Download and install the latest version of Filestar.
Right click on one or more Jtf file(s) on your desktop and select Convert with Filestar.
Type convert to bmp in the search box.
Press Convert.
Or let an AI agent do it: filestarcli -i file.jtf -c "convert to bmp" (how).
Documents - File Explorer─☐✕
This PC › Documents
Home
Desktop
Downloads
Documents
Pictures
Music
.jtfContract.jtf
.xlsxBudget.xlsx
.pdfReport.pdf
.pngLogo.png
Filestar*Help✕
Drop files here to get started
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Let your AI agent convert JTF to BMP
Claude Code, Codex, Cursor and other agents can do this on your computer with Filestar. Your files stay on your machine. It works on Windows, macOS only.
Install Filestar and add it to your agents:
npm install -g filestar
filestarcli agent install
Then ask your agent:
“Convert the JTF files in my Downloads folder to BMP”
Or run it yourself:
filestarcli -i file.jtf -c "convert to bmp"
Runs on your computer, so your files stay on it. Works on Windows and macOS. 50 free conversions with the npm install, no account needed.
Can my AI agent convert JTF to BMP?
Yes. Install the Filestar CLI with npm install -g filestar and your agent can run filestarcli -i file.jtf -c "convert to bmp" on your computer, so your files stay on it.
The JTF file format, associated with Hayes JT Fax, represents a type of image file specifically designed for fax documents. It is used to store scanned or digitally created documents that are meant to be sent or received through a fax service. The format is optimized for the efficient encoding of black and white images, typical of fax transmissions, ensuring that text and simple graphics are clear and legible. JTF files support a form of compression to reduce file size without significantly compromising the quality of the document, making it suitable for quick transmission over phone lines.
A BMP file is an uncompressed raster image comprised of a rectangular grid of pixels. It contains a file header (bitmap identifier, file size, width, height, color options, and bitmap data starting point) and bitmap pixels, each with a different color.
