Aegisub

Aegisub is an open-source subtitle creation and editing tool for Windows. It is intended for people who need to write subtitles, adjust existing subtitle files, and align subtitle timing with audio. The software provides tools for working with subtitles alongside the media they accompany.

Its timing tools help users synchronize subtitle lines with spoken audio. Aegisub also includes options for styling subtitles, allowing their appearance to be adjusted within the subtitle editing workflow. A built-in real-time video preview lets users review how subtitles appear while making changes. Together, these features support both the technical timing and visual presentation of subtitle tracks.

Aegisub is distributed through MirrorNest for the Windows platform under its open-source license. MirrorNest stores the official build directly on its own storage and scans it for malware before publishing it. This makes the catalog entry suited to users looking for the Windows build of an open-source subtitle editor.