About converting to subrip
Subrip (srt) is a very basic subtitle format, because of this you will almost always lose some functionality or effects when converting to srt. This online format converter tool works with Windows, Mac (Apple) and Linux and doesn't require you to install freeware on your computer. The paragraphs below describe what you can expect when converting your subtitles to srt. You can learn more about the subrip format here
Converting ass to srt
Advanced Substation Alpha (ass) is, as the name says, a more advanced version of the Substation Alpha (ssa) format. It supports many effects, a few examples are custom fonts, pictures, positioned text, colors, moving text and karaoke text. Srt doesn't support any of these things, and when converting ass to srt, all these effects are either removed or changed to normal text. Changing ass files to srt files usually works pretty well, except for the occasional overlapping text as a result of removing text position effects. You can learn more about the ssa and ass format on the Wikipedia page
Converting smi to srt
Synchronized Accessible Media Interchange (sami or smi) is an old subtitle format originally created by Microsoft. Smi files are barely ever used these days because there are far superior alternatives like srt or ass. Korea used to use the smi format to create subtitles for movies, most old Korean movies that come with subtitles use the smi format. Smi files support multiple languages in the same subtitle file, which should work fine when converting to srt.
Converting a batch of subtitles using zip
You can convert up to a hundred files at the same time with this tool by uploading a zip file. Click here to see the zip file rules. Currently, files should be in the root of the zip file, files in folders are ignored. This will be improved when i have time to fix it. If your zip contains at least one valid file to convert, you will receive a zip file back. If any errors occurred, the returned zip file will contain a text file that describes the errors in detail.