SubTimer is an easy-to-use subtitle editor based
on SubStation Alpha, an abandoned freeware project
for Windows. It features simple editing (cut,
copy, paste, line split and merge, insert, and
delete), time shifting for shifting a range of
subtitles by a specified amount of time, timing
based on an audio file (the audio wave is
displayed on the screen, and the user can pick the
start and end times by clicking on it), and
UniCode support. It supports Substation Alpha
(srt), SubRip (ssa), and plain text subtitle formats.