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SMI SSA
File conversion

Convert SMI to SSA

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Is it possible to convert SMI to SSA?
Yes - SMI converts to SSA.

ASS/SSA adds styling and positioning. Subtitle Edit converts SAMI to .ssa/.ass; SAMI's CSS classes map loosely to SSA styles.

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Also to SSA: SBV · ASS

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Tested on macOS, Windows & Linux
Last verified Oct 2026

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How to convert SMI to SSA

Converting a .SMI file to .SSA lets you open the content in software that prefers the .SSA format, though some details may change compared with the original. The programs listed below open .SMI files and can save or export them to .SSA (or a closely related format). One of them is URUworks Subtitle Workshop: Subtitle Workshop is a subtitle file editing and creation application developed by URUWorks. It supports a wide range of subtitle formats including SRT, ASS,….

A full step-by-step guide for this conversion is on the way; the information above is drawn straight from our database.

Programs that convert SMI

URUworks Subtitle Workshop

About these formats

.SMI SAMI Captioning File

A SMI file is usually a SAMI caption file - Microsoft's HTML-like subtitle format for video, introduced in 1998. To watch it with a video, give the .smi the same base name as the video and…

Open .SMI details →
.SSA SubStation Alpha subtitle file

A .SSA file is associated with SubStation Alpha subtitle, a text file.

Open .SSA details →