched AAC, Master for iTunes)
  • Edit "Purchase By" info
  • Edit hidden values not shown in iTunes
  • Batch processing
  • Audio preview
Feedback and issue reports: more...

What's New

Version 0.3.5:
  • Add new non-AtomicParsley based header meta "User ID".
  • Complete AAC Type Setting. (Add option for switching to non-purchased AAC)
  • Change the way to perform "Remove all tags".


  • OS X 10.9 or later

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AtomicParsleyGUI User Discussion

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Cai_ Member IconComment+17

I'm the developer of this. If you prefer to use non-AtomicParsley based editor, I've made a new version which is a standalone editor use Apple's AVFoundation.

You can find it here: http://www.macupdate.com/app/mac/51220/metarminator

If you like it, please rate. Thank you.

Reply0 replies
Version 0.3.5
GeorgiaJ2223 Member IconReview+1

Brilliant, this allows the removal of the 'Purchased' & 'Matched' tags amongst other things. There is no other app that does this and rightly deserves 5 stars.

Going forward, I would like to see:

1. The ability to save a particular configuration, e.g. choose the fields to save, enter 0 into the User ID box and choose AAC Audio. Next time you can choose this saved configuration for ease of use.

2. Apply a configuration (e.g. as in point 1) to a whole folder.

Great work and in such a short time, this deserves payment.

Reply1 reply
Version 0.3.5

Both are not hard to be done. However, I'm making another version from scratch that use Apple's AVFoundation framework instead of AtomicParsley. That should make it support all iTunes media without any problem that AtomicParsley has.

I'll consider add those features in the new version when it's done. Before then, the update of this will be put on hold.

Thanks for the feedback.

Maximas Member IconReview+43

The biggest problem making a FE for command line programs as Atomic Parsley is that you depend on the client devs. In this is case it is very bad because the latest version dates from 2006
Not only contains the ‘latest’ 2006 version a ridiculous amount of bugs - some do destroy your source files without warning due the notorious and known bit-shift bug and apar_determineatomaength bug !!!! - it does not work with some mp4 files and is not always compatible with modern players.

In my experience I really cannot recommend using Atomic Parsley because it CAN and WILL corrupt your precious audio files at one time.
So when you use this, make sure you have a backup.

Reply3 replies
Version 0.3.2

That said, I can recommend Tagger which is free and does not depend on clients.


The back-end I used with this release was v0.9.6 which is release in Feb 2014 (https://bitbucket.org/wez/atomicparsley/), I don't know any ‘latest’ 2006 version. But if you find any bug in AtomicParsley, maybe you should open a issue there so the current developer of it can fix it as I'm not contributing to that project. The lastest commit of his project is 2014-03-04, with iTunes 11 compatibility fix.

If you have a better back-end suggestions, you can point it out.

Afaik, the remove all tags command will not allow you to re-add any since it wipe all the metadata zone. Otherwise, it works without any problem on my end so far.

Thanks for the feedback tho. :)


BTW, if you have any sample audio files that will "corrupt" by this/or AtomicParsley with it, please let me have a copy in private so I can look into it.

Otherwise, it's won't improve anything.

Interstitial Member IconReview+4

Reasonably comprehensive tagger. Worth getting just for the ability to edit the 'explicit' tag! Personally, I use it to supplement other tools that do the common stuff on a larger scale. But for the obscure little tags that you already know what you want in them, this is just right. Thanks for creating this for those of us that aren't as patient with CLI. :-)

Reply1 reply
Version 0.2

v0.3 add batch processing support.

Hopefully it's not that buggy. Still need more bug reports to rule them out.

Morgan_Alex Member IconReview+96

Not sure why this would be helpful. It doesn't support batch processing, it doesn't offer more option compared to iTunes, it doesn't work with mkv files (maybe others too), it corrupted one file I tried.

Probably some sort of Create-my-first-app exercise.

Reply1 reply
Version 0.2

If AtomicParsley can't do it, this tool can't too. It's a GUI front-end. (Except the "Purchase By" and "Kind" editing, which is not stored in Atomic Tags, but there's no documents anywhere so what can you expect?)

I did my best to support almost all the tags supported by AtomicParsley, even some of the parts that it didn't. If you are good with CLI, you should use CLI so it should have less problem.

"It doesn't offer more option compared to iTunes", well, maybe you didn't actually compare both. iTunes let you see all of them, but not editing all of them, this does. And about the corrupted file, you should make sure the file use standard tags and headers. Afaik, those sold by iTunes or matched download from iTunes Match won't have issues, at least for .M4A musics. I don't have videos files from Apple to test it.

And no it's not yet support batch processing, as I wrote it in one day, on my free time. But is it's an open source and free project under GPL, if you think you can do something better, please do go fork it on GitHub and help others by improving it.

You know, it's always a bad idea to make things free or open source, because people will start complaining it does not have commercial quality. True it doesn't mean that free things must sucks, but consider someone who's not a coder, got nothing from doing such work for the community, should have feel when someone complains about a second release of a freeware as a "create-my-first-app exercise". Geez I don't even ask for donations or put ad in it.

You know, maybe I should keep open source things on GitHub only and no more pre-compile binary to download to get rid of non-power users. Go pay for things like Tagger that offers even less options, don't use this sort of create-my-first-app exercise crap.

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Current Version (0.x)


Downloads 693
Version Downloads 391
License Free
Date 12 May 2014
Platform Intel 64 / OS X
Price Free
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