SubConvertor

SubConvertor is a compact utility that facilitates the conversion between subtitle files of several formats, as follows: SSA, SRT and SUB to SSA and SRT. It does not require any installation and comprises limited functions which are easy enough to comprehend by less experienced users.
You can use this application to convert downloaded subtitles whose format is not compatible with the corresponding movie, in addition to making synchronization corrections if they are necessary.
In lack of a setup pack, you can just drop the primary file on any spot on the hard drive and run it directly. There's also the possibility of saving it to a removable storage unit, so you can run it on any PC effortlessly.
From the technical perspective, it is important that SubConvertor does not add new entries to the Windows Registry, therefore reducing the risk of system errors, or leave files behind on the hard drive after removing it.
The utility is wrapped in an ordinary GUI with a small window displaying all the available options. There are no menus with customizable settings included in SubConvertor.
Loading a subtitle file into the workspace is done using the file browser only, as the drag-and-drop method is not supported. Batch processing is not included among SubConvertor's features either, so you cannot convert multiple items at the same time.
The simplest way to initialize a conversion operation is by specifying the output directory, format and file name. However, several options give you the possibility of including new lines in the conversion, adding or deleting periods, changing the frame rate, as well as setting the offset. Log details include the total time, subs and speed.
SubConvertor barely uses CPU and memory, thus it doesn't hog the system resources. It completes a conversion job swiftly and without causing any problems to the user. Its lack of other, more advanced settings is probably due to the fact that the app has not received updates for a pretty long time. Nevertheless, SubConvertor delivers a simple solution when it comes to subtitle conversion.