Easy Subtitles Synchronizer is an application that allows users to repair and synchronize subtitles. The subtitles used are pulled from opensubtitles.org. The software is able to perform a smart search of the video file when a subtitle file is loaded, and the subtitle file when a video file is loaded. It also has the capability to delete the existing file and create and insert new subtitles. The drag and drop functionality is used for both subtitles and video files.
Easy Subtitles Synchronizer features an easy-to-use interface designed for users with no background on subtitle creation and repair. The main menu includes functions for File, Edit, Video, Settings, and About. A preview screen, volume control, and video control functions are found on the upper part of the main interface. Synchronization and repair tools include tabbed functions that display Info, Adjust, Manual Synch, Move Start, Change Start, Extend, Manual FPS, FPS, Repair, Search, and Download. The central screen displays five columns labeled Index, Begin, End, Line1, and Line2. A red exclamation mark is displayed on the leftmost part of a line when an error is detected. In addition, the line becomes colored when there is a gap detected from the previous one.