Download and install the latest version of Filestar.
Right click on one or more Ssa file(s) on your desktop and select Convert with Filestar.
Type convert to smi in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.ssa -c "convert to smi" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
Music
.ssaContract.ssa
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert SSA to SMI
Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine.
Install Filestar and add it to your agents:
npm install -g filestar
filestarcli agent install
Then ask your agent:
“Convert the SSA files in my Downloads folder to SMI”
Or run it yourself:
filestarcli -i file.ssa -c "convert to smi"
Runs on your computer, so your files stay on it. Works on Windows, macOS and Linux. 50 free conversions with the npm install, no account needed.
Can my AI agent convert SSA to SMI?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.ssa -c "convert to smi" on your computer, so your files stay on it.
SubStation Alpha (SSA) is a text-based subtitle file format used for captioning video and audiovisual media. It is widely used in fan-made anime music videos, karaoke videos, and other fan-made video projects. SSA files contain the timing, positioning, and content of each subtitle, which can be edited and modified with text editing software.
SMI (Synchronized Accessible Media Interchange) is a file type associated with multimedia presentation files. It is used to store captions and subtitles for multimedia files as well as other data such as timing information, font information, and language information. It is commonly used for videos, DVDs, and other multimedia content.
