Conversion of sub files to ass file format

As both .sub and .ass files are movie subtitles files and as such can be converted from sub to ass another and vice versa. This can be usually achieved using some dedicated subtitles editors, including those listed below. It's worth mentioning that some simple changes can be also done using a text editor, no sub to ass conversion for this purpose is required.

Open SUB file    Open ASS file

Related software

Aegisub icon


A tool for creating and modifying subtitles


A subtitle editor for OS X (macOS)

Gnome Subtitles

A subtitle editor for GNOME

Jubler subtitle editor

A program for editing of text subtitles for videos

Subtitle Workshop icon

Subtitle Workshop

A free subtitle editor

URUworks Subtitle Workshop icon

URUworks Subtitle Workshop

An older freeware subtilte editing application