Download and install the latest version of Filestar.
Right click on one or more Jss file(s) on your desktop and select Convert with Filestar.
Type convert to mpl2 in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.jss -c "convert to mpl2" (how).
Documents - File Explorer─☐✕
This PC › Documents
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Desktop
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.jssContract.jss
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert JSS to MPL2
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 JSS files in my Downloads folder to MPL2”
Or run it yourself:
filestarcli -i file.jss -c "convert to mpl2"
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 JSS to MPL2?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.jss -c "convert to mpl2" on your computer, so your files stay on it.
JACOsub is a plain-text subtitle format from the JACOsub editor. Each line holds a start and end time, a directive and the text, and # lines set options such as the time resolution.
MPL2 is a plain-text subtitle format from the MPlayer project. Each line holds a caption as [start][end]text, with times in tenths of a second and | between lines of text.