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SarkUI is a multiple video files and audio converter/muxer/demuxer/renamer. It's a wrap up of all the programs used for media extracting, muxing, converting (i.e. ffmpeg, mkvtoolnix, mp4box etc) under all-in-one GUI for multiple files simultaneously.

Free software
OS: Win
File size: 155MB
Portable version
Old versions
Version history
10 votes
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SarkUI screenshot

SarkUI screenshot 2
Latest version

1.0.2 (July 25, 2022)


Visit developer's site

Download SarkUI 1.0.2  155MB  Win  Portable

Download old versions

Download SarkUI old versions

Software License

Free software / FOSS (Free download and also Free and Open Source Software)

Supported operating systems


Version history / Release notes / Changelog / What's New

SarkUI v1.0.2
Third Public Release
Windows 10 x64 Binary

Major fixes:

Media files added in SarkUI with natural order. This way sorting subtitles and audio won't cause renaming problems.
Added security when Converting media files in case they already exist in dir.
Fixed bug exporting subtitles and audio in mp4 files.
Minor fixes:

SarkUI updated and work with latest gpac mp4box
Again as prev release, 2nd zip archive which includes all the executables inside sarktools folder. User does not have to download them separately. Only need to add ALL exe paths in Options to start working with SarKUI.
(Refer to each application's repo/site for license and fair use)

View full changelog

All features

With Sarkui you can add as many files of same type you wish and make changes all at once. You can:

Change/Add/Remove/Extract the cover in multiple video files
Rename the video tracks metadata title, subtitles and audio tracks name and language
Convert multiple media from one packager to another ( mkv to mp4 , ts to mkv etc)
Mux/Demux all subtitles or specific language from multiple files with one click
Show mediainfo of audio and subtitles from multiple files
Audio convert to other filetypes (with or without pitch correction and speed)
Rename multiple subtitle and audio files according to video files in the same folder to match the video name. Darktheme Included.

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Guides and How to's

Download SarkUI Portable download from the Download links under Download and Download other versions!

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10 reviews, Showing 1 to 5 reviews

Rating by tsilas1 on Dec 10, 2022 Version: 1.0.2 OS: Windows 11 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10

Rating by garcial on Jul 23, 2022 Version: v1.0.0 OS: Windows 10 Ease of use: 7/10 Functionality: 10/10 Value for money: 10/10 Overall: 9/10

At the beginning it has a steep learning curve with all these functions. Subtitle and Audio importing and exporting work well with mkv. Metadata changes also shown in mediainfo. Nice application

Review by revklav on Jul 23, 2022 Version: v1.0.0 OS: Windows 10 64-bit Ease of use: 6/10 Functionality: 10/10 Value for money: 10/10 Overall: 8/10

First of all this project is alive the last 20 hours (you can check it in github). Mods here were more than fast and kind to upload my app here and I thank them for it.

As for options and Settings, English is not my first language and I should have been more careful.
Though as I said, above the Download Link there's Developer's site and I hoped that people would check the manual before use any app (not mine only). I was obviously wrong and I had to point that out.

the App is all-in-one, so it should complete every execution the user make. That's why it's mandatory to add all paths of all required executables. I don't expect a user to do X and then go to options again to add another location to do Y. Settings.xml save the locations permanently exactly because I don't want the user to bother again with that.

Read-only dir? You add files from the same dir in SarkUI to modify them, to export subs, audio, mux , rename metadata, so you should expect that the current dir is writable.

Do you think is a good practice to test an app with renaming a - as title here says - required executables and expect to work normal?

To sum it up, if you had put all the location paths of the correct apps in Options , you should be ready and not bother again with the setup and truly test the app.

quote: accept my excuses.
No harm done. Thanks for pointing out things and I will change Settings name because is confusing and specify that ALL paths required. Please if you find bugs , add issue in github. We can continue in a new threat here of course. I'll be happy to fix all confusing issues and bugs.

Review by sarkas on Jul 23, 2022 Version: v1.0.0 OS: Windows 10 64-bit Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10

OK, so there's a few considerations to be added:
- It would make things easier to understand, if you didn't intermix "Settings" and "Options", or clearly said that both mean the same to you, and are used without distinction in your app.
- It would make things easier to handle, if you mentioned that ALL options need to be specified in the Options panel for the app to exercise anything useful (what's the use of the "enable" checkbox in that case, anyway?).
- Your app shouldn't bomb out with "Add dirs in Settings first", if e.g. one wishes to one-click-convert a ts to mkv, and hasn't enabled mp4box in Options panel. mp4box isn't used at all in that scenario, but your code in Main.cs explicitly checks for this setting to be configured and a filename provided. (I didn't want to d/l or install mp4box, so simply renamed mkvmerge.exe to mp4box.exe, which circumvented that programming flaw.)
- One doesn't have to add "dirs" on the options panel (there's no way to do that, anyway), one can only add file specifications (location incl. filename)
- There simply is no option or setting to set an output directory for a one-click conversion in this app. Neither in the github readme. The output file is created in the same folder as the input file, using the same basename as the source. I didn't check what your app would do in case the input location was read-only...
- I didn't take time to imagine or to find out what the intention could be for the parameters "DefaultOutputDir" and "LastUsedOneClickFolder" in settings.xml.

But thanks for pointing me at your project folder on github, and providing the source there. That helped me in understanding the app's behavior.

Perhaps all this should better get discussed in a thread in the forum, rather than posting this as another review...

Finally, please accept my excuses. I didn't mean to offend you in any way. I was just disappointed (hence the alias), because the app didn't work as I had eagerly hoped for, and didn't provide ease of use for my personal needs.

Review by Disappointed on Jul 23, 2022 Version: 1.0.0 OS: Windows 10 64-bit Ease of use: 3/10 Functionality: 5/10 Value for money: 10/10 Overall: 6/10

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