Keep your data private! Install Clario for mobile and desktop.
Try NowAd
Split & Concat
Split & Concat
3.0
4.0
0.0
Split & Concat free download for Mac

Split & Concat for Mac3.0

06 September 2009

Splits large files for upload.

What is Split & Concat for Mac

Split & Concat... In Internet newsgroups, large files often are split into smaller parts since messages can not be of more than a certain size to be able to post them in newsgroups.

For that reason you can find often binary files that are split in parts like filename.mp3.001, filename.mp3.002, filename.mp3.003 etcetera. It is possible to put these parts together using commands in the Terminal yet not everybody is handy with that. That is why I decided to create a small utility with the OS X interface that makes it easy for people to split large files to be uploaded, or to put together split files downloaded from the Internet. Of course, you can also use this program to split or recombine files that are too large e.g. to be put on one CD.

What's new in Split & Concat

Version 3.0:
  • Code rewritten for Mac OS 10.6 "Snow Leopard" (and 10.5).
  • Program no longer compatible with 10.4 or earlier due to compiler limitations.
  • Several bug fixes, e.g. "Cannot convert "" to integer" error is fixed.
  • On Snow Leopard in 64 bit mode the program will benefit from the 64 bit "split" and "cat" system commands.
  • Older registration keys will expire with this version.

Related articles

Try our new feature and write a detailed review about Split & Concat. All reviews will be posted soon.
Write your thoughts in our old-fashioned comment
MacUpdate Comment Policy. We strongly recommend leaving comments, however comments with abusive words, bullying, personal attacks of any type will be moderated.
0.0
(0 Reviews of )
There are no reviews yet
MacProCT
MacProCT
Feb 8 2020
3.0
0.0
Feb 8 2020
0.0
Version: 3.0
Does anyone know what's going on with this app? A part of it isn't 64 bit / Catalina ready. And the web site.... https://loekjehe.home.xs4all.nl/Split&Concat/index.htm ...is down when I try it.
mvfurtado3
mvfurtado3
May 20 2018
3.0
5.0
May 20 2018
5.0
Version: 3.0
Best! Ever!
Turquoise
Turquoise
Oct 14 2015
3.0
0.5
Oct 14 2015
0.5
Version: 3.0
I am unable to join back files. App still in "Snow Leopard" mode, hasn't been updated.
iamstoker
iamstoker
May 13 2015
3.0
5.0
May 13 2015
5.0
Version: 3.0
Just wanted to write how good this application is. I archived large .mov files (15Gb+) by splitting them into 2Gb files using Split/Concat (Version 2.02) over 10 years ago onto 3-4 DVD-Rs. I copied the .00x files onto my drive this week and by using the Concat button it worked perfectly to form a large 15Gb file again. Works flawlessly even though this update for Split/Concat is from 2009 (Version 3.0). Working in OSX Yosemite BTW.
Designer
Designer
Dec 27 2010
3.0
0.0
Dec 27 2010
0.0
Version: 3.0
Brilliant app. Been using it for years alongside MacPAR deLuxe. Works great but the app icon could seriously use a refresh (please).
Poikkeus
Poikkeus
Dec 21 2010
3.0
5.0
Dec 21 2010
5.0
Version: 3.0
While I've only used it twice, both times offered flawless rejoined archives - while other applications were unable to handle the files.
Doug-Engelbart
Doug-Engelbart
Oct 22 2009
3.0
5.0
Oct 22 2009
5.0
Version: 3.0
Today I split a .dmg of 6.7 GB into 4 pieces and, to test it, I concated it back into 1 piece and proofed it: Worked flawlessly on my G4 with OSX.5.8 ... and I used Split&Concat 2.5! Now I saw that 3.0 is out, so I download it.^^
Machinegun
Machinegun
Sep 17 2009
3.0
0.0
Sep 17 2009
0.0
Version: 3.0
I find that it doesn't work with Snow Leopard as well which is weird because this is supposedly a Snow Leopard release. I thought the files were bad at first, but then I concatenated them in Terminal and that worked perfectly. Hope there's a fix soon.
Iconz113
Iconz113
Sep 11 2009
3.0
0.0
Sep 11 2009
0.0
Version: 3.0
is stuffit duluxe capable of this function? or do I need this as well
The-Jtizzle
The-Jtizzle
Aug 17 2009
2.5
0.0
Aug 17 2009
0.0
Version: 2.5
Just a heads up, it's broken with 10.6 GM
-M-S-
-M-S-
Feb 5 2009
2.5
5.0
Feb 5 2009
5.0
Version: 2.5
This works fine, not sure what all the complaints are about. Mind you, I've only used it for concatenating files, not splitting them. But it's pretty stupid simple to use, just drag the .001 file on top of it and away it goes. If your files aren't concatenating correctly, it's probably because the files are corrupt, not an issue with this app. Thx for the work, dev, and for making this free.
Ashmadux
Ashmadux
Dec 3 2008
2.5
0.0
Dec 3 2008
0.0
Version: 2.5
GARBAGE. like someone else said..this POS doesnt work. why in living lords name would ANYONE use this to break apart files instead of just using a rar splitter? i came a cross a very valuable file(not in dollars) to me, and lo and behold, i saw something like use plit and congrats...whatever...and guess what happened...nothing. I just had to tell u folks why i was mad..oh, and avoid this like the plague.
Feh-App-Store
Feh-App-Store
Feb 15 2008
2.5
0.0
Feb 15 2008
0.0
Version: 2.5
Hmm... Interesting. Just worked fine for me on intel 10.5.2
Asauterchicago
Asauterchicago
Feb 9 2008
2.5
0.0
Feb 9 2008
0.0
Version: 2.5
Does anyone know of an alternative to this program? As mentioned before it does not work on leopard, it simply combines the first file with itself in a weird format, so it doesn't really seem to do anything. I know it's free so I'm not going to give it a negative review, since it looks like the original developer has abandoned the project (last update August 2006). Just wondering if there's an alternative for those of us that were unlucky enough to end up with one of these sets of split files. I've tried Machacha also, but it doesn't combine Split&concat files.
Faubelster
Faubelster
Jun 2 2007
2.5
0.0
Jun 2 2007
0.0
Version: 2.5
I'm attempting to use this app to join 38 files into a single dmg file. It concats the 1st file OK (albeit slow...). When I choose the 2nd file to concat, I get an overwrite warning. It just wants to overwrite rather than join the files. I've also selected all 38 files and dragged onto the icon and selected concat: each successive file overwrites the next. I've troubleshooted the obvious: There is nothing wrong with file names. aap.dmg.001, aap.dmg.002, etc Appreciate any suggestions to make this work or a suitable alternative app.
Akagi
Akagi
Feb 3 2007
2.5
0.0
Feb 3 2007
0.0
Version: 2.5
To me, an absolutely useless piece of software. Let me tell you what my experience is. Starting the app, clicking on Concat, indicating one of the two files (filename.sitx.001 and .filename.sitx.002), split by someone else, with the same tool. Indicating output folder, clicking on Choose... The result: 'You are trying to do something strange, like splitting a folder or disk. Place a folder or disk on a disk image first!' What? :) And this work receives 3.5 stars? What for? Anyway, it may work for someone else, but the way it is explained in the help file, does not. Does not do the job, useless.
Guest
Guest
Oct 5 2005
2.4.2
5.0
Oct 5 2005
5.0
Version: 2.4.2
Nice and stable app. Very useful! Many thanks :)
Guest
Guest
Aug 20 2005
2.4.2
5.0
Aug 20 2005
5.0
Version: 2.4.2
lol...3MB is small, unless your on a Mac powerbook 500 or older (10 yrs plus). Some of these negative comments really crack me up, but also concern me when the app is free, I wonder how a developer feels to read such things. This app is stable, it has never locked up or crashed for me, it works well, it's fast and is very intuitive.
Guest
Guest
Aug 19 2005
2.4.2
5.0
Aug 19 2005
5.0
Version: 2.4.2
The author implies this is a replacement for the command line and a 'small app'. When the download is already 3 MB compressed it's not correct to call it 'small' - especially when it's only wrapping tools you already have on your disk.
Guest
Guest
Jun 20 2005
2.4
5.0
Jun 20 2005
5.0
Version: 2.4
new version is out, click on the developper's link.
Guest
Guest
May 14 2005
2.4
5.0
May 14 2005
5.0
Version: 2.4
Don't listen to these guys who say these negative things about this app. I t works great. No probs here. Using Tiger.
Guest
Guest
May 14 2005
2.4
5.0
May 14 2005
5.0
Version: 2.4
Worst splitting app ever. MacHacha (http://macupdate.com/info.php/id/11052) is a million times easier to use, and simple too! The buttons are not clear (Concat? What on earth does that mean? You can figure it out, but its annoying). Also, I had to 'Concat' my files twice before i got the actual file, wtf is up with that? Useless, worthless software. Should be torched along with the rest of the Google search widgets...
Guest
Guest
May 6 2005
2.3
5.0
May 6 2005
5.0
Version: 2.3
I got errors when trying to concat a file that had just been split with version 2.2.1.
Guest
Guest
Apr 6 2005
2.2.1
5.0
Apr 6 2005
5.0
Version: 2.2.1
This is an excellent application that works just as it should, it splits and rejoins very quickly. I like and will even donate to support it.
Guest
Guest
Apr 25 2004
2.0
5.0
Apr 25 2004
5.0
Version: 2.0
This is amazing. Back when I was at Berkeley there was a competitin on to build the smallest program that would do the 'concatenate' part of this job. The winner was a C program that did direct system calls to bypass the runtime and compiled down to an executable less than 500 bytes long. Now 2.1MB is one of the smaller programs on MacUpdate today. Not a comment on the program, rather a comment on the times.
Guest
Guest
Apr 25 2004
2.0
5.0
Apr 25 2004
5.0
Version: 2.0
THIS PROGRAM DOES NOT WORK PROPERLY. if you want to be sure that your files a re safe, wait util the developer makes a new version. It has too much bugs. I got more than 20 everytime I try to split a file. I would never recomment it. Thanks for reading, Ivan
Guest
Guest
Aug 20 2003
1.5
5.0
Aug 20 2003
5.0
Version: 1.5
This app is good. I emailed the author to see if it could split raw Toast images or dmg files and he said it can. This app also splits massive file sizes. Others don't. Slow but good support. Bravo.
Guest
Guest
Aug 11 2003
1.5
0.0
Aug 11 2003
0.0
Version: 1.5
Can't say I ever use ; or ) in filenames anyway. It's the kinda thing that causes many programs to choke, certainly not this one specifically. Works on all my files which never have those characters. Maybe a future update will fix the problem.
Guest
Guest
Mar 25 2003
1.4
5.0
Mar 25 2003
5.0
Version: 1.4
Good for joining, but has some annoying flaws: uses 'panels' for info, which just slow it down by several seconds; bounces its icon when starting a join if it's not the front-most app; doesn't handle some common caracters gracefully.
Guest
Guest
Feb 9 2003
1.4
5.0
Feb 9 2003
5.0
Version: 1.4
This program sucks! It can't even handle characters like ';' and ')' in the filenames without giving some useless cryptic error
Free
4.0
0.0
App requirements: 
  • Intel 64
  • Intel 32
  • PPC 32
  • Mac OS X 10.5.0 or later

Downloaded & Installed 202,161 times

How would you rate Split & Concat?
Similar apps
iCrypt
AES 256-bit encryption.
Is this app is similar to iCrypt? Vote to improve the quality of this list.
Vote results
0
Upvotes
1
Total score
0
Downvotes
Audacity
Audio recording, editing and mixing tool.
Is this app is similar to Audacity? Vote to improve the quality of this list.
Vote results
0
Upvotes
0
Total score
0
Downvotes
Xfile
Split and merge files.
Is this app is similar to Xfile? Vote to improve the quality of this list.
Vote results
0
Upvotes
-1
Total score
-1
Downvotes
Split n Join
Split and combine movie clips, audio clips, or split DMG segments.
Is this app is similar to Split n Join? Vote to improve the quality of this list.
Vote results
0
Upvotes
-1
Total score
-1
Downvotes
Keka
File archiver.
Is this app is similar to Keka? Vote to improve the quality of this list.
Vote results
0
Upvotes
-1
Total score
-1
Downvotes