The Big Mean Folder Machine is an easy to use file/folder management utility. It can split files into folder hierarchies or merge them into a single folder. With a familiar assistant-styled interface, The Big Mean Folder Machine is an essential tool for anyone who works with large file collections, including digital photographers, content creation, post-production, system administrators, and other creative professionals.


The Big Mean Folder Machine knows all about the shooting dates and times embedded in your digital JPEG EXIF or RAW picture files. With only a few clicks you can reorganize your entire photo collection into a customized folder hierarchy. Fancy organizing your photos by year and month? Click. Click. Done. Prefer a deeper hierarchy with year, month and date? Click. Click. Done.


The Big Mean Folder Machine is just as useful for your music collections as it can read id3 tags (Artist, Album, Title, Year, etc.) and use them to split your entire collection into a pristine folder hierarchy of your own design.


Anybody who has ever tried to burn a large file collection onto physical media such as DVDs or CDs will appreciate the Big Mean Folder Machine's ability to create batch folders of a particular size, so that you can backup each folder onto a separate data carrier.


The Big Mean Folder Machine cannot only split files into folders, but it can also do the reverse, namely merging the files from many folders and folder hierarchies into a single folder. Not only is doing this manually exceedingly tedious, but you also run into real problems when you run into files with the same name in several folders. The Big Mean Folder Machine takes care of these issues with its customizable file name conflict resolution algorithm.


All this would be of little use unless there is a safe, flexible and capable engine behind these pretty buttons.. The Big Mean Folder Machine packs an industrial-strength 64-bit database-backed processing engine that is capable of shifting hundreds of thousands of files and terabytes of data, while taking care of pesky problems such as file name conflicts.

The Big Mean Folder Machine provides you a full (!) preview of the folder hierarchies that it will create before doing anything and by default your files are copied rather than moved to their new locations, leaving you with a perfect copy should things not work out as expected. For the more adventurous file moving is of course also available, saving time and disk space but this is inherently less safe.


"We’d like to register a protest under the Trades Description Act. The Big Mean Folder Machine is neither big or mean. In fact, it’s really rather small and polite, helping you to organise your disparate files and folders with minimum mess and fuss.", 4 out of 5 mice, Mac World, December 2008

"As others have commented, this App is in many ways the Killer App. With the incredible amount of photos that you can collect in a small amount of time, or other files for that matter, this App is a God send. Let's say you have 1000 photos from vacation you want to separate into Folders of 100 each. Click Click Click - done. This has saved my bacon more times than I can count. Free time is fun time!", Killer Klown Kar on MacUpdate, November 2010

"Awesome. Saved me at least a full day rearranging 7 years of photos from multiple folders into a single structure with exactly the naming and date organization needed to move to a new workflow.", Zaph on MacUpdate, March 2010

What’s New

Version 2.42

- macOS 11 Big Sur compatibility
- native Apple Silicon support
- bug fixes and minor improvements

Ratings and Reviews

3.8 out of 5
9 Ratings

9 Ratings

msidoric ,

Stunning software

BMFM2 is a real powerhouse – easily sorted and renamed 100-thousand files in hours. Ran several tests first to be sure of its capabilities and logic – then set it loose. The results were perfect, exactly what I needed.

Two things would score it additional star: more verbose ‘status screen’ that shows progress at each step, and a functioning progress bar.

Big Mean Folder Machine 2 is a bargain at any price. Their other apps are just as good, too.

Capt.Huffnpuff ,

Easily merges files from multiple folders and splits them into a different hierarchy

Using a simple interface you can combine the contents of several folders or split the contents into new subfolders. It allows you to select a naming scene for the output folders and the number of entries or even allowing you seperate contents alphabetically, by kind, by date, and other parameters and assign unique names w/o duplicate file names. You can copy the input folders, preserving their contents or move the files, emptying the input folders. (It does not copy the metadata)

For example, I was looking for all files of a certain kind during a certain date range, say jpgs for january, 2011. This is the procedure I followed:

1) merge/copy all folders of all kinds (input folder preservered) -> merged folder.
3862 items, 1.68 GB, items into single file
. unique identifer (excluding kind)
. by name a-z, z-a, size sm-lg

2) split/move (input folder emptied) -> Kind file
combine by 1) kind, Sentence Case, 2) Creation Date, Upper Case, YYYY MM

The result was a folder by kind, YYYY, DD, and I could then easily select out the dates I wanted.

The tool is a bit cumbersome and would be nicer if it let me select only the files I want initially.

MechMykl ,

Almost too powerful?

Highly advise that you follow the in-app instructions for testing / learning how it works before going wild with your folder / file structures. Insanely powerful once you know what you’re doing with it.

App Privacy

The developer,, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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