VobSubStrip

VobSubStrip is a lightweight and portable software application that gives you the possibility to reduce the size of subtitle files. It offers support for .idx format and lets you pick the exact subtitle streams you want to extract.

As there is no setup pack involved, you can save the executable file in any part of the hard drive and just click it to launch VobSubStrip. Otherwise, you can save it to a pen drive or other removable storage unit, in order to run it on any PC with minimum effort and no previous installers.

What's more, unlike most installers, it doesn't integrate new entries into the Windows registry or create extra files on the disk without your permission, thus leaving no traces behind after its removal.

The GUI is clearly outdated but easy to navigate. You can select a local .idx-formatted file, check the subtitle streams that you want to strip (there's a button for selecting or deselecting all streams), specify the output directory and file name, and proceed with the shrinking procedure with one click. There are no other notable options provided by this piece of software.

As expected, the program has minimal impact on computer performance, using low CPU and memory. No error dialogs were shown, and the tool didn't hang or crash.

Although it doesn't integrate rich features or configuration parameters, VobSubStrip delivers a simple and effective solution to removing unnecessary subtitle streams from .idx files, and it can be seamlessly handled by all types of users, even those with little or no experience in such software.