Sub Station Alpha (SSA) is a free subtitle creation and editing app for Windows and macOS developed by the Sub Station Alpha Team. It allows users to create, edit, and synchronize subtitles for movies, TV series, and other video content. The app supports multiple languages and includes a wide range of features, such as creating subtitles from scratch, time-stamping existing subtitles, editing subtitles, and synchronizing subtitles with the audio. It also includes an automatic translation feature, allowing users to create subtitles in multiple languages in one go. Additionally, SSA allows users to export subtitles in popular formats, such as SRT, ASS, and SUB/IDX.
Suspended the latest version is 3.0.0.4 (09/23/2005, 650Ko, with its Delphi source code): it can still be downloaded from SourceForge.
Discontinued official website no longer available